Comparison

Lumi Math Planet vs Mathgotchi

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

Head to head
About

Lumi Math Planet

Features
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Optimized for iPhone Duo. Built with the latest SDK, the app fills the entire inner display and automatically adjusts its layout whether the device is folded or open. Math before they can read: 46 picture-based question types, each one read aloud, from counting and addition to times tables, clocks and money. Get one right and a little planet lights up. Wrong answers get no buzzer, only gentle encouragement. Parents can follow progress across five skill areas, practice weak spots and print worksheets with answer keys. No ads, no subscription. A universe your child lights up with their own mind Lumi Math Planet turns math into a warm, cinematic space adventure. Solve a puzzle and a dark little planet flickers to life β€” buildings rise, auroras bloom, and an adorable space friend floats down to say hello. From Glimmer Planet all the way to the Boss Planet, every right answer makes the universe a little more beautiful. No failure. No buzzer. No shame β€” only gentle encouragement. So confidence grows on its own. Children ask to play it. That's the part that changes everything. Crafted to a standard you can feel Every planet has its own glowing personality. Every object is sculpted in warm, clay-style art. Every question is read aloud in a gentle, friendly voice. This isn't a worksheet with a cartoon stapled on top β€” it's a tiny world built with the kind of love you'd want a great teacher to have. Thinking, not just answers β€” contest-grade Most math apps drill speed. Lumi builds minds. Question types cover number patterns, logic, spatial reasoning, simple combinatorics and real word problems. Your child learns to think like a young mathematician, right at the kitchen table. So clear, a child plays before they can read Every single question is visual. Dice, ten-frames, number lines, growing rows, bar charts β€” abstract math becomes a picture you understand at a glance. No memorizing. No guessing. Just real number sense, discovered. From the very first number to contest-grade thinking Addition & subtraction past 100 (with regrouping), multiplication, division, number bonds, place value, comparing, patterns, odd/even, ordinals, time and money β€” 46 question types that level up automatically. Whether it's a pre-reader, a child just starting school, or anyone rebuilding their foundations, everyone begins right at their own level and climbs from there. Growth you can actually see The Parent Zone shows learning across five skill domains, spots weak areas, and opens one-tap focused practice. Export a printable worksheet and a learning report (print it or save a PDF) and carry every milestone with you. 44 interface languages Follows your device language automatically, or pick one in the app. The quiet luxuries No ads. Ever. No data collected β€” nothing ever leaves the device. No account, no login. Every outbound tap sits behind a parent gate. One promise, kept: a single one-time in-app purchase. No subscription, no nagging. Start without buying with your first planet and the daily challenge; unlock the whole galaxy whenever you're ready. Blast off β€” and watch your child build a universe that runs on what they just learned. Optimized for iPhone Duo.

About

Mathgotchi

Features
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"Crafted with love by a father for his two children who struggled with clocks and disliked studying." No matter how many times clock hands were explained, the kids couldn't grasp the concept, easily lost focus, and dreaded worksheets... Now, by rotating interactive clock hands, solving arithmetic on screen, and nurturing animal companions (Mathgotchi), they discovered the joy of learning! Give your child a delightful first math adventure they look forward to exploring every day without being pushed. -------------------------------------------------- [ 5 Special Learning Playgrounds of Mathgotchi ] 1. Built-in Smart Scratchpad: Solve on Screen, No Paper Needed! - Zero Guesswork: No random guessing! Kids write down their full thought process directly on screen with a finger or stylus to build genuine problem-solving skills. - Master Core Arithmetic: Step-by-step 1-minute challenges covering addition, subtraction, and visual multiplication tables tailored to young learners. - Seamless Carry-overs & Borrowing: Dedicated scratchpad space for writing carry-overs clearly, turning your device into a mess-free digital workbook anywhere. 2. Hands-on Clock Concepts: From Seconds to Sun & Moon - Gear Mechanics: Feel 60 seconds push the minute hand and 60 minutes lead the hour hand by physically moving hands with touch. - 24 Hours with Sun & Moon: Watch day turn to night and the sun become the moon as hands move, naturally mastering AM/PM and daily rhythms. - Conquering 'Minutes to': Master reading from exact hours to 1-minute increments, including tricky 'minutes before' the hour. 3. Hatching & Evolving Animal Companions (Mathgotchi) - Rewarding Pet Evolution: Like a caterpillar transforming through a cocoon into a butterfly, hatch and evolve mystery animal companions using fruit earned from daily quizzes. - Warm Caring: Deepen bonds and foster pride through gentle warming, winding gears, feeding, and playing together. - Self-Directed Habits: Evolving companion pets as study rewards inspires children to open the app on their own every day. 4. One-of-a-Kind Parent Voice & Photo Cheering Studio - Custom Expressions & Voice Cheers: Playful selfies and heartfelt voice cheers pop up whenever your child gets an answer right or needs encouragement. - Powerful Motivation: Replace generic sound effects with warm parental praise to boost your child's confidence and achievement by 200%. 5. 1-Minute Daily Focus: Speed Quizzes - 1-Minute Focus Challenge: No more boring drills! Short and engaging 1-minute sprints maximize concentration. - Combo Blast Bonus: Experience the thrilling rush of combo bonuses on consecutive correct answers. -------------------------------------------------- [ 3 Guarantees for Complete Parental Peace of Mind ] 1. 100% Ad-Free - Completely free of banner ads and video pop-ups that distract children or lead to unwanted external content. 2. Secure On-Device Privacy - No sign-up required. Recorded parent voices and photos are never sent to external servers and remain stored only on your device. 3. Child-Safe Parental Gate - Secure adult authentication gates prevent accidental in-app purchases or unintended exits to settings screens. -------------------------------------------------- [ Subscription & Support Notice ] - Recommended for use under warm parental guidance for healthy digital screen time and study habits. - Subscriptions automatically renew unless canceled at least 24 hours before the end of the 7-day free trial. Manage or cancel anytime via iOS [Settings] > [Apple ID] > [Subscriptions]. [Customer Support & Inquiries] - Developer: ChronoLab - Email: chrono.lab.sole@gmail.com Start your child's joyful first math adventure with a 7-day free trial today! Terms of Use (EULA): https://www.chronolaboratory.com/terms-mathgotchi.html Privacy Policy: https://www.chronolaboratory.com/privacy-mathgotchi.html

Screenshots

Lumi Math Planet4 screens
Mathgotchi4 screens

Verdict

The call

The clearest difference is iOS requirement: Lumi Math Planet at 15.1 against Mathgotchi's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Lumi Math Planet sells 1 one-off in-app purchase and Mathgotchi sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lumi Math Planet ships an update every 3 days, Mathgotchi every 5 days. Both last shipped on November 7, 2026.

Scorecard1 real difference Β· 5 level
Lumi Math Planet versus Mathgotchi: the parameters behind the verdict, then further details
ParameterLumi Math PlanetMathgotchi
PriceFreeFree
Update frequencyEvery 3 days β€” betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.1 β€” better18.2
Further details β€” not scored
Size56 MB129 MB
Age rating4+4+
DeveloperGuan Feng LaiJaewook Byun

In-app purchases

1 purchases

Lumi Math Planet

One-time1
  • Unlock the Full Galaxy$4.99
1 purchases

Mathgotchi

Subscriptions1
  • Mathgotchi Premium (1 Month)7 Days trial$1.991 Month

Questions

Is Lumi Math Planet free?
Lumi Math Planet is free to download, with in-app purchases available.
Is Mathgotchi free?
Mathgotchi is free to download, with in-app purchases available.
Do Lumi Math Planet or Mathgotchi have ads?
Neither Lumi Math Planet nor Mathgotchi shows ads.
Which is updated more often, Lumi Math Planet or Mathgotchi?
Lumi Math Planet ships an update every 3 days, and Mathgotchi every 5 days. Most recently, Lumi Math Planet was updated on November 7, 2026 and Mathgotchi on November 7, 2026.

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