Comparison

Clock Worksheet Maker vs Ruidaichan

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

Head to head
About

Clock Worksheet Maker

Instantly generate practice worksheets for telling time and elapsed time. Offers various problem formats from beginner to advanced, with options to adjust difficulty and export as PDF. Ideal for home study, tutoring, and classroom use.

Highlights
  • Generate analog and digital clock reading practice
  • Elapsed time and time word problem formats
  • Adjustable problem count, columns, and types
  • Export and print worksheets as PDF
  • Answer sheet generation
  • Unlimited practice with Pro subscription
Features
Read full description

Clock Worksheet Maker is an app for instantly generating practice worksheets focused on reading clocks. Whether for home study, tutoring, or classroom materials, it has you covered. Reading clocks is a foundational skill that connects math with everyday life. This app offers a wide range of problem formats so learners can build up gradually from beginner to advanced. With just a few taps, you can generate a worksheet and save or print it as a PDF. ■ Main Features (10 problem types) • Analog clock reading (on the hour / 5-minute / 1-minute steps) • Time Words — pick the natural Japanese expression (e.g. "o'clock", "half past") • Match analog and digital clocks • Digital → Analog (draw the hands yourself) • 24-hour ⇄ 12-hour conversion • Time ±N minutes (before / after) • Find the elapsed time • Time word problems (departures, arrivals, durations) • Both question sheet and answer sheet output • Freely adjust problem count, columns, and problem type • Export, print, and share as PDF ■ For Teachers and Parents • Create homework worksheets quickly • Adjust difficulty to the learner's level • Practice repeatedly beyond what printed drills offer • Prepare flexible materials for tutoring and special education The app is designed with these needs in mind. Each worksheet is regenerated freshly, so you can produce variations of the same format as often as you need — ideal for repeated practice. ■ Try Before You Subscribe You can print or save up to 3 worksheets for free. Check the actual output quality first, then decide whether to upgrade to Pro. ■ Unlocked with Pro • Unlimited printing and PDF export • Advanced problem types (elapsed time, ±N minutes, 24h⇄12h, word problems) • Answer sheet output • School / class name printed in the header (great for classroom handouts) • Unlimited history with reprint • No ads Choose between monthly and yearly subscriptions. Perfect for tutoring centers, classrooms, and ongoing home learning. ■ Note This app is a learning support tool. Please use it under the guidance of a parent or teacher according to the learner's level. Terms of Use: https://lineocean.com/clockworksheetmaker/ Privacy Policy: https://lineocean.com/clockworksheetmaker/

About

Ruidaichan

Features
Read full description

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

Screenshots

Clock Worksheet Maker4 screens
Ruidaichan3 screens

Verdict

The call

The clearest difference is ads: Ruidaichan at none against Clock Worksheet Maker's shown. Ruidaichan also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (16.6 vs 18.2). On price, in-app purchases 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. Clock Worksheet Maker sells 3 in-app purchases, starting at $2.99 per month and Ruidaichan sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Clock Worksheet Maker ships an update every 2 weeks, Ruidaichan every 5 days. The most recent releases landed on September 2, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 5 level
Clock Worksheet Maker versus Ruidaichan: the parameters behind the verdict, then further details
ParameterClock Worksheet MakerRuidaichan
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS18.216.6 — better
Further details — not scored
Size8 MB18 MB
Age rating4+4+
DeveloperFumihiro KawasakiNaoki Ohashi

In-app purchases

3 purchases

Clock Worksheet Maker

Subscriptions2
  • Pro版(月払い)$2.991 Month
  • Pro版(年払い)$24.991 Year
One-time1
  • 全機能を解放(買い切り)$5.99
2 purchases

Ruidaichan

Subscriptions2
  • Light Plan$1.991 Month
  • Premium Plan$4.991 Month

Questions

Is Clock Worksheet Maker free?
Clock Worksheet Maker is free to download, with in-app purchases available.
Is Ruidaichan free?
Ruidaichan is free to download, with in-app purchases available.
Do Clock Worksheet Maker or Ruidaichan have ads?
Clock Worksheet Maker shows ads; Ruidaichan does not.
Which is updated more often, Clock Worksheet Maker or Ruidaichan?
Clock Worksheet Maker ships an update every 2 weeks, and Ruidaichan every 5 days. Most recently, Clock Worksheet Maker was updated on September 2, 2026 and Ruidaichan on September 15, 2026.

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