# Unit Convert Master vs Gallery Lock Crypto Encrypted

The clearest difference is ads: Gallery Lock Crypto Encrypted at none against Unit Convert Master's shown. Gallery Lock Crypto Encrypted also leads on update cadence (every 3 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Unit Convert Master ships an update every 4 months, Gallery Lock Crypto Encrypted every 3 days. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Unit Convert Master | Gallery Lock Crypto Encrypted |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/unit-convert-master/id6743671551/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 11 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mizuki Hoshida](https://appshunter.io/developer/1797942917) | [PDF SCANNER LLC](https://appshunter.io/developer/1849869675) |

## What reviewers say

### Unit Convert Master

[App page](https://appshunter.io/ios/app/unit-convert-master/id6743671551)

Easily convert between over 100 measurement units across 15 categories. This app offers a user-friendly interface, offline functionality, and a history of your conversions for quick access. Ideal for students, professionals, and everyday users needing precise calculations.

**Highlights:** 15+ conversion categories, 100+ measurement units, Intuitive interface with themes, Custom keyboard for input, Conversion history with search, Offline functionality

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

**In-app purchases:** none


### Gallery Lock Crypto Encrypted

[App page](https://appshunter.io/ios/app/gallery-lock-crypto-encrypted/id6762511131)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Convert Master free?

Unit Convert Master is free to download, with no in-app purchases.

### Is Gallery Lock Crypto Encrypted free?

Gallery Lock Crypto Encrypted is free to download, with no in-app purchases.

### Do Unit Convert Master or Gallery Lock Crypto Encrypted have ads?

Unit Convert Master shows ads; Gallery Lock Crypto Encrypted does not.

### Which is updated more often, Unit Convert Master or Gallery Lock Crypto Encrypted?

Unit Convert Master ships an update every 4 months, and Gallery Lock Crypto Encrypted every 3 days. Most recently, Unit Convert Master was updated on September 13, 2026 and Gallery Lock Crypto Encrypted on September 9, 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.*