# LetterSchool vs Osmo ABCs

The clearest difference is rating: LetterSchool at 4.5 against Osmo ABCs's 3.7. LetterSchool also leads on review sentiment (55% vs 19%) and ratings volume (17K vs 266). Osmo ABCs's advantage is in-app purchases (none vs 14). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. LetterSchool sells 14 in-app purchases, starting at $4.99 per month. Osmo ABCs asks for nothing beyond the download.

LetterSchool holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: LetterSchool has 17K ratings behind it against 266, so its average is the more settled of the two. Written reviews point the same way: 55% of LetterSchool's written reviews are positive against 19% of Osmo ABCs's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | LetterSchool | Osmo ABCs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (17K ratings)](https://appshunter.io/ios/app/letterschool-learn-to-write/id481067676/reviews)** | [3.7 (266 ratings)](https://appshunter.io/ios/app/osmo-abcs/id1439615379/reviews) |
| Number of ratings | **17K** | 266 |
| Positive reviews | **54.8% of reviews** | 18.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 158 MB | 843 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Letterschool Enabling Learning B.V.](https://appshunter.io/developer/1133082101) | [Tangible Play](https://appshunter.io/developer/799157444) |

## What reviewers say

### LetterSchool

[App page](https://appshunter.io/ios/app/letterschool-learn-to-write/id481067676)

This app helps young children learn to write letters, numbers, and shapes through interactive tracing and spelling games. It offers progress tracking and engaging animations to make learning fun and effective for toddlers and preschoolers.

**Highlights:** Block and cursive letter tracing, Uppercase and lowercase letters, Number tracing (1-10), Geometric shape tracing, Word spelling and phonics, Progress tracking for multiple players, Interactive animations and sound effects

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access Pass | $4.99 | per month |
| LetterSchool - Monthly Pass | $9.99 | per month |
| Monthly Access Pass | $9.99 | per month |
| Quarterly Access Pass | $12.99 | per 3 months |
| LetterSchool - Monthly Pass | $14.99 | per month |
| Quarterly Access Pass | $19.99 | per 3 months |
| Annual Access Pass | $44.99 | per year |
| LetterSchool - Annual Pass | $59.99 | per year |
| Yearly Access Pass | $59.99 | per year |
| LetterSchool - Annual Pass | $74.99 | per year |
| Unlock All Shapes | $2.99 | one-time |
| Unlock Full Block Alphabet | $6.99 | one-time |
| Unlock Full Cursive Alphabet | $6.99 | one-time |
| All-in-one Package | $79.99 | one-time |

**What reviewers like**

- 👍 Engaging and interactive
- 🚀 Helps improve handwriting
- 💡 Supports multiple writing styles (print, cursive, d'nealian)
- 👍 Motivating with rewards and animations
- 👍 Useful for children with learning challenges

**What reviewers complain about**

- 🐛 Subscription issues (app reverts to lite version, need to restore purchases)
- 🐛 Glitches and crashes (especially with Dari letters)
- 💰 Expensive subscription model
- 🔍 Limited free version
- 🔍 Inconsistent letter formation (not aligned with school standards)

**Reported bugs**

- Dari letter (پ) keeps glitching
- Subscription issues (app reverts to lite version, need to restore purchases)
- Incompatibility with older devices
- Login screen freezes

**Requested features**

- Add more languages (Russian, Serbian, Thai, Korean, Hebrew, Hindi, etc.)
- Allow creating custom words/names to practice
- Improve letter sound pronunciations
- Add more visual options (fonts, themes, etc.)
- Integrate with International Phonetic Alphabet


### Osmo ABCs

[App page](https://appshunter.io/ios/app/osmo-abcs/id1439615379)

Engage young learners in a hands-on adventure to build pre-reading skills. Through interactive play with a friendly monster, children develop confidence in letter recognition, phonics, and vocabulary. This app requires physical Osmo pieces and a compatible iPhone or iPad.

**Highlights:** Letter recognition, Phonics learning, Vocabulary building, Over 300 words, Hands-on play, Interactive adventure

**In-app purchases:** none

**What reviewers like**

- 😃 Amazing game
- 💖 Love it so much
- ✨ So much fun
- 👍 Great app for kids
- 💯 Everything is spot on

**What reviewers complain about**

- ❌ Not compatible with iPad Pro
- ❌ Not receiving verification code
- ❌ Faulty readings
- ❌ Unusable like this
- ❌ Not playable

**Reported bugs**

- Not compatible with iPad Pro
- Not receiving verification code
- Faulty readings (wrong tile detection)
- Camera orientation issues on newer iPads
- App won't open for some users

**Requested features**

- Update app for newer iPads
- Fix ABC game redirection to App Store
- Fix audio issues


## Frequently asked questions

### Is LetterSchool free?

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

### Is Osmo ABCs free?

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

### Which has better reviews, LetterSchool or Osmo ABCs?

LetterSchool is rated higher. LetterSchool averages 4.5 out of 5 from 17K ratings, while Osmo ABCs averages 3.7 from 266 ratings.

### Do LetterSchool or Osmo ABCs have ads?

Neither LetterSchool nor Osmo ABCs shows ads.

### Which is updated more often, LetterSchool or Osmo ABCs?

LetterSchool ships an update every 2 months, and Osmo ABCs every 2 months. Most recently, LetterSchool was updated on November 1, 2026 and Osmo ABCs 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.*