How to Use 
StackerScan is available on any device: Web, Android, and iOS.
- Web app in a browser (desktop or mobile)
- Android app from Google Play
- iPhone/iPad app from the Apple App Store
- Mac desktop (optional): if you have a Mac that supports iPad apps, you can install and use the iPad version on your desktop
One Account, Everywhere
Your same StackerScan account works across all of these. That means you can:
- create your account once,
- sign in on any device (web, Android, iPhone/iPad),
- and access the same portfolio and all StackerScan's features from any/all of them (no separate accounts per device).
So, you can scan receipts on your phone, review charts on your laptop, and update entries on a tablet—all under one login. StackerScan combines the functional advantages of a web app with the convenience of a phone app (i.e., camera for scanning receipts / taking product photos, and quick update checks right in your pocket).
Create Account
Use one of these methods to create your account. Once created, sign in to your account on any device in the future (web, Android, iPhone/iPad).
- Google: Press the Continue with Google button. You'll be redirected briefly to Google. Choose the account you want to use and press Continue. Your StackerScan account will be activated and opened.
- Apple: Press the Continue with Apple button. You'll be redirected briefly to Apple. Choose the account you want to use and press Continue. Your StackerScan account will be activated and opened.
- Email: Enter your email address and create a password. A verification code will be instantly emailed. Enter that code on the verification page to confirm your email address, and your account will be active. If you forget your password, recover your account by clicking Forgot Password on the sign-in page. A 6-digit password reset code will be emailed to you.
- Username: (Anonymous) Create your own username and password. No email address will be associated with your account. You'll be given a 12-word recovery phrase. Write it down and keep it somewhere safe. It's the only way to recover your account if you lose access (forget your password).
Flexible Sign-In
StackerScan accounts are email-based (except Username/Anonymous accounts). After your account is created, you can sign in with Google, Apple, or Email—as long as the sign-in method verifies the same email address.
Certain settings are preset according to your location: base currency, language, country, and weight unit. These can be changed in Stack Settings, accessed through your account avatar in the upper right corner.
Base Currency
Choose the currency in which you want to see your stack/portfolio displayed. The individual records for purchases made in other currencies will show the original currency, but in portfolio valuation areas the holdings will be displayed in your chosen base currency (charts, metal cards, portfolio totals).
Example: You purchased a Canadian Silver Maple Leaf in Canadian dollars (CAD), but you use USD as your base currency. The product record (in table and card view) will display the item's value, ROI, and history chart in CAD. The portfolio overview (and associated charts) will convert the product's value to your base currency (USD) and include it with your other holdings.
Base currency can be changed at any time without any changes to your actual data.
Example: You are from the United States but are traveling in Europe, thinking of buying a property there, and want to know your portfolio value in the local currency. Simply switch your base currency to Euros, then switch back to USD at your convenience. StackerScan will complete the calculations with no permanent impact on your data, which remains untouched.
Changing Base Currency also sets the Weight Unit that usually goes with that currency, and fills in its Country and Language unless you have already changed them yourself while Stack Settings is open. For example, changing from USD to MXN (Mexican Peso) sets Country to Mexico and can set Language to Español (Spanish). Nothing changes until you click Save Changes. These settings are independent of each other: after choosing a currency, you can choose any Language and any Country. (See Language and Country instructions.)
Example: You are an expat living in Mexico and want to see your holdings in Mexican Pesos, but you are an English speaker. Choose MXN as your Base Currency, choose English as your Language, and click Save Changes. Your account will be in English but your valuations will be in Pesos.
Language and Country
Language sets your account's language. The dropdown lists every language StackerScan is available in, each in its own name (for example, Español or Français), whatever base currency you are using. Country sets, with your language, how dates and numbers are written, and the dropdown lists every country whose currency StackerScan supports. Both can be changed as you wish, regardless of what base currency you are using; click Save Changes to apply them.
Example: You are a French speaker living in Dubai. Your base currency was automatically set to AED (United Arab Emirates Dirham), your Language to Arabic and your Country to United Arab Emirates. Using the Language dropdown, select Français, and click Save Changes. Your account will be in French and your currency in AED.
Weight Unit
The weight of your items can be calculated at the Portfolio level in either troy ounces (ozt) or grams (g). This setting defaults to the standard for your Base Currency. The setting can be changed without permanent impact to your underlying data. Meaning, you may toggle back and forth at will.
Individual items will remain in their original weights, regardless of the weight unit chosen to view the entire Portfolio.
Example: You purchased a 1 ozt American Eagle, but your base currency is EUR, which expresses metal weights in grams. Your Portfolio valuations (charts, metal cards, totals) will show in grams, but the American Eagle will show in ozt when viewed at the item level (in table or card view).
Example: Your country/currency uses grams, but you would like to see what your holdings translate to in troy ounces. Open Stack Settings and toggle Weight Unit to troy oz. Your entire Portfolio will now show in ozt. You may change back to grams at will, with no change to your underlying data.
Chart Style
The default chart style is Candlestick (OHLC). In Stack Settings → Chart Style, this can be changed to a line chart. The change will be universal (Stack Value History, Item Value History, Live Metal Prices). This setting can be toggled at will. (Stack History chart is always a line chart.)
Both chart styles will responsively show date and amount details in response to pointer or touch. The x- and y-axes can be manipulated by click-and-drag motions. The entire graph can be moved within the charts by click-and-drag. Time frame can be selected in the upper right of the charts themselves: 5-day, 30-day, 90-day, all.
Candlestick charts show additional market information in the upper left for the date that is selected (via pointer or touch): Opening amount, High amount, Low amount, Closing amount.
Reading Candlestick (OHLC) charts:
- The wick shows the high and low for the day.
- The thick body shows the open and close for the day.
- The candle color indicates if the price went up (green or light blue) or the price went down (red or dark blue).
Receipt Images
Set your account to either delete the image of your receipt after StackerScan scans, processes, and adds its data to your stack, or to keep the receipt image. If kept, the receipt image will be attached to the item(s) record(s) and can be found in the individual item record: in table view, using the overflow/actions menu (3 horizontal dots), in card view using the overflow/action menu or by opening the whole card and scrolling downward. Clicking on the receipt thumbnail or choosing View receipt will open the full-size version.
Deleting Receipts: Receipts which are kept can later be individually deleted at the item record level. To delete only the receipt image and keep its items, use the 3-dot Actions menu (in either table or card view) to choose Delete receipt image. WARNING: Delete receipt and records will DELETE ALL THE ITEMS ASSOCIATED WITH THE RECEIPT. If you do want to delete all the items the receipt lists, open one of the items that were added to your stack when that receipt was scanned in, and use the same menu to choose Delete receipt and records. This action cannot be undone.
If the receipt and its associated item(s) were deleted accidentally, simply rescan the receipt into StackerScan.
There are five ways to add items to your stack: by AI-assisted natural language search, from a coin photo, by scanning a receipt, by importing a spreadsheet, or by manual entry. The first four are assisted by AI, making your task simple and quick.
All five start from the blue + Add to Stack button at the top of your portfolio page. Click the button itself to search for an item or enter it by hand, or click the arrow beside it and choose Add item from photo, Scan receipts or Import spreadsheet.
Costs for Adding Items to Your Stack
Each item you add costs 1 CREDIT, however you add it:
- Scanning Receipts: 1 CREDIT for each item a receipt adds. A receipt that adds nothing is free.
- Importing Spreadsheets: 1 CREDIT for each item a spreadsheet adds.
- Identifying a Coin from a Photo: each successful photo search (includes both sides of coin) costs 1 CREDIT and also covers adding that item — failed searches are free.
- Manual Entry: each item added costs 1 CREDIT.
10 Silver Eagles bought together are 1 item: 1 credit.
Photos can be attached to any item in your stack after it has been saved. Each item can hold up to 4 images—photos of your coin, bar, slab, packaging, or anything else you'd like to keep with the record.
- In your Stack Details section, find the item you want to add a photo to and click its three-dot Actions menu (…) on the right side of the table row or upper right side of the card. Select Upload image.
-
In the Upload Product Image dialog, choose your image by dragging it into the drop zone, clicking Browse photos to select from your files, or clicking Use camera to take a picture with your device's camera.
Supported image types: JPG, PNG, WebP, GIF, BMP, HEIC, HEIF. Maximum file size: 10 MB per image.
Once a file is selected, a preview will appear along with the filename and file size. You can click Choose a different image to swap it out, or Remove file to start over.
- Click Upload Image. Once complete, the dialog will close and the image will appear in a product image gallery in the item's expanded card or row in your Stack Details.
- To add more images, repeat steps 1–3. Up to 4 images can be attached to a single item. When the limit is reached, the upload dialog will let you know—delete an existing image to make room for a new one.
Viewing and Managing Your Photos:
A camera icon in your item's card or table row will display how many images are attached to the item. Expand the item in your Stack Details table (by tapping the row) or card (by tapping the down carat) to see its attached images.
Delete an image by clicking the X in the upper right corner — this opens a confirmation dialog. Deletion is permanent and cannot be undone.
(Hint: If you added a photo using the camera icon during item creation via + Add to Stack → Add item from photo, those images are automatically attached to the item once it's saved — no need to upload them separately.)
The Portfolio Overview is displayed at the top of the portfolio page. It gives you an at-a-glance summary of your precious metals holdings, valued in real time against live spot prices. It can be filtered by Tags and by Metals. Filtering here will cascade throughout the entire portfolio page, defining what is shown in each following section.
Total Portfolio Value
Your total portfolio value is displayed in the upper right area in your stack's base currency. A refresh button (circular arrow icon) lets you manually check for the latest prices at any time. The timestamp beside it shows when prices were last updated. Prices are updated every 2 minutes while metal markets are open.
An eye icon next to the total value toggles fiat visibility—click it to hide all dollar amounts (they'll display as “****”), useful when viewing your portfolio in public. Weights and percentages remain visible.
Metal Holdings Cards
Each metal you hold is represented by a color-coded card. A card displays:
- Metal name and symbol (e.g., Gold / Au).
- Current spot price per unit, with a small chart icon you can click to view the metal's price history. Spot price is updated automatically every 2 minutes while metal markets are open.
- Daily spot price change—amount and percentage, color-coded green (up) or red (down). Click the spot price to show or hide it.
- Total weight held, displayed in your chosen weight unit (change unit in Stack Settings).
- Total value of your holdings in that metal, at the current spot price.
- Gain/loss percentage relative to your cost basis.
- Average price paid per unit (shown if purchase data is available, excludes tax/shipping data).
Cards are interactive: click one or more cards to filter by metal(s). Metals you don't select will appear as smaller secondary cards. Filtering here will cascade throughout the portfolio page.
Performance Metrics
Below the metal cards, a set of performance indicators summarizes your portfolio's health:
- ROI (Return on Investment)—shows your total gain or loss in both currency and percentage. Use the All time / Current year toggle to switch between all-time ROI and year-to-date ROI. When you switch to Current year, the gain/loss percentages on the metal cards update as well.
- Daily Change—how much your portfolio's value changed today, in currency and percentage.
- Total Weight—the combined weight of all your holdings, shown at the top left of the overview, in the weight unit configured in your Stack Settings.
Filtering by Tags
The Tags button in the Portfolio Overview opens the tag filter. Select one or more tags and choose whether to match any or all of them. All portfolio metrics—values, weights, ROI—recalculate to reflect only the filtered items. Any filter applied here will cascade to all the following sections on the portfolio page. See the How to Use Tags section for complete instructions.
Filtering by Metal
Click a metal card to filter the portfolio to that metal. Multiple metals can be selected. Unselected cards will reduce to thumbnail size but can be added back by clicking them. A blue notification bar will confirm the active filter (e.g., “Filtered by: Gold”) and all portfolio values will update accordingly. Click the X on the notification bar to clear the filter, or click individual cards to deselect them.
Sharing Your Portfolio
The Share button (share icon) beside the refresh button lets you capture a snapshot of your portfolio summary as a PNG image. The image includes a StackerScan watermark. Your device's share dialog opens with it where your device has one; otherwise the image downloads.
Below is an explanation of the fields of data StackerScan records for each item. The item form which appears when a user initially adds an item (+ Add to Stack) and when a user decides to edit the information on an existing item (Edit Buy in the item's Actions menu) is the same. The field data appear in each individual item record and can be made visible/hidden in the Stack Details table with the Columns button, under Table tools. Required fields are marked Needed in the form until they are filled in.
The Item Form
Buy (In) / Sell (Out) button pair switches the form between buy and sell modes, which changes some field labels and visibility (e.g., “Total” becomes “Total Received,” the Tax field disappears in sell mode). Buy (In) is selected by default.
Buy details (product) (required) — Description of what you bought (e.g., “1 oz Gold Eagle”). Labeled “Sell details (product)” in sell mode, and marked “Start here” when adding an item. A Find button below the field triggers an AI product lookup that auto-fills most of the form. A camera or photo icon in the field allows AI product lookup of user's snapshot of item. After a successful Find, the form shows Product identified and lists what it filled in under Understood.
Quantity (required) — Number of units.
Product section (accordion)
Contains metal and weight detail fields.
Metal (required) — Dropdown: Gold, Silver, Platinum, Palladium, Copper, Nickel.
Weight Unit (required) — Toggle: troy oz or gram. Controls the unit label shown on weight fields throughout the form.
Category (required) — Dropdown:
- Bullion – precious metal valued primarily for its metal content.
- Junk – circulated coins valued mainly for their metal content, not sold by face value.
- Numismatic – coins or items valued for rarity, age, condition, historical significance.
- Jewelry – precious metal crafted into wearable items. StackerScan values by weight only.
- Other – examples: sterling silverware, industrial components, novelty items, medals.
Form (required) — Dropdown:
- Bar – rectangular piece primarily for storage and investment.
- Coin – issued by a government mint with a denomination. Valued for metal, collectability, or both.
- Round – a coin-shaped piece made by a private mint. Has no face value and is not legal tender.
- Goldback – an alternative currency note denominated in fractions of gold.
- Custody – precious metal stored on your behalf by a third party.
- Jewelry – crafted into wearable items.
- Other – forms that don't fit the above categories.
Unit Melt Weight (required) — The pure precious metal weight per single unit (in troy oz or grams), ignoring alloy.
Total Melt Weight (read-only, calculated) — Automatically computed as Unit Melt Weight × Quantity.
Unit Gross Weight (optional; required for Jewelry) — The total physical weight per unit, including any alloy metals.
Purity (optional; required for Jewelry) — Choose the metal's purity from the list, or type it (e.g., .999, 90%, 22k).
Purchase section (accordion, open by default; “Sale” in sell mode)
Vendor / Dealer (optional) — Where you bought it (e.g., APMEX, Local Coin Shop, Uncle Mike). Label changes to “Sold to” in sell mode and “From” in gift mode.
Purchase Date (required) — Three separate fields for month, day, and year. A Today link auto-fills the current date. Label changes to “Sell Date” in sell mode.
Total (required unless “Gift” is selected) — The total amount you paid for all the units, not including tax or shipping. A Paid / Gift toggle to the right switches between a normal purchase and a gift. Selecting Gift disables this field and sets the value to $0. Label changes to “Total Received” in sell mode.
Currency (required, pre-filled) — Dropdown of supported currencies (e.g., “USD - US Dollar”). Defaults to your stack's base currency. Change if your purchase price was in a currency other than your base currency.
Grading Details section (accordion, collapsed by default)
For numismatic and graded coins. When collapsed, shows a summary line if values are present.
Year (optional) — Coin year (e.g., “2024”).
Grade (optional) — Coin grade (e.g., “MS-65”, “PF70 DCAM”).
Mint Mark (optional) — Mint of origin (e.g., “D”, “S”).
PCGS # (optional, for graded/numismatic coins only) — Enter either the PCGS coin number or certificate number to look up the PCGS price guide value.
- – When a certificate number is entered, Year, Grade, Mint Mark, and Unit Value Override (price) are automatically set from PCGS data (either upon saving or by clicking the search button, a magnifying glass).
- – When a coin number is entered, you will need to set Year and Grade fields manually. Once you do that, the search button fetches the current PCGS price guide value and sets it as the Unit Value Override.
The current PCGS price guide value is synced to the Unit Value Override field by the system going forward.
Unit Value Override (optional, buy mode only) — Overrides StackerScan's standard valuation by weight with a value appropriate to numismatic/graded items. Auto-populated by a successful PCGS lookup (if you haven't already entered a value) and will be synced to the PCGS price guide value going forward. If you set your own value (Set your own value, under Worth today), the system will not override it.
More Options (accordion, collapsed by default)
Tax (optional) (Buy mode only, hidden for Gifts) — Tax amount paid on the transaction. Included in Premium percentage calculation in item record.
Shipping (optional, Buy mode only, hidden for Gifts) — Shipping paid. Included in Premium percentage calculation in item record.
Purchase Time (optional) — Time of the transaction, with a flexible input (accepts “9:30”, “930”, “21:30”, etc.) and AM/PM toggle buttons. A Now link auto-fills the current time.
Spot Price (optional, Buy mode only) — Spot price at the time of your purchase. Used for Premium percentage calculation in item record.
Tags (optional) — Free-form labels for organizing your items. Type a tag and press Enter (or comma, semicolon, or click Add). Tags appear as removable badges. Up to 20 tags, 50 characters each, can be added. Tags added here will be available to use for other items, via the Stack Details. See the How to Use Tags section for more detail.
Notes (optional) — Free-text area for any additional details. 5,000-character limit.
Tags are free-form labels you create to organize and filter the items in your stack however you like. There are no pre-defined tags — create whatever makes sense for how you think about your collection.
Some ways you might use tags:
- Create multiple stacks: Retirement, Kids' Inheritance, Scottish Hoard
- Track where items came from: LCS, Online, Estate Sale, Inheritance, Gift
- Group by purpose or strategy: Long-term Hold, For Sale, Trading Stock
- Mark storage location: Home Safe, Bank Vault, Safety Deposit Box
- Organize by acquisition context: 2024 Batch, Black Friday Deal, Coin Show
- Flag items for attention: Needs Grading, To Sell, Underperforming
Adding Tags to an Item
- When logging a buy (or editing an existing item), open the More Options accordion at the bottom of the form.
- In the Tags field, choose from existing tags or type your new or existing tag text and press Enter, comma, or semicolon to add it. You can also click the Add button. Each tag appears as a removable chip below the input. You can add up to 20 tags per item, 50 characters each.
- To remove a tag before saving, click the X on its chip.
- Save the transaction. Your tags are now attached to the item. New tags created in this way will be available at the Stack Details level to add to other items.
You can also add a tag directly from the Stack Details table, using the “Bulk Tagging Multiple Items” instructions below. Add/change tags for one or multiple items at one time.
Removing Tags from an Item
- In your Stack Details, use the three-dot Actions menu on the item's table row or card to select Edit Buy.
- Open the More Options accordion at the bottom of the form.
- Currently applied tags will appear below the Tags field. Use the X by their names to delete one or more.
- Save the form.
*Please note, tags cannot currently be deleted in bulk. They must be removed from individual item records, as above.
Bulk Tagging Multiple Items
- In your Stack Details table, select the item(s) you want to tag by checking their rows.
- A toolbar will appear showing the number of items selected. Click the Tags button.
- In the Manage Tags popover, you can create new tags by typing in the input and pressing Enter, or select from existing tags already in use across your stack.
- Choose your operation mode:
- Add to existing — the selected tags will be appended to each item's current tags.
- Replace existing — each item's tags will be entirely replaced with the selected tags.
- Click Apply Tags.
Filtering Your Stack by Tags
- In Portfolio Overview, click the Tags button. Existing tags will appear in the Filter by Tags popover. Each tag shows a count of how many items carry it.
- Click one or more tags to toggle it on or off.
- When two or more tags are selected, a match toggle appears. Choose one:
- Any — shows items that have at least one of the selected tags.
- All — shows items that have every one of the selected tags.
- Your portfolio, charts, metal stats, and item records visible in Stack Detail all update to reflect only the filtered items.
- Click Clear in the Filter by Tags popover to remove the tag filter and return to your full stack view.
Tags filters will remain intact if you also filter by metal. You can create multiple stacks using tags, and still filter and analyze by metal within the selected stack.
Tag filters are stored in the URL, so you can bookmark or share a filtered view.
Credits mainly pay for adding items to your stack. Viewing your stack, charts and spot prices is free. New accounts start with 15 free credits.
1 item/entry = 1 credit, whatever the quantity
An item is one product bought together at one price, in any quantity. The same coin bought at two different prices is 2 items.
10 Silver Eagles bought together are 1 item: 1 credit.
What each way of adding costs
- Coin photo: a successful scan costs 1 credit, and that covers adding the item. A scan that can't identify the coin is free.
- Manual entry: 1 credit for each item you add.
- Receipts: 1 credit for each item the receipt adds. A receipt that adds nothing is free.
- Spreadsheets: 1 credit for each item the sheet adds, so a 20-row sheet costs at most 20 credits.
Checking and buying credits
Your balance is at the top of your stack page. Click it to see your remaining credits, buy more with Get credits, or open Credit History to see where each credit went. You buy credits once and they never expire. There's no subscription.