# PSA Set Registry vs StackerTools Coin and Bar Test

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.

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.

## The numbers

| Metric | PSA Set Registry | StackerTools Coin and Bar Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.5K ratings)](https://appshunter.io/ios/app/psa-set-registry/id1218508459/reviews)** | [4.5 (44 ratings)](https://appshunter.io/ios/app/stackertools-coin-and-bar-test/id6502847897/reviews) |
| Number of ratings | **4.5K** | 44 |
| Positive reviews | 75.3% of reviews | **88.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 31 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PSA](https://appshunter.io/developer/733912121) | [SoundMoneyMetals](https://appshunter.io/developer/1747030161) |

## What reviewers say

### PSA Set Registry

[App page](https://appshunter.io/ios/app/psa-set-registry/id1218508459)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Helpful for organizing collection
- 🚀 Convenient for on-the-go access
- 👍 Provides useful information about cards

**What reviewers complain about**

- 🐛 Buggy, crashes frequently
- 🐛 Slow performance, long load times
- 🐛 Issues with photo uploads
- 🐛 Unreliable server connectivity

**Reported bugs**

- Unable to add cards to sets
- Duplicate card listings
- Inconsistent data display

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/stackertools-coin-and-bar-test/id6502847897)

Detect counterfeit precious metals like gold, silver, and bullion using sound. This tool acts as a bar and coin tester, helping you verify authenticity.

**Highlights:** Counterfeit detection, Verify gold coins, Verify silver coins, Test bullion, Sound-based analysis, Bar and coin tester

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PSA Set Registry free?

PSA Set Registry is free to download, with no in-app purchases.

### Is StackerTools Coin and Bar Test free?

StackerTools Coin and Bar Test is free to download, with no in-app purchases.

### Which has better reviews, PSA Set Registry or StackerTools Coin and Bar Test?

PSA Set Registry is rated higher. PSA Set Registry averages 4.8 out of 5 from 4.5K ratings, while StackerTools Coin and Bar Test averages 4.5 from 44 ratings.

### Do PSA Set Registry or StackerTools Coin and Bar Test have ads?

Neither PSA Set Registry nor StackerTools Coin and Bar Test shows ads.

### Which is updated more often, PSA Set Registry or StackerTools Coin and Bar Test?

PSA Set Registry ships an update monthly, and StackerTools Coin and Bar Test every 3 weeks. Most recently, PSA Set Registry was updated on October 24, 2026 and StackerTools Coin and Bar Test on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*