Comparison

Collie | AI Handwriting Eraser vs Study Planner Pro

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

Head to head
About

Collie | AI Handwriting Eraser

Features
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"I wish I could redo that worksheet I already wrote on..." "I want to make a test with just the problems I got wrong..." "I've lost track of which problems I still can't solve..." Collie is a study support app that solves all these problems at once. --- โ–  AI Removes Handwriting Cleanly Just take a photo of your worksheet or study material, and AI automatically detects and removes only the handwritten marks. Printed text stays intact, so you can redo problems as if the sheet were brand new. No more erasing by hand and making copies. โ–  Create Tests from Missed Problems Only Simply mark the problems you couldn't solve, and create an original test from your weak points with a single tap. Swipe to intuitively select which problems to include. Tests are automatically laid out in A4 format, ready to print. โ–  Repeat Until You Get It Right Collie never forgets your weak problems and keeps presenting them until you master them. No more wondering which problems you still haven't solved. Review history is tracked per problem to fully support your progress. --- โ–  Perfect For - Parents supporting their child's studies - Those who want to reuse printed worksheets and study materials - Those who find managing weak problems tedious - Those who want to build an efficient review cycle โ–  Key Features - AI Handwriting Removal: Erase handwriting just by taking a photo - Scan Management: Organize scanned worksheets by subject - Weak Problem Marking: Select problem areas to flag as weak points - Test Creation: Auto-generate original tests from weak problems only - Repeated Practice: Keep presenting problems until mastered, with review history - Image Editing: Cropping, manual eraser, original view - PDF Export: Export and print created tests as PDF - Continuous Scanning: Efficiently scan multiple pages โ–  Pricing - 7-day free trial included - Monthly and yearly plans available (yearly is a better deal) - Cancel your subscription anytime Terms of Use: https://gist.github.com/souchida/9d243dcbd9875a33c573388acbec8bb0 Privacy Policy: https://gist.github.com/souchida/dc8ea86670743e7f1d10d6610cfcc212

About

Study Planner Pro

Features
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๊ณต๋ฌด์›ยท Study Planner Pro๋Š” ๊ณต๋ฌด์›ยท๊ณ ์‹œยท์ž๊ฒฉ์ฆ ๋“ฑ ์žฅ๊ธฐ ์ˆ˜ํ—˜ ์ค€๋น„๋ฅผ ์œ„ํ•œ ํ•™์Šต ํ”Œ๋ž˜๋„ˆ์ž…๋‹ˆ๋‹ค. ์‹œํ—˜์ผ๊ณผ ๊ต์žฌ ๋ฒ”์œ„๋งŒ ์ž…๋ ฅํ•˜๋ฉด, ํšŒ๋…๊ณผ ๋ณต์Šต ๊ฐ„๊ฒฉ๊นŒ์ง€ ๊ณ ๋ คํ•œ ์ผ์ž๋ณ„ ํ•™์Šต ๊ณ„ํš์„ ์ž๋™์œผ๋กœ ๋งŒ๋“ค์–ด ๋“œ๋ฆฝ๋‹ˆ๋‹ค. โ–  ์ž๋™ ํ•™์Šต ๊ณ„ํš ยท ์‹œํ—˜์ผ ๊ธฐ์ค€ ์—ญ์‚ฐ์œผ๋กœ ๋งค์ผ ๊ณต๋ถ€ํ•  ๋ถ„๋Ÿ‰์„ ๋ฐฐ๋ถ„ ยท ๊ต์žฌ ํŽ˜์ด์ง€๋ฅผ ์ž๋™ ๋ถ„ํ• ํ•ด ํšŒ๋…๋ณ„๋กœ ๊ท ํ˜• ์žˆ๊ฒŒ ๋ฐฐ์น˜ ยท ์ง„๋„๊ฐ€ ๋ฐ€๋ฆฌ๋ฉด ๋‚จ์€ ๊ธฐ๊ฐ„์— ๋งž์ถฐ ์žฌ์กฐ์ • โ–  ์ง„๋„ยท๋ณต์Šต ๊ด€๋ฆฌ ยท ๊ณผ๋ชฉ๋ณ„ ์ง„๋„์œจ๊ณผ ํšŒ๋… ํ˜„ํ™ฉ ํ•œ๋ˆˆ์— ยท ์˜ค๋‹ต ๋…ธํŠธ, ํ•™์Šต ๋ฆฌํฌํŠธ๋กœ ์•ฝ์  ํŒŒ์•… ยท ์บ˜๋ฆฐ๋”๋กœ ์˜ค๋Š˜ ํ•  ์ผ๊ณผ ์ „์ฒด ์ผ์ • ํ™•์ธ โ–  ์Šคํ„ฐ๋”” ๊ทธ๋ฃน ยท ํ•จ๊ป˜ ๋ชฉํ‘œ๋ฅผ ์„ธ์šฐ๊ณ  ํŒŒํŠธ๋ฅผ ๋‚˜๋ˆ  ์ง„ํ–‰ ยท ๊ณต์šฉ ํ•  ์ผยท์ž๋ฃŒยท์ฑ„๋„๋กœ ํ˜‘์—… ยท ์ถœ์„ ์ธ์ฆ๊ณผ ๋ฒŒ๊ธˆ ์žฅ๋ถ€๋กœ ๋™๊ธฐ ๋ถ€์—ฌ โ–  AI ํ•™์Šต ์ฝ”์นญ (AI Plus ๊ตฌ๋…) ยท ํ•™์Šต ๋ฐ์ดํ„ฐ ๊ธฐ๋ฐ˜ ๋งž์ถค ์ฝ”์นญ๊ณผ ๋ถ„์„ ์ง€๊ธˆ ์‹œ์ž‘ํ•ด ํ•ฉ๊ฒฉ๊นŒ์ง€์˜ ๊ธธ์„ ๊ณ„ํšํ•˜์„ธ์š”. ์ด์šฉ์•ฝ๊ด€(Terms of Use - Standard EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ์„œ๋น„์Šค ์ด์šฉ์•ฝ๊ด€: https://jeora.app/planner/pro/terms ๊ฐœ์ธ์ •๋ณด์ฒ˜๋ฆฌ๋ฐฉ์นจ(Privacy Policy): https://jeora.app/planner/pro/privacy

Screenshots

Collie | AI Handwriting Eraser4 screens
Study Planner Pro4 screens

Verdict

The call

The clearest difference is update cadence: Study Planner Pro at every 2 weeks against Collie | AI Handwriting Eraser's every 6 weeks. Study Planner Pro also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Collie | AI Handwriting Eraser sells 2 in-app purchases, starting at $2.99 per month and Study Planner Pro sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Collie | AI Handwriting Eraser ships an update every 6 weeks, Study Planner Pro every 2 weeks. Both last shipped on October 25, 2026.

Scorecard2 real differences ยท 4 level
Collie | AI Handwriting Eraser versus Study Planner Pro: the parameters behind the verdict, then further details
ParameterCollie | AI Handwriting EraserStudy Planner Pro
PriceFreeFree
Update frequencyEvery 6 weeksEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.015.0 โ€” better
Further details โ€” not scored
Size21 MB20 MB
Age rating4+17+
DeveloperSOKI UCHIDAHyunJu Kim

In-app purchases

2 purchases

Collie | AI Handwriting Eraser

Subscriptions2
  • Monthly Plan7 Days trial$2.991 Month
  • Yearly Plan7 Days trial$22.991 Year
1 purchases

Study Planner Pro

Subscriptions1
  • Planner Pro - AI ํ”Œ๋Ÿฌ์Šค ๋ฉค๋ฒ„์‰ฝ$2.991 Month

Questions

Is Collie | AI Handwriting Eraser free?
Collie | AI Handwriting Eraser is free to download, with in-app purchases available.
Is Study Planner Pro free?
Study Planner Pro is free to download, with in-app purchases available.
Do Collie | AI Handwriting Eraser or Study Planner Pro have ads?
Neither Collie | AI Handwriting Eraser nor Study Planner Pro shows ads.
Which is updated more often, Collie | AI Handwriting Eraser or Study Planner Pro?
Collie | AI Handwriting Eraser ships an update every 6 weeks, and Study Planner Pro every 2 weeks. Most recently, Collie | AI Handwriting Eraser was updated on October 25, 2026 and Study Planner Pro on October 25, 2026.

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