PSA Set Registry vs StackerTools Coin and Bar Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PSA Set Registry
Easily organize and manage your PSA-graded card collection. Upload images, track values, and compare your sets with others. Stay on top of your collection as you buy and sell cards.
- Upload card images
- Track purchase dates and prices
- Scan cert verification codes
- Compare sets with other users
- Manage active and sold items
- "What If?" upgrade function
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Calling all card collectors, organizing your PSA-graded collection is now easier than ever. The free PSA Set Registry companion app lets you upload card images and compete for the best sets from your iPhone or iPad. From vintage to modern trading cards, the PSA Set Registry companion app offers an extensive list of sets to choose from, allowing you to quickly add your baseball cards, football cards, hockey cards, non-sports cards, tickets and unopened packs to the app. Stay organized and edit your collection’s information by uploading images, adding your purchase dates, purchase prices, current trading card values, comments, notes and more. Did you sell a card from your collection? No problem! Simply change its status from “active” to “sold” and add the buyer’s name, sale date and sold price! Stay organized as you buy and sell your PSA-graded cards. Improve your trading card, ticket and unopened pack collecting experience with an extensive features list: · Add cards, tickets and packs to your collection with the Quick Add feature by scanning the cert verification code with your iPhone or iPad. · Scan a PSA-graded collectible’s barcode to determine if it will upgrade your set using the “What If?” function · Manage your collection & review set rankings and completion percentages · Compare your sets with other users within the PSA Set Registry App requires internet connection to use. For more information on this and other PSA apps, visit http://www.psacard.com/apps.
StackerTools Coin and Bar Test
Detect counterfeit precious metals like gold, silver, and bullion using sound. This tool acts as a bar and coin tester, helping you verify authenticity.
- Counterfeit detection
- Verify gold coins
- Verify silver coins
- Test bullion
- Sound-based analysis
- Bar and coin tester
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Counterfeit Detection: Verify Gold Coins, Silver Coins, Rounds and Bars with Sound. StackerTools is a coin and bar tester that listens to the “ping” of your precious metals. Gently tap a coin and the app compares its ring with verified genuine examples, or tests it against a physics-backed acoustic model. The app is 100% included with the Pocket Pinger. The password is in the Bonus Pack. WHAT YOU CAN TEST • Gold and silver bullion coins such as American Eagles, Maple Leafs, Krugerrands and more • Silver rounds and 1 oz silver bars • Many other items and tests available, with more coming HOW IT WORKS Pick your coin or bar from the catalog, or search for it. Tap Start and gently ping the item. See the result in seconds: PASS, OK, CAUTION, or FAIL, with tips when a retest is needed. TEST MODES • Peaks: checks the item’s key ring tones • Run: tests several pings in a row • Pro: adds ping-time checks plus size and weight • Acoustic Models: measure your items for custom tests MORE FEATURES • Bookmark Favorites to find the items you test most • Search the catalog, with “See All” keeping your search • Sync the catalog to your phone for offline testing • Get Paid: upload test data and photos, or post new items to the catalog Questions? We’re here to help: Support@StackerTools.com
Screenshots
Verdict
The clearest difference is monetization model: StackerTools Coin and Bar Test at free against PSA Set Registry's free with in-app purchases. StackerTools Coin and Bar Test also leads on review sentiment (89% vs 75%). PSA Set Registry's advantage is ratings volume (4.5K vs 44) and rating (4.8 vs 4.5). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PSA Set Registry holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: PSA Set Registry has 4.5K ratings behind it against 44, so its average is the more settled of the two. Written reviews complicate that: 75% of PSA Set Registry's written reviews are positive against 89% of StackerTools Coin and Bar Test's, so the app with the better star average is not the one people write more warmly about.
PSA Set Registry ships an update monthly, StackerTools Coin and Bar Test every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | PSA Set Registry | StackerTools Coin and Bar Test |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4.5K ratings) — better | 4.5 (44 ratings) |
| Positive reviews | 75.3% of reviews | 88.9% of reviews — better |
| Number of ratings | 4.5K — better | 44 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 28 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | PSA | SoundMoneyMetals |
Customer experience
PSA Set Registry
StackerTools Coin and Bar Test
Bugs and requests
PSA Set Registry
Reported bugs
3 issues- Unable to add cards to sets
- Duplicate card listings
- Inconsistent data display
Requested features
4 requests- Add ability to sort by value
- Improve set creation and management
- Integrate with other sales platforms
- Provide more advanced filtering options
StackerTools Coin and Bar Test
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PSA Set Registry
No in-app purchases
StackerTools Coin and Bar Test
No in-app purchases
Questions
Is PSA Set Registry free?
Is StackerTools Coin and Bar Test free?
Which has better reviews, PSA Set Registry or StackerTools Coin and Bar Test?
Do PSA Set Registry or StackerTools Coin and Bar Test have ads?
Which is updated more often, PSA Set Registry or StackerTools Coin and Bar Test?
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