Comparison

Vimi vs Marble

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

Head to head
About

Vimi

This AI-powered math tutor creates personalized learning paths to help users master math concepts. It offers adaptive lessons, clear explanations, and engaging exercises tailored to school curricula, making learning approachable and fun.

Highlights
  • Personalized learning paths
  • Adaptive lessons
  • Curriculum-aligned content
  • Clear explanations
  • Engaging exercises
  • Instant feedback and solutions
  • Progress tracking
Features
Currently charting
Read full description

Master math with Vimi, your personal AI tutor that makes learning simple, fast, and fun. Vimi figures out your level and designs a personalized path that fits you. You’ll get quick, adaptive lessons that fill in your knowledge gaps and help you feel in control again. Vimi helps you finally feel confident in class with short, engaging lessons built around your school’s curriculum, so every topic you practice matches what you’re learning in school. It’s like having a friendly local tutor who explains things clearly, no confusing terms, just simple explanations that actually make sense. With Vimi, math feels approachable and fun, thanks to a game-like experience that keeps you motivated. Each session includes short exercises that focus on what you need most, instant feedback with helpful hints and full solutions, plus a progress tracker so you can see how far you’ve come. Learn key topics including: Fractions, percentages, equations, inequalities, geometry, functions, probability, statistics, logic, and more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Marble

An interactive world designed to spark children's curiosity into learning through exploration, quests, and problem-solving. It adapts to their interests and learning levels, offering engaging challenges and real-world activity ideas.

Highlights
  • Interactive learning worlds
  • Adaptive quests and challenges
  • Parental progress reports
  • Real-world activity suggestions
  • COPPA compliant
  • Designed for ages 6-12
Features
Read full description

Marble is an interactive world that turns your kid's curiosity into learning. And it never feels like school. They explore worlds, take on quests, make things, solve problems and follow their questions wherever they lead: dinosaurs, space, drawing, music, storms, machines. Marble listens and adapts, so every adventure is built around what your kid cares about. (WHAT YOUR KID GETS) - A living world that grows with their interests and adapts to their level. No passive feed to scroll. - Quests where they build, create, and figure things out - A guide that never runs out of patience for the 677th "why?" question - Challenges that teach them to get stuck, try again, and win (WHAT YOU GET) - A daily note on what they explored and what they're learning - One connected map of their curiosity( skills, interests, breakthroughs) based on the US and UK curriculum standards - Ideas for real-world activities to keep the spark going off-screen - Valuable, active screen time. No passive mindless watching. (BUILT FOR CHILDHOOD) - Designed for kids ages 6–12 - No ads. No algorithmic feed. - COPPA compliant: parents create every account, we don't sell data, and you can review or delete your kid's information anytime - Made by parents who believe technology should be worthy of childhood (BETA) We're building Marble with our community. Join us to give us feedback and help us make Marble great for kids around the world. Questions? Ideas? Your kid would want to ride a whale to reach the next island? We read everything: support@withmarble.com

Screenshots

Vimi4 screens
Marble4 screens

Verdict

The call

The clearest difference is rating: Vimi at 4.5 against Marble's 3.1. Vimi also leads on ratings volume (1K vs 8) and chart position (#95 vs unranked). Marble's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Vimi sells 11 in-app purchases, starting at $19.99 per month. Marble asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Vimi holds the better App Store score, 4.5 against 3.1. That said, the two scores are not equally well evidenced: Vimi has 1K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 58% of Vimi's written reviews are positive against 50% of Marble's.

UpkeepUpdate frequency

Vimi ships an update every 9 days, Marble every 3 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard8 real differences · 3 level
Vimi versus Marble: the parameters behind the verdict, then further details
ParameterVimiMarble
PriceFreeFree
Rating4.5 (1K ratings) — better3.1 (8 ratings)
Positive reviews58.4% of reviews — better50.0% of reviews
Number of ratings1K — better8
Update frequencyEvery 9 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreeFree
Best chart rank#95 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better26.0
Further details — not scored
Size123 MB797 MB
Age rating4+4+
DeveloperVIMI ADAPTIVE LEARNING LTDGenerative Spark Inc

Customer experience

Vimi

All ratings1,005 ratings
Positive88.0%
Neutral2.7%
Negative9.4%
Written reviews113 reviews
Positive58.4%
Neutral9.7%
Negative31.9%

Marble

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews6 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

11 purchases

Vimi

Subscriptions11
  • Vimi Monthly Premium1 Month trial$19.991 Month
  • Vimi Monthly Premium3 Days trial2 variants$19.991 Month
  • summer_promotion1 Month trial$19.991 Month
Show 8 more
  • Vimi Monthly Premium7 Days trial$19.991 Month
  • Vimi monthly Premium$19.991 Month
  • Vimi Monthly Premium1 Month trial$24.991 Month
  • Vimi Quarterly Premium3 Days trial$44.993 Months
  • Vimi 3 months subscription3 Days trial$44.993 Months
  • Vimi Annual Premium3 Days trial$94.901 Year
  • Vimi Premium Annual7 Days trial$154.991 Year
  • Vimi Annual Premium$154.991 Year
None

Marble

No in-app purchases

Questions

Is Vimi free?
Vimi is free to download, with in-app purchases available.
Is Marble free?
Marble is free to download, with no in-app purchases.
Which has better reviews, Vimi or Marble?
Vimi is rated higher. Vimi averages 4.5 out of 5 from 1K ratings, while Marble averages 3.1 from 8 ratings.
Do Vimi or Marble have ads?
Vimi shows ads; Marble does not.
Which is updated more often, Vimi or Marble?
Vimi ships an update every 9 days, and Marble every 3 days. Most recently, Vimi was updated on October 30, 2026 and Marble on October 28, 2026.

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