# ZOLVE vs Diamond Tester

The clearest difference is in-app purchases: ZOLVE at none against Diamond Tester's 2. ZOLVE also leads on iOS requirement (11.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Diamond Tester sells 2 in-app purchases, starting at $5.99 per 7 days. ZOLVE asks for nothing beyond the download.

ZOLVE ships an update every 5 months, Diamond Tester every 2 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ZOLVE | 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 61 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zahoransky](https://appshunter.io/developer/1472980848) | [Muhammad Mukama](https://appshunter.io/developer/1803560720) |

## What reviewers say

### ZOLVE

[App page](https://appshunter.io/ios/app/zolve/id1498601150)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 ZOLVE free?

ZOLVE is free to download, with no in-app purchases.

### Is Diamond Tester free?

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

### Do ZOLVE or Diamond Tester have ads?

Neither ZOLVE nor Diamond Tester shows ads.

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

ZOLVE ships an update every 5 months, and Diamond Tester every 2 months. Most recently, ZOLVE was updated on October 10, 2026 and Diamond Tester on October 24, 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.*