Comparison

StudyStamp vs 필기 지우개

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

Head to head
About

StudyStamp

Features
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An app where your streak isn't a checkmark. It's the photo you took that day and the time you studied. When you finish studying, take one photo of your book. Pick the time, and the day's record is done. No timer to start and stop. No sign-up. Your calendar fills with your own photos, and the days you've kept going add up. ■ One photo is one day's record · Shoot in the app or pick from your album · Set the time with quick buttons, then adjust in 5-minute or 1-minute steps · A one-line "How far did you get?" note is there only when you want it · If a photo from your album has a capture date, the record is set to that date · You can add records to past days, too ■ The streak comes first · Your streak is the biggest thing on screen when you open the app · Save a record and watch yesterday's 7 days become today's 8, right there · Skim the last 7 days in a single row · Falling short of your daily goal doesn't break the streak ■ A calendar filled with your photos · Each day shows the last photo you took that day · You won't look back at a calendar filled with color, but you will at one filled with your photos · The Album tab lays out a month of photos as tiles ■ One day or one month, as a single image · Turn today's record into a card you can save or send anywhere · For today's card, pick one of five layouts, and leave your profile off it if you'd rather · The month you are looking at in Calendar becomes one image, grid and all · The days you recorded, the time you studied, and that month's recap go on it ■ Set just one daily goal · Monthly and yearly goals are calculated for you · Before you change a goal, see how the results would change · A history of changes shows which goal applied from when ■ See your records from several angles · Monthly: a filled-in grid, total time, and a chart by weekday · Yearly: a chart by month, one photo per month, and the year's total · When a month ends, leave a short recap of it ■ Tag a record, find it later · Add up to five tags to a record, when you save it or when you edit it later · Type in the search field at the top of Album and only the records whose memo or tags match are left ■ Fill in past days · Yesterday's photo or last week's photo becomes that day's record · Album photos are pre-set to their capture date · Import up to 50 photos you already have from Settings. Each one lands on the day it was taken · Studied past midnight? Change the date to the day before, then save ■ Up to three people on one iPhone · Everyone keeps their own records · Tap the profile at the top to switch ■ Two panes on iPhone Duo · Unfold it and hold the inner display sideways, and each of the five tabs splits into left and right panes · Today lists "Previous 7 days" in the left pane, one row per day · Calendar shows last month beside this month, and Stats shows the previous period beside the current one · Album and Settings open the photo or screen you choose in the right pane · Folded or held upright, it shows a single screen, just like other iPhone models ■ Pick how the app looks · Set your iPhone to Dark Mode and the app turns dark with it · Or pick System, Light, or Dark yourself in Settings · Your choice stays on this device, even after you close the app ■ No account, no server · No sign-up. We never ask for your name or email · Your records and photos stay on this device. The app sends nothing anywhere · If iCloud Backup is on for your iPhone, your records are included and follow you to a new device · No ads. Not even the developer can see what or how much you studied Made for people who study with books every day and want to keep a trace of it: exam candidates, people preparing for certifications, and steady readers.

About

필기 지우개

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푼 문제집·시험지·학습지를 찍으면 연필과 색펜 필기만 지우고 인쇄된 문제는 그대로 남겨요. 지운 페이지는 바로 인쇄하거나 PDF로 저장해서 다시 풀 수 있어요. ■ 이렇게 써요 • 문제집을 찍거나 앨범에서 사진을 가져와요. 여러 장을 이어서 찍을 수 있어요. • 찍은 뒤에도 모서리를 끌어 페이지 영역을 다시 맞출 수 있어요. • 한 번에 모두 지우고, 원본과 결과를 바꿔 가며 비교해요. • 남은 자국은 지우개로 지우고, 함께 지워진 인쇄는 복원으로 되살려요. • 고른 페이지만 인쇄하거나 PDF·사진으로 저장해요. ■ 틀린 문제는 매일 다시 풀어요 • 지운 페이지에서 틀린 문제를 오답 노트에 담아 두면, 다음 날부터 하루 3문제씩 골라 줘요. • 혼자 풀었는지, 어렵게 풀었는지에 따라 다음에 나오는 때가 달라져요. • 다 풀면 도장을 받고, 이어 갈수록 연속이 쌓여요. 다시 풀수록 필통 친구 36명이 하나씩 찾아와요. • Apple·Google로 로그인해 두면 휴대폰을 바꾸거나 앱을 다시 깔아도 내 필통 기록을 이어 가요 (선택, 만 14세 이상). ■ 이런 필기를 잘 지워요 • 서술형·그림 문제에 연필로 쓴 풀이 • 빨간펜 채점 표시 (동그라미, 체크, 빗금) • 색연필로 그린 그림과 밑줄 ■ 사진은 기기 밖으로 나가지 않아요 사진 처리는 모두 iPhone 안에서 이뤄져요. 회원가입 없이 쓸 수 있고, 사진을 서버로 보내지 않아요. 서비스 개선을 위한 이용 통계는 개인을 알아볼 수 없는 월별 합계이고, 설정에서 끌 수 있어요. ■ 무료 이용과 구독 • 처음 10장은 무료로 지울 수 있어요. 결과를 다듬거나 인쇄·저장하는 것은 언제나 무료예요. • 그 뒤에는 프리미엄 구독(월간·연간)으로 장 수 제한 없이 지울 수 있어요. • 결제는 구매를 확정할 때 Apple ID 계정으로 청구돼요. 구독 기간이 끝나기 24시간 전까지 해지하지 않으면 자동으로 갱신돼요. 구독 관리와 해지는 App Store 계정 설정에서 할 수 있어요. 이용약관: https://eraser.edureserve.com/terms.html 개인정보 처리방침: https://eraser.edureserve.com/privacy.html

Screenshots

StudyStamp4 screens
필기 지우개4 screens

Verdict

The call

The clearest difference is update cadence: 필기 지우개 at daily against StudyStamp's every 4 days. On ads, in-app purchases, device support 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

UpkeepUpdate frequency

StudyStamp ships an update every 4 days, 필기 지우개 daily. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
StudyStamp versus 필기 지우개: the parameters behind the verdict, then further details
ParameterStudyStamp필기 지우개
PriceFree — better—
Update frequencyEvery 4 daysDaily — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size8 MB157 MB
Age rating4+4+
DeveloperYoungBeom Seoseungbin baik

In-app purchases

None

StudyStamp

No in-app purchases

None

필기 지우개

No in-app purchases

Questions

Is StudyStamp free?
StudyStamp is free to download, with no in-app purchases.
Is 필기 지우개 free?
Pricing for 필기 지우개 is not currently listed on the App Store.
Do StudyStamp or 필기 지우개 have ads?
Neither StudyStamp nor 필기 지우개 shows ads.
Which is updated more often, StudyStamp or 필기 지우개?
StudyStamp ships an update every 4 days, and 필기 지우개 daily. Most recently, StudyStamp was updated on October 29, 2026 and 필기 지우개 on October 31, 2026.

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