# Osmo Coding Awbie vs Grammar Ninja

The clearest difference is review sentiment: Grammar Ninja at 100% against Osmo Coding Awbie's 37%. Grammar Ninja also leads on rating (5.0 vs 3.9) and iOS requirement (13.0 vs 15.0). Osmo Coding Awbie's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price, monetization model and device support there is nothing between them.

Both are free to download. Grammar Ninja sells 6 one-off in-app purchases. Osmo Coding Awbie asks for nothing beyond the download.

Grammar Ninja holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Osmo Coding Awbie has 456 ratings behind it against 52, so its average is the more settled of the two. Written reviews point the same way: 37% of Osmo Coding Awbie's written reviews are positive against 100% of Grammar Ninja's.

Osmo Coding Awbie ships an update every 2 months, Grammar Ninja every 8 months. The most recent releases landed on November 9, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Osmo Coding Awbie | Grammar Ninja |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (456 ratings)](https://appshunter.io/ios/app/osmo-coding-awbie/id1067117430/reviews) | **[5.0 (52 ratings)](https://appshunter.io/ios/app/grammar-ninja/id1443711891/reviews)** |
| Number of ratings | **456** | 52 |
| Positive reviews | 37.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 305 MB | 179 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [Greg Lieberman](https://appshunter.io/developer/1596441353) |

## What reviewers say

### Osmo Coding Awbie

[App page](https://appshunter.io/ios/app/osmo-coding-awbie/id1067117430)

This app introduces children to coding through a fun, interactive adventure. Players use physical blocks to program a character's journey, combining tangible play with screen time to learn problem-solving and logic skills.

**Highlights:** Learn coding with physical blocks, Interactive screen-based gameplay, Program character's journey, Develop problem-solving skills, Teaches logic and computational thinking, Hands-on learning experience

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and engaging learning experience
- 💡 Great introduction to coding concepts
- 🚀 Kinetic, hands-on approach
- 🤗 Enjoyable for kids

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- ⚠️ Compatibility issues with newer devices
- 🕰️ Levels completed too quickly
- 🤖 Unreliable image recognition

**Reported bugs**

- App crashes during gameplay
- Coding blocks not recognized properly
- Incorrect path detection and character movement
- Syncing and progress issues across devices

**Requested features**

- More levels and content updates
- Ability to create custom games
- Improved camera support for tablet cases
- Better error handling and troubleshooting


### Grammar Ninja

[App page](https://appshunter.io/ios/app/grammar-ninja/id1443711891)

Engage in a word game where you identify grammatically correct sentences by targeting specific words with ninja stars. Hone your grammar skills to become a master word ninja.

**Highlights:** Target words in sentences, Identify grammatically correct sentences, Improve grammar skills, Word-based ninja game

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Diamonds | $0.99 | one-time |
| 550 Diamonds | $4.99 | one-time |
| 1200 Diamonds | $9.99 | one-time |
| 2500 Diamonds | $19.99 | one-time |
| 5200 Diamonds | $39.99 | one-time |
| 15000 Diamonds | $99.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging gameplay
- 💡 Educational and improves grammar
- 🚀 Great for all ages
- ✨ Visually appealing graphics
- ✅ Easy to use and understand

**What reviewers complain about**

- ↔️ Limited side-to-side movement on iPad

**Requested features**

- Side-to-side movement for iPad


## Frequently asked questions

### Is Osmo Coding Awbie free?

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

### Is Grammar Ninja free?

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

### Which has better reviews, Osmo Coding Awbie or Grammar Ninja?

Grammar Ninja is rated higher. Osmo Coding Awbie averages 3.9 out of 5 from 456 ratings, while Grammar Ninja averages 5.0 from 52 ratings.

### Do Osmo Coding Awbie or Grammar Ninja have ads?

Grammar Ninja shows ads; Osmo Coding Awbie does not.

### Which is updated more often, Osmo Coding Awbie or Grammar Ninja?

Osmo Coding Awbie ships an update every 2 months, and Grammar Ninja every 8 months. Most recently, Osmo Coding Awbie was updated on November 9, 2026 and Grammar Ninja on November 2, 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.*