# Sumdog vs TurtleDiary

The clearest difference is rating: Sumdog at 4.2 against TurtleDiary's 3.1. Sumdog also leads on review sentiment (64% vs 29%) and ratings volume (1.6K vs 55). TurtleDiary's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Sumdog sells 1 in-app purchase, starting at $8.99 per month and TurtleDiary sells 9 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Sumdog holds the better App Store score, 4.2 against 3.1. That said, the two scores are not equally well evidenced: Sumdog has 1.6K ratings behind it against 55, 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 29% of TurtleDiary's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Sumdog | TurtleDiary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (1.6K ratings)](https://appshunter.io/ios/app/sumdog/id1145809959/reviews)** | [3.1 (55 ratings)](https://appshunter.io/ios/app/turtlediary/id1154882234/reviews) |
| Number of ratings | **1.6K** | 55 |
| Positive reviews | **63.7% of reviews** | 29.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 135 MB | 306 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sumdog Ltd.](https://appshunter.io/developer/644331332) | [TurtleDiary LLC](https://appshunter.io/developer/1036119438) |

## 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


### TurtleDiary

[App page](https://appshunter.io/ios/app/turtlediary/id1154882234)

Interactive educational games, videos, quizzes, and worksheets for K-5 students. Covers math, language, typing, science, and geography to enhance classroom success and retention.

**Highlights:** 500+ educational games, 350+ learning videos, 500+ online quizzes, Interactive math games, Language and art games, Typing lessons, Multiplayer games

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Turtlediary Family Monthly Subscription | $5.99 | per month |
| Turtlediary Enterprise Monthly Subscription | $29.49 | per month |
| Turtlediary Family Annual Subscription | $49.99 | per year |
| Annual Parent Membership | $69.99 | per year |
| Turtlediary Enterprise Annual | $79.99 | per year |
| Turtlediary Enterprise Annual | $189.99 | per year |
| Annual Teacher Membership | $199.99 | per year |
| Turtlediary Family Annual | $69.99 | one-time |
| TurtleDiary Teacher Annual | $199.99 | one-time |


## Frequently asked questions

### Is Sumdog free?

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

### Is TurtleDiary free?

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

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

Sumdog is rated higher. Sumdog averages 4.2 out of 5 from 1.6K ratings, while TurtleDiary averages 3.1 from 55 ratings.

### Do Sumdog or TurtleDiary have ads?

Neither Sumdog nor TurtleDiary shows ads.

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

Sumdog ships an update every 2 months, and TurtleDiary every 2 months. Most recently, Sumdog was updated on November 11, 2026 and TurtleDiary 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.*