Comparison

Sumdog vs Kai's Eye Robot Tracker

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

Head to head
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

About

Kai's Eye Robot Tracker

This app allows users to track and code Kai robots on a special mat. It brings coding to life through augmented and virtual reality, enabling users to complete missions and learn programming concepts.

Highlights
  • Track Kai robots on a mat
  • Code robots to drive
  • Augmented Reality visualization
  • Virtual Reality visualization
  • Complete coding missions
Features
Read full description

The Kai's Eye app is used to track your Kai robots on the mat included with your KaiLab (formerly Kai's Clan) pack. For further information on how to use Kai's Eye, refer to this link https://kaiseducation.com/kailab-support/ Code Kai robots to drive around the themed mats to complete missions and watch your code come to life with Augmented or Virtual Reality. Have fun and keep on coding!

Screenshots

Sumdog4 screens
Kai's Eye Robot Tracker4 screens

Verdict

The call

The clearest difference is rating: Sumdog at 4.2 against Kai's Eye Robot Tracker's 2.3. Sumdog also leads on ratings volume (1.6K vs 3). Kai's Eye Robot Tracker's advantage is in-app purchases (none vs 1) and review sentiment (80% vs 64%). On price, update cadence, 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. Kai's Eye Robot Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sumdog holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: Sumdog has 1.6K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 64% of Sumdog's written reviews are positive against 80% of Kai's Eye Robot Tracker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sumdog ships an update every 2 months, Kai's Eye Robot Tracker every 6 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Sumdog versus Kai's Eye Robot Tracker: the parameters behind the verdict, then further details
ParameterSumdogKai's Eye Robot Tracker
PriceFreeFree
Rating4.2 (1.6K ratings) — better2.3 (3 ratings)
Positive reviews63.7% of reviews80.0% of reviews — better
Number of ratings1.6K — better3
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size135 MB312 MB
Age rating4+4+
DeveloperSumdog Ltd.Kai's Education Limited

Customer experience

Sumdog

All ratings1,556 ratings
Positive78.3%
Neutral4.9%
Negative16.8%
Written reviews361 reviews
Positive63.7%
Neutral10.5%
Negative25.8%

Kai's Eye Robot Tracker

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

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

Kai's Eye Robot Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Sumdog

Subscriptions1
  • Family Membership7 Days trial$8.991 Month
None

Kai's Eye Robot Tracker

No in-app purchases

Questions

Is Sumdog free?
Sumdog is free to download, with in-app purchases available.
Is Kai's Eye Robot Tracker free?
Kai's Eye Robot Tracker is free to download, with no in-app purchases.
Which has better reviews, Sumdog or Kai's Eye Robot Tracker?
Sumdog is rated higher. Sumdog averages 4.2 out of 5 from 1.6K ratings, while Kai's Eye Robot Tracker averages 2.3 from 3 ratings.
Do Sumdog or Kai's Eye Robot Tracker have ads?
Neither Sumdog nor Kai's Eye Robot Tracker shows ads.
Which is updated more often, Sumdog or Kai's Eye Robot Tracker?
Sumdog ships an update every 2 months, and Kai's Eye Robot Tracker every 6 weeks. Most recently, Sumdog was updated on November 6, 2026 and Kai's Eye Robot Tracker on November 3, 2026.

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