Comparison

Bubble Maths Lite vs Sumdog

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bubble Maths Lite

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
Read full description

This app will test your maths skills, starting with simple sums through to more complex addition and subtraction. There are 25 questions per level. For every correct answer you get a star, with the aim to get all 25 correct. Complete one level to unlock further levels until you have completed them all. This app is great for children and adults alike but all of the questions are based around Key Stage 1 and 2 style questions so great for children 5+ years. Are you a maths expert and can you get all of the stars?

About

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.

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
Read full description

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

Screenshots

Bubble Maths Lite4 screens
Sumdog4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Bubble Maths Lite versus Sumdog: the parameters behind the verdict, then further details
ParameterBubble Maths LiteSumdog
PriceFreeFree
Rating4.3 (190 ratings) — better4.2 (1.6K ratings)
Positive reviews80.0% of reviews — better64.0% of reviews
Number of ratings1901.6K — better
Update frequencyEvery 16 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size7 MB134 MB
Age rating4+4+
DeveloperDizzy Squirrel LimitedSumdog Ltd.

Customer experience

Bubble Maths Lite

All ratings190 ratings
Positive80.0%
Neutral10.0%
Negative10.0%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Sumdog

All ratings1,553 ratings
Positive78.3%
Neutral4.9%
Negative16.8%
Written reviews353 reviews
Positive64.0%
Neutral10.2%
Negative25.8%

Bugs and requests

Bubble Maths Lite

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Bubble Maths Lite

No in-app purchases

1 purchases

Sumdog

Subscriptions1
  • Family Membership7 Days trial$8.991 Month

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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