Comparison

ReTodo vs Circle timer

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

Head to head
About

ReTodo

Features
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It is a simple app to write down ToDo. By adopting a hierarchical structure, ToDo can be grouped. Organize your mind by grouping related to-dos. [function] - To-do creation - Rearrange ToDos (You can drag and drop by long-pressing any part other than the ToDo title) - Create child ToDo - ToDo share function (can be sent to SNS, email, Chat application) - ToDo deletion (can be deleted by emptying the ToDo title) - Leave a note on ToDo - Set image to ToDo [Recommended usage] Creation of ToDo list can be reused. For example, when you go on a trip, you create a ToDo called "Lost item list". Even if you check everything and confirm the forgotten items, let's leave the ToDo list. The next time you go on a trip, you can use the exact same to-do list. Turn off all the check boxes (there is a batch off button) and check for lost items again. [Use scene] - Use as a checklist to prevent forgotten items - shopping todo list - ToDo list for purchasing train/shinkansen tickets - To-do list for accommodation reservations such as hotels - ToDo list for today's and tomorrow's activities - ToDo list for work progress and task management ...etc

About

Circle timer

Read full description

This is a timer that lets you visually check the remaining time. The pie chart gradually disappears, and when it completely disappears an alarm will sound. The time can be set from 1 to 60 minutes You can measure the time exceeded by changing the settings. This can be useful for studying for exams, etc. Please give it a try.

Screenshots

ReTodo4 screens
Circle timer3 screens

Verdict

The call

The clearest difference is price: ReTodo at Free against Circle timer's $0.99. ReTodo also leads on iOS requirement (11.0 vs 14.4). Circle timer's advantage is ads (none vs shown). On update cadence, 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

ReTodo is free to download; Circle timer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

Scorecard3 real differences ยท 3 level
ReTodo versus Circle timer: the parameters behind the verdict, then further details
ParameterReTodoCircle timer
PriceFree โ€” better$0.99
Update frequencyEvery 4 daysEvery 4 days
AdsYesNo โ€” better
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS11.0 โ€” better14.4
Further details โ€” not scored
Size33 MB1 MB
Age rating4+4+
DeveloperTakeru Naritahideo nakamura

In-app purchases

None

ReTodo

No in-app purchases

None

Circle timer

No in-app purchases

Questions

Is ReTodo free?
ReTodo is free to download, with no in-app purchases.
Is Circle timer free?
Circle timer costs $0.99, with no in-app purchases.
Do ReTodo or Circle timer have ads?
ReTodo shows ads; Circle timer does not.
Which is updated more often, ReTodo or Circle timer?
ReTodo ships an update every 4 days, and Circle timer every 4 days. Most recently, ReTodo was updated on September 30, 2026 and Circle timer on October 5, 2026.

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