# Work Permit vs Gemstone Identifier ◦ GemLens

The clearest difference is in-app purchases: Work Permit at none against Gemstone Identifier ◦ GemLens's 2. Work Permit also leads on iOS requirement (14.0 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Gemstone Identifier ◦ GemLens sells 2 in-app purchases, starting at $3.99 per 7 days. Work Permit asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Work Permit | Gemstone Identifier ◦ GemLens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 64 MB | 14 MB |
| Requires iOS | **14.0** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [UDAYA TECHNOLOGY CO., LTD](https://appshunter.io/developer/1040342759) | [Ikhwan Noorsetyo](https://appshunter.io/developer/1739847271) |

## What reviewers say

### Work Permit

[App page](https://appshunter.io/ios/app/work-permit/id1658940286)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gemstone Identifier ◦ GemLens

[App page](https://appshunter.io/ios/app/gemstone-identifier-gemlens/id6755826517)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Stonely | $3.99 | per 7 days |
| Yearly Stonely | $39.99 | per year |


## Frequently asked questions

### Is Work Permit free?

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

### Is Gemstone Identifier ◦ GemLens free?

Gemstone Identifier ◦ GemLens is free to download, with in-app purchases available.

### Do Work Permit or Gemstone Identifier ◦ GemLens have ads?

Neither Work Permit nor Gemstone Identifier ◦ GemLens shows ads.

### Which is updated more often, Work Permit or Gemstone Identifier ◦ GemLens?

Work Permit ships an update every 2 months, and Gemstone Identifier ◦ GemLens every 2 months. Most recently, Work Permit was updated on September 30, 2026 and Gemstone Identifier ◦ GemLens on October 10, 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.*