# Sumdog vs NumBots

The clearest difference is rating: NumBots at 4.7 against Sumdog's 4.2. NumBots also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). Sumdog's advantage is ratings volume (1.6K vs 304). On price, review sentiment, update cadence and ads there is nothing between them.

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

NumBots holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Sumdog has 1.6K ratings behind it against 304, so its average is the more settled of the two. Written reviews point the same way: 64% of Sumdog's written reviews are positive against 66% of NumBots's.

Sumdog ships an update every 2 months, NumBots every 5 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sumdog | NumBots |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (1.6K ratings)](https://appshunter.io/ios/app/sumdog/id1145809959/reviews) | **[4.7 (304 ratings)](https://appshunter.io/ios/app/numbots/id1448844836/reviews)** |
| Number of ratings | **1.6K** | 304 |
| Positive reviews | 64.0% of reviews | **66.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 134 MB | 31 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sumdog Ltd.](https://appshunter.io/developer/644331332) | [Maths Circle Ltd](https://appshunter.io/developer/973811325) |

## What reviewers say

### 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


### NumBots

[App page](https://appshunter.io/ios/app/numbots/id1448844836)

This platform helps children master mental addition and subtraction, moving them from counting to calculating. It focuses on building understanding, recall, and fluency in these core math skills. Designed for early learners, it offers an engaging way to achieve mathematical proficiency.

**Highlights:** Master mental addition, Master mental subtraction, Build understanding, Develop recall, Achieve fluency, Transition from counting to calculating

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning math
- 🚀 Fun and engaging
- 💡 Helpful for improving math skills
- 💡 Customizable robot feature
- 👍 Useful for kids aged 4-7

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🔍 Unclear progression system
- ⏱️ Strict time limits
- 🤔 Repetitive levels
- 🤔 Not challenging enough for older kids

**Reported bugs**

- Coins and stars not tracking correctly
- Login issues across devices
- Keyboard not showing up on tablets
- Levels randomly locked or missing
- App crashing and freezing

**Requested features**

- More advanced levels and content
- Ability to skip to appropriate level
- Less emphasis on speed, more on accuracy
- Family account support
- Improved login and persistence


## Frequently asked questions

### Is Sumdog free?

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

### Is NumBots free?

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

### Which has better reviews, Sumdog or NumBots?

NumBots is rated higher. Sumdog averages 4.2 out of 5 from 1.6K ratings, while NumBots averages 4.7 from 304 ratings.

### Do Sumdog or NumBots have ads?

Neither Sumdog nor NumBots shows ads.

### Which is updated more often, Sumdog or NumBots?

Sumdog ships an update every 2 months, and NumBots every 5 weeks. Most recently, Sumdog was updated on September 22, 2026 and NumBots on September 21, 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.*