# Learn to write letters vs Omnidu

The clearest difference is price: Omnidu at Free against Learn to write letters's $2.99. Omnidu also leads on update cadence (every 6 weeks vs every 14 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Omnidu is free to download; Learn to write letters costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn to write letters ships an update every 14 months, Omnidu every 6 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Learn to write letters | Omnidu |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 6 weeks** |
| Size | 1.3 GB | 127 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Juf Jannie](https://appshunter.io/developer/434699273) | [Stichting Op Maat Eduware](https://appshunter.io/developer/1804081056) |

## What reviewers say

### Learn to write letters

[App page](https://appshunter.io/ios/app/learn-to-write-letters/id1459871532)

**Features:** macOS Compatibility

**In-app purchases:** none


### Omnidu

[App page](https://appshunter.io/ios/app/omnidu/id6444656866)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Learn to write letters free?

Learn to write letters costs $2.99, with no in-app purchases.

### Is Omnidu free?

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

### Do Learn to write letters or Omnidu have ads?

Neither Learn to write letters nor Omnidu shows ads.

### Which is updated more often, Learn to write letters or Omnidu?

Learn to write letters ships an update every 14 months, and Omnidu every 6 weeks. Most recently, Learn to write letters was updated on October 26, 2026 and Omnidu on October 25, 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.*