# Rastrac vs Lettor

The clearest difference is update cadence: Rastrac at every 8 days against Lettor's every 13 months. Rastrac also leads on iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Rastrac ships an update every 8 days, Lettor every 13 months. The most recent releases landed on October 6, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Rastrac | Lettor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 13 months |
| Size | 26 MB | 38 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jonata Oliveira](https://appshunter.io/developer/1439233114) | [Amanda Tonial](https://appshunter.io/developer/1550819745) |

## What reviewers say

### Rastrac

[App page](https://appshunter.io/ios/app/rastrac/id1497735197)

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

**In-app purchases:** none


### Lettor

[App page](https://appshunter.io/ios/app/lettor/id1550819743)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rastrac free?

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

### Is Lettor free?

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

### Do Rastrac or Lettor have ads?

Neither Rastrac nor Lettor shows ads.

### Which is updated more often, Rastrac or Lettor?

Rastrac ships an update every 8 days, and Lettor every 13 months. Most recently, Rastrac was updated on October 6, 2026 and Lettor on October 27, 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.*