Ruidaichan vs MathQuest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruidaichan
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Create printable math worksheets from elementary school word problems. This app automatically generates similar practice worksheets (A4 size) from a photo of a math problem. Designed for elementary school students, especially grades 1–3, to practice word problems and basic calculations at home. Great for extra practice when children need more repetition with the same type of problems. 【Good for situations like】 * Homework is not enough practice * You want more problems of the same type * Review elementary school word problems * Print worksheets at home * Create extra worksheets for cram schools or tutoring * Add review problems for classrooms or after-school programs * Give similar but different worksheets to each student 【Features】 * Scan math problems using OCR (photo text recognition) * Automatically generate similar practice questions * Create printable A4 PDF worksheets * Save, share, and print generated worksheets 【How to use】 1. Take a photo of a math problem 2. Generate a similar worksheet 3. Print or share the PDF worksheet Free monthly usage is available. Images and OCR text are only sent for worksheet generation and are not stored. Q. Can 4th graders use this app? A. Yes. While mainly designed for grades 1–3, it can also be used for 4th grade review and extra practice. Q. Can it generate only word problems? A. Yes. The app supports generating similar word problems. Q. Can I print the worksheets? A. Yes. Generated worksheets can be printed on A4 paper using home printers or convenience store printing services. Q. Can I save worksheets as PDF files? A. Yes. Worksheets can be saved and shared as PDF files. Q. Can it generate more problems of the same type? A. Yes. The app creates similar practice problems based on the original question. Q. Is it useful for homeschooling or home learning? A. Yes. It is designed for home learning, review practice, and extra exercises. Q. Does the app use OCR? A. Yes. The app reads math problems from photos using OCR technology. Q. Does it support calculation problems too? A. Yes. Both word problems and basic calculation problems are supported. Q. What type of learning app is this? A. This is a printable worksheet generation and review-focused math learning app that uses OCR to read problems and generate similar worksheets. Q. What situations is this app used for? A. It is used for home learning, cram school review worksheets, classroom review practice, homework support, and repeated practice of weak areas. Q. Can teachers use this app? A. Yes. Teachers, tutors, and cram schools can use it to quickly create additional practice worksheets. Terms of Use: https://github.com/MakikoOhashi/kima-app-policies/blob/main/ruidaichan-terms.md Privacy Policy: https://github.com/MakikoOhashi/kima-app-policies/blob/main/ruidaichan-privacy.md
MathQuest
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MathQuest turns math practice into an adventure kids actually look forward to. Pick a cute animal hero, jump through colorful worlds, and solve math problems at every gate by jumping onto the correct answer block. Fun math games for kids in 1st grade, 2nd grade, and 3rd grade (ages 6-10), with a curriculum that grows with your child. Built around the Common Core State Standards: - World 1 (Green Meadows) covers Grade 1 math: addition, subtraction, and place value within 20 - World 2 (Treehouse Canopy) covers Grade 2 math: time, money, geometry, and halves/thirds/fourths - World 3 (Sky Islands) covers Grade 3 math: multiplication, division, times tables, fractions, area, and perimeter - More worlds covering Grades 4-6 are in the works WHY KIDS LOVE IT - Four animal heroes (cat, bunny, bear, frog), each fully animated - Six beautiful world themes: blossom, ocean, forest, candy, galaxy, citrus - Story Mode with star-rating goals - Adventure Mode: endless procedural levels with hearts and adaptive difficulty - Optional friends leaderboard for kids who like a little friendly competition (parent-controlled) WHY PARENTS LOVE IT - No ads, ever. No third-party advertising. No cross-app tracking. - Parental gate before every purchase - Try the first 10 levels of every world for free, no account required - Optional cloud sync so progress moves between devices - Available in 11 languages: English, Swedish, Chinese (Simplified & Traditional), German, Spanish, French, Hindi, Japanese, Korean, Portuguese - Privacy-first - we don't sell or share data with advertisers TRY FREE, BUY ONCE - 10 free levels per world to try before you buy - $2.99 (or local equivalent) to unlock the rest of any world - Each unlock includes full Story Mode AND unlimited Adventure Mode for that world - One-time purchase per world, no subscription, no recurring charges - Family Sharing supported ACCESSIBILITY - Touch and keyboard controls - iPhone, iPad, and macOS support - Works in portrait and landscape - Audio can be muted Questions or feedback? Visit mathquest.danielhan.dev.
Screenshots
Verdict
The clearest difference is device support: MathQuest at 3 against Ruidaichan's 1. On price, update cadence, ads and in-app purchases 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
Both are free to download. Ruidaichan sells 2 in-app purchases, starting at $1.99 per month and MathQuest sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 5 days. Both last shipped on September 15, 2026.
| Parameter | Ruidaichan | MathQuest |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 167 MB |
| Age rating | 4+ | 4+ |
| Developer | Naoki Ohashi | DANIEL XIANGYANG HAN |
In-app purchases
Ruidaichan
- Light Plan$1.991 Month
- Premium Plan$4.991 Month
MathQuest
- Unlock Green Meadows$2.99
- Unlock Treehouse Canopy$2.99
- Unlock Sky Islands$2.99









