Sumdog vs Polymath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sumdog
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.
- Personalized adaptive learning
- Engaging single and multiplayer games
- Thousands of standards-aligned questions
- Virtual coin rewards system
- 3D avatar and house personalization
- Diagnostic assessment
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Make learning fun with Sumdog! Sumdog delivers highly engaging personalized practice for math and spelling, both in-school and at home. Suitable for children aged 5-14, our adaptive learning games and online rewards motivate children to learn and encourages regular practice. When children first use Sumdog, we run a short diagnostic test to provide a snapshot of their learning and areas for development. Our adaptive learning engine then uses the outcomes of the diagnostic to ensure each child’s starting point on Sumdog is at the right level. From this point, our sophisticated adaptive algorithms create a personalized learning journey based for each child based on their progress. - Over 30 engaging single and multiplayer games - Thousands of standards-aligned questions designed to consolidate and extend in-class learning - Virtual coin rewards to motivate children to learn - A 3D avatar, house and garden for children to personalize “I never thought an online program could do so much in such short bursts of time.” D. Hendershot, West Elementary, Kansas, US. Account set-up If your child has an account from school: Your child can log in with their details from their school. They’ll then be able to access any work that has been set by their teachers. If your child does not have an account from school: In the Sumdog app, parents can purchase a family plan covering up to 3 children. Once you’ve done this, you’ll create logins for your child to use the app. This gives them access to Sumdog’s games, and thousands of math, spelling and grammar questions. Subscription details: Your subscription starts with a free trial period and then changes to a subscription from $8.99 per month. No commitment period. Download the app and get started today! The amount will be deducted automatically every month via your Apple account. As long as the "Automatic renewal" feature is not disabled via the Apple account settings on your device, the subscription will automatically renew every month no later than 24 hours before your subscription period expires. Sumdog Terms: https://learn.sumdog.com/en-us/about-us/terms-of-use Sumdog Privacy: https://learn.sumdog.com/en-us/about-us/privacy-policy
Polymath
This app makes learning math fun for kids by allowing them to unlock worlds and interact with characters as they improve their skills. It offers personalized learning paths and weekly progress reports for parents.
- Personalized math learning algorithm
- Unlockable game worlds
- In-world character interaction
- Weekly parent progress reports
- Adaptive learning pace
- Builds math confidence
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Want to learn maths while having fun? Polymath is a fun world where kids love to practice maths! Kids can unlock worlds and talk to in-world characters as they level up their maths skills. Polymath is perfect for kids who excel at maths and those who struggle, Polymath builds confidence in every child. Polymath is the only maths app that teaches at the pace your child learns whilst also making maths fun. Here’s how Polymath is loved by kids around the world: - It’s personalised: our algorithm learns how your child learns and gives them the questions they’re ready to see, when they’re ready! - It’s fun and engaging: learning should be fun and maths can be too hard for too many kids, our mission is to change that! Polymath is also dedicated to our PARENTS! We believe parents are SO important when it comes to children’s education journeys. That’s why you'll get weekly reports on your child's learning where you can see how your child is progressing, and help support them. Help your child build a love of mathematics today! Read the terms of use here https://polymath.how/terms Read the privacy policy here https://polymath.how/privacy
Screenshots
Verdict
The clearest difference is rating: Polymath at 5.0 against Sumdog's 4.2. Polymath also leads on review sentiment (100% vs 64%). Sumdog's advantage is ads (none vs shown) and ratings volume (1.6K vs 2). On price, in-app purchases, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sumdog sells 1 in-app purchase, starting at $8.99 per month and Polymath sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Polymath holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Sumdog has 1.6K ratings behind it against 2, 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 100% of Polymath's.
Sumdog ships an update every 2 months, Polymath every 4 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Sumdog | Polymath |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (1.6K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 63.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.6K — better | 2 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 135 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Sumdog Ltd. | Celadon AI Limited |
Customer experience
Sumdog
Polymath
Bugs and requests
Sumdog
Reported bugs
4 issues- Flower Defenders game not working properly
- Goalz game not registering shots correctly
- Sudden logout issues
- Incompatibility with certain devices or browsers
Requested features
5 requests- 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
Polymath
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sumdog
- Family Membership7 Days trial$8.991 Month
Polymath
- Polymath+17 Days trial$4.991 Month
Questions
Is Sumdog free?
Is Polymath free?
Which has better reviews, Sumdog or Polymath?
Do Sumdog or Polymath have ads?
Which is updated more often, Sumdog or Polymath?
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