ReTodo vs Circle timer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
ReTodo
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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
Circle timer
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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
Verdict
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
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.
Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.
| Parameter | ReTodo | Circle timer |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Every 4 days | Every 4 days |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 11.0 โ better | 14.4 |
| Further details โ not scored | ||
| Size | 33 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Takeru Narita | hideo nakamura |
In-app purchases
ReTodo
No in-app purchases
Circle timer
No in-app purchases









