Print Exercise for Arithmetic vs Ruidaichan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Print Exercise for Arithmetic
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It is an application that prints arithmetic exercise sheet. You can randomly create and print questions according to the set conditions. You can also select and print a pre-registered workbook. Registered workbooks will be updated automatically.
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
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Verdict
The clearest difference is in-app purchases: Print Exercise for Arithmetic at none against Ruidaichan's 2. Print Exercise for Arithmetic also leads on device support (3 vs 1). Ruidaichan's advantage is ads (none vs shown) and update cadence (every 5 days vs every 5 weeks). On price 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
Both are free to download. Ruidaichan sells 2 in-app purchases, starting at $1.99 per month. Print Exercise for Arithmetic asks for nothing beyond the download.
Print Exercise for Arithmetic ships an update every 5 weeks, Ruidaichan every 5 days. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.
| Parameter | Print Exercise for Arithmetic | Ruidaichan |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 14 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuhisa Kobayashi | Naoki Ohashi |
In-app purchases
Print Exercise for Arithmetic
No in-app purchases
Ruidaichan
- Light Plan$1.991 Month
- Premium Plan$4.991 Month
Questions
Is Print Exercise for Arithmetic free?
Is Ruidaichan free?
Do Print Exercise for Arithmetic or Ruidaichan have ads?
Which is updated more often, Print Exercise for Arithmetic or Ruidaichan?
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