# Bubble Maths Lite vs Sumdog

The clearest difference is in-app purchases: Bubble Maths Lite at none against Sumdog's 1. Bubble Maths Lite also leads on review sentiment (80% vs 64%) and iOS requirement (12.0 vs 15.0). Sumdog's advantage is update cadence (every 2 months vs every 16 months) and ratings volume (1.6K vs 190). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sumdog sells 1 in-app purchase, starting at $8.99 per month. Bubble Maths Lite asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for Bubble Maths Lite against 4.2 for Sumdog. That said, the two scores are not equally well evidenced: Sumdog has 1.6K ratings behind it against 190, so its average is the more settled of the two. Written reviews are what separate them: 80% of Bubble Maths Lite's written reviews are positive against 64% of Sumdog's.

Bubble Maths Lite ships an update every 16 months, Sumdog every 2 months. The most recent releases landed on August 27, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Bubble Maths Lite | Sumdog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (190 ratings)](https://appshunter.io/ios/app/bubble-maths-lite/id588198778/reviews)** | [4.2 (1.6K ratings)](https://appshunter.io/ios/app/sumdog/id1145809959/reviews) |
| Number of ratings | 190 | **1.6K** |
| Positive reviews | **80.0% of reviews** | 64.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 134 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dizzy Squirrel Limited](https://appshunter.io/developer/587374273) | [Sumdog Ltd.](https://appshunter.io/developer/644331332) |

## What reviewers say

### Bubble Maths Lite

[App page](https://appshunter.io/ios/app/bubble-maths-lite/id588198778)

This application challenges users with a series of math problems, progressing from basic sums to more complex addition and subtraction. Earn stars for correct answers and unlock new levels as you master each stage. Designed for children aged 5 and up, it offers a fun way to practice foundational math skills.

**Highlights:** Maths skill testing, Addition and subtraction problems, 25 questions per level, Star rewards for correct answers, Unlockable progressive levels, Suitable for ages 5+

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

**In-app purchases:** none


### Sumdog

[App page](https://appshunter.io/ios/app/sumdog/id1145809959)

This app offers personalized math and spelling practice for children aged 5-14 through engaging games and adaptive learning. It uses diagnostic tests to tailor learning journeys and provides virtual rewards to motivate students. Parents can set up accounts for home use or connect to school-assigned work.

**Highlights:** Personalized adaptive learning, Engaging single and multiplayer games, Thousands of standards-aligned questions, Virtual coin rewards system, 3D avatar and house personalization, Diagnostic assessment

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Family Membership | $8.99 | per month |

**What reviewers like**

- 🎮 Fun and engaging games
- 🏆 Competitive leaderboards
- 🏠 Customizable avatar and house
- 📚 Helps with learning math, spelling, and grammar
- 🏫 Useful for schools and teachers

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🕰️ Slow loading times
- 🔒 Limited access to premium features without subscription
- 🤖 Weird or unappealing 3D character models
- 🔍 Lack of instructions for some games

**Reported bugs**

- Flower Defenders game not working properly
- Goalz game not registering shots correctly
- Sudden logout issues
- Incompatibility with certain devices or browsers

**Requested features**

- Add more free games
- Bring back old 2D games
- Allow interaction with house and garden items
- Improve multiplayer functionality
- Add more customization options for avatar and house


## Frequently asked questions

### Is Bubble Maths Lite free?

Bubble Maths Lite is free to download, with no in-app purchases.

### Is Sumdog free?

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

### Which has better reviews, Bubble Maths Lite or Sumdog?

Bubble Maths Lite is rated higher. Bubble Maths Lite averages 4.3 out of 5 from 190 ratings, while Sumdog averages 4.2 from 1.6K ratings.

### Do Bubble Maths Lite or Sumdog have ads?

Neither Bubble Maths Lite nor Sumdog shows ads.

### Which is updated more often, Bubble Maths Lite or Sumdog?

Bubble Maths Lite ships an update every 16 months, and Sumdog every 2 months. Most recently, Bubble Maths Lite was updated on August 27, 2026 and Sumdog on September 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.*