# ScratchJr vs Math Ninja Dojo

The clearest difference is price: ScratchJr at Free against Math Ninja Dojo's $0.99. ScratchJr also leads on in-app purchases (none vs 5) and review sentiment (67% vs 54%). Math Ninja Dojo's advantage is rating (4.5 vs 3.9). On update cadence, ads and device support there is nothing between them.

ScratchJr is free to download; Math Ninja Dojo costs $0.99 up front. Math Ninja Dojo sells 5 one-off in-app purchases. ScratchJr asks for nothing beyond the download.

Math Ninja Dojo holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 1.9K and 386 respectively. Written reviews complicate that: 67% of ScratchJr's written reviews are positive against 54% of Math Ninja Dojo's, so the app with the better star average is not the one people write more warmly about.

ScratchJr ships an update every 6 months, Math Ninja Dojo every 4 months. The most recent releases landed on November 1, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | ScratchJr | Math Ninja Dojo |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.9 (1.9K ratings)](https://appshunter.io/ios/app/scratchjr/id895485086/reviews) | **[4.5 (386 ratings)](https://appshunter.io/ios/app/math-ninja-dojo-math-for-kids/id1539235296/reviews)** |
| Number of ratings | **1.9K** | 386 |
| Positive reviews | **66.9% of reviews** | 53.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 51 MB | 75 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scratch Foundation, Inc.](https://appshunter.io/developer/1066012912) | [Shining Muffin LLC](https://appshunter.io/developer/1446193687) |

## What reviewers say

### ScratchJr

[App page](https://appshunter.io/ios/app/scratchjr/id895485086)

This app allows young children to create their own interactive stories and games by snapping together graphical programming blocks. It fosters problem-solving, creative expression, and develops early numeracy and literacy skills in a fun, motivating context.

**Highlights:** Program interactive stories, Create games, Snap-together programming blocks, Develop problem-solving skills, Foster creative expression, Learn coding fundamentals

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use for kids
- 🚀 Great for coding and creating animations
- 💡 Allows customization of characters and backgrounds
- ⭐ Fun and engaging for young users

**What reviewers complain about**

- 🐛 Glitchy drawing/editing tools
- 🔧 Limited number of frames/scenes per project
- 🎨 Lack of color options and customization
- 🔊 Poor audio quality and limited sound options

**Reported bugs**

- Freezing and crashing issues
- Incorrect character movements and positioning
- Saving and loading problems
- Microphone and recording bugs

**Requested features**

- Add more frames/scenes per project
- Improve drawing/editing tools
- Expand color and customization options
- Enhance audio features and sound library
- Integrate with the full Scratch platform


### Math Ninja Dojo

[App page](https://appshunter.io/ios/app/math-ninja-dojo-math-for-kids/id1539235296)

This educational game helps children improve their math skills through fast-paced challenges. Players practice addition, subtraction, multiplication, and division with engaging exercises and customizable difficulty. It offers a fun way to build confidence and master math concepts.

**Highlights:** Addition, subtraction, multiplication, division practice, Engaging exercises and colorful challenges, Customizable difficulty and operations, High score tracking, No ads or distractions

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skip x10 | $0.99 | one-time |
| Timer x20 | $0.99 | one-time |
| Bomb x5 | $0.99 | one-time |
| Retry x5 | $0.99 | one-time |
| Pro Version | $1.99 | one-time |

**What reviewers like**

- 👍 Helps kids learn
- 👍 Kids loved it
- 👍 Teaches kids well
- 👍 Good game

**What reviewers complain about**

- 🤔 Math equations too hard
- 🤔 Missing decimal answers
- 🤔 No age options
- 🤔 Multiplication/division too early
- 🤔 Needs regrouping for addition/subtraction

**Reported bugs**

- 🐛 Missing 4.5 as an answer option
- 🐛 Incorrect answer options for basic division
- 🐛 Unclear math problems (e.g., 'something / something')

**Requested features**

- Option for age-specific content
- Regrouping for addition and subtraction


## Frequently asked questions

### Is ScratchJr free?

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

### Is Math Ninja Dojo free?

Math Ninja Dojo costs $0.99, and also offers in-app purchases.

### Which has better reviews, ScratchJr or Math Ninja Dojo?

Math Ninja Dojo is rated higher. ScratchJr averages 3.9 out of 5 from 1.9K ratings, while Math Ninja Dojo averages 4.5 from 386 ratings.

### Do ScratchJr or Math Ninja Dojo have ads?

Neither ScratchJr nor Math Ninja Dojo shows ads.

### Which is updated more often, ScratchJr or Math Ninja Dojo?

ScratchJr ships an update every 6 months, and Math Ninja Dojo every 4 months. Most recently, ScratchJr was updated on November 1, 2026 and Math Ninja Dojo on October 22, 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.*