Comparison

Todoit vs 아차차

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

Head to head
About

Todoit

Organize your daily tasks, jot down diary entries, and track your goals with this versatile productivity tool. Easily add photos to tasks and memories, and view everything at a glance on the calendar. All your data is securely stored on your device.

Highlights
  • Simple to-do list creation
  • Diary entries with photo support
  • Calendar view for tasks and diaries
  • Goal setting and tracking
  • Device-local data storage
  • Photo quality adjustment
Features
Read full description

● To-do management - You can add today’s tasks very simply - It’s okay if it’s not something you want to do today. You can change the date to your desired date by changing the date! - You can easily remember your tasks by adding photos! ● Keep a diary - You can simply record your day today on Todoit! - You can create more precious memories by attaching photos - You can collect the diaries you wrote by date in the feed ● Calendar - You can write tasks on the calendar - You can see at a glance when you wrote your to-do list and diary! ● Goal management - You can set and write my goals in My Space - Make sure to achieve your goal [Todoit Precautions] - Todoit does not store user data on the server. All posts and photos you write will be saved on your phone. If you change your phone or delete and reinstall the app, be sure to back up your data using “iCloud Backup” on the Todoit settings screen! - In the case of photo upload, you can change the photo upload quality on the settings screen. - If image files do not appear properly after importing data from iCloud, check whether all image files in the Todoit -> images folder in iCloud have been downloaded!

About

아차차

Read full description

"아차차!" 사소한 루틴부터 중요한 약속까지. 자꾸 잊어버려서 속상했던 적 있으신가요? 미래의 나를 위한 오늘의 메세지를 '아차차'와 함께 보내보세요! 이름, 프로필부터 메세지 내용까지 모두 직접 정할 수 있습니다. 메신저가 온 듯한 알림으로 친근하고 재미있게 일정을 상기할 수 있습니다. 깜빡하지 말고 '아차차'와 함께 해요 :)

Screenshots

Todoit4 screens
아차차4 screens

Verdict

The call

The clearest difference is ads: Todoit at none against 아차차's shown. 아차차's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (14.0 vs 16.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Todoit ships an update every 3 weeks, 아차차 every 2 days. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Todoit versus 아차차: the parameters behind the verdict, then further details
ParameterTodoit아차차
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size41 MB12 MB
Age rating4+17+
DeveloperRocky LimChaehui Seo

In-app purchases

None

Todoit

No in-app purchases

None

아차차

No in-app purchases

Questions

Is Todoit free?
Todoit is free to download, with no in-app purchases.
Is 아차차 free?
아차차 is free to download, with no in-app purchases.
Do Todoit or 아차차 have ads?
아차차 shows ads; Todoit does not.
Which is updated more often, Todoit or 아차차?
Todoit ships an update every 3 weeks, and 아차차 every 2 days. Most recently, Todoit was updated on October 2, 2026 and 아차차 on October 5, 2026.

Other comparisons