Comparison

Sumdog vs Intellect Plus

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

Intellect Plus

Features
Read full description

Brain food, not brain rot. Intellect Plus is a calm, swipeable feed of the most interesting things humans know: history, science, space, art, ideas, nature, cultures, music and more. Every card is a short, well-written story you can read in under a minute, with its sources named. When something grabs you, go deeper: every card has a five-minute read behind it. A FEED THAT'S GOOD FOR YOU • Thousands of cards across 18 subjects, with new ones every day • Short hooks that reveal at reading pace, and a longer read when you want it • Every card credits its sources, from encyclopaedias to museums and science bodies • Talks and explainers from hand-picked educational channels, right in the feed • Your feed learns what you enjoy, privately, on your phone EXERCISE YOUR MIND • Thousands of original challenges: maths, logic, patterns, words, spelling, memory, attention and estimation • Every answer explained, so you learn something whether you're right or not • Challenges appear every so often as you read, or play as many as you like in Challenges • Difficulty adapts to you: easy when you're warming up, harder as you improve WATCH YOURSELF GET SHARPER • Intellect IQ: your demonstrated reasoning level, from the challenges you solve • Intellect Power: everything you've learned and accomplished, growing with every card you read and every challenge you take on • See your strengths by area, your streak and your badges • Intellect IQ reflects your performance across Intellect's reasoning challenges. It isn't a clinical or standardised IQ test. MADE FOR CURIOUS PEOPLE • Read aloud: have each card read to you in a natural voice, made on your device • Auto-scroll: sit back and let the feed move on when each card is done • Save cards for later, share a beautiful picture of any card, and join the conversation in the comments • No account needed. Sign in only if you want your progress on every device. No outrage, no endless noise. Just the good stuff, one card at a time.

Screenshots

Sumdog4 screens
Intellect Plus4 screens

Verdict

The call

The clearest difference is in-app purchases: Intellect Plus at none against Sumdog's 1. Intellect Plus also leads on update cadence (every 8 days vs every 2 months). On price, ads, device support and iOS requirement 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. Intellect Plus asks for nothing beyond the download.

UpkeepUpdate frequency

Sumdog ships an update every 2 months, Intellect Plus every 8 days. Both last shipped on November 6, 2026.

Scorecard2 real differences · 8 level
Sumdog versus Intellect Plus: the parameters behind the verdict, then further details
ParameterSumdogIntellect Plus
PriceFreeFree
Rating4.2 (1.6K ratings) — better—
Positive reviews63.7% of reviews—
Number of ratings1.6K — better—
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size135 MB47 MB
Age rating4+12+
DeveloperSumdog Ltd.Vaitly Limited

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

Intellect Plus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Sumdog

Subscriptions1
  • Family Membership7 Days trial$8.991 Month
None

Intellect Plus

No in-app purchases

Questions

Is Sumdog free?
Sumdog is free to download, with in-app purchases available.
Is Intellect Plus free?
Intellect Plus is free to download, with no in-app purchases.
Do Sumdog or Intellect Plus have ads?
Neither Sumdog nor Intellect Plus shows ads.
Which is updated more often, Sumdog or Intellect Plus?
Sumdog ships an update every 2 months, and Intellect Plus every 8 days. Most recently, Sumdog was updated on November 6, 2026 and Intellect Plus on November 6, 2026.

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