# CyberTools vs Letrin

The clearest difference is price: Letrin at Free against CyberTools's $0.99. Letrin also leads on update cadence (fortnightly vs monthly) and iOS requirement (15.5 vs 17.0). CyberTools's advantage is in-app purchases (none vs 5). On ads and device support there is nothing between them.

Letrin is free to download; CyberTools costs $0.99 up front. Letrin sells 5 in-app purchases, starting at $4.99 per month. CyberTools asks for nothing beyond the download.

CyberTools ships an update monthly, Letrin fortnightly. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CyberTools | Letrin |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 4 MB | 73 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [琼琳 徐](https://appshunter.io/developer/1878277804) | [Alperen Gedik](https://appshunter.io/developer/6794882488) |

## What reviewers say

### CyberTools

[App page](https://appshunter.io/ios/app/cybertools/id6759388383)

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

**In-app purchases:** none


### Letrin

[App page](https://appshunter.io/ios/app/letrin-letter-translate/id6794882486)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Letrin Plus | $4.99 | per month |
| Letrin Plus | $49.99 | per year |
| 1 letter | $1.99 | one-time |
| 5 letters | $3.99 | one-time |
| 15 letters | $11.99 | one-time |


## Frequently asked questions

### Is CyberTools free?

CyberTools costs $0.99, with no in-app purchases.

### Is Letrin free?

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

### Do CyberTools or Letrin have ads?

Neither CyberTools nor Letrin shows ads.

### Which is updated more often, CyberTools or Letrin?

CyberTools ships an update monthly, and Letrin fortnightly. Most recently, CyberTools was updated on October 8, 2026 and Letrin 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.*