# VerifyOnce vs Diamond Tester

The clearest difference is update cadence: VerifyOnce at every 3 weeks against Diamond Tester's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. VerifyOnce sells 2 in-app purchases, starting at $4.99 per month and Diamond Tester sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

VerifyOnce ships an update every 3 weeks, Diamond Tester every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | VerifyOnce | Diamond Tester |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (13 ratings)](https://appshunter.io/ios/app/diamond-tester-scintrix/id6759899831/reviews)** |
| Number of ratings | — | **13** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 79 MB | 61 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kenner allen](https://appshunter.io/developer/1874398569) | [Muhammad Mukama](https://appshunter.io/developer/1803560720) |

## What reviewers say

### VerifyOnce

[App page](https://appshunter.io/ios/app/verifyonce/id6759641242)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VerifyOnce Pro Monthly | $4.99 | per month |
| VerifyOnce Pro Annual | $39.99 | per year |


### Diamond Tester

[App page](https://appshunter.io/ios/app/diamond-tester-scintrix/id6759899831)

This app uses your device's camera to scan and analyze diamonds, providing detailed reports on authenticity, quality, and comparisons to lookalike stones. It helps buyers, collectors, and resellers evaluate gemstones with visual evidence and confidence scores.

**Highlights:** Instant diamond scanning via camera, Evidence-based authenticity reports, Confidence scoring for diamond quality, Comparison with lookalike stones, Scan quality assessment, Detailed 4C analysis, Digital diamond collection storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $5.99 | per 7 days |
| Yearly Pro | $29.99 | per year |


## Frequently asked questions

### Is VerifyOnce free?

VerifyOnce is free to download, with in-app purchases available.

### Is Diamond Tester free?

Diamond Tester is free to download, with in-app purchases available.

### Do VerifyOnce or Diamond Tester have ads?

Neither VerifyOnce nor Diamond Tester shows ads.

### Which is updated more often, VerifyOnce or Diamond Tester?

VerifyOnce ships an update every 3 weeks, and Diamond Tester every 2 months. Most recently, VerifyOnce was updated on October 31, 2026 and Diamond Tester on October 31, 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.*