tsundoki vs チャイム
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
tsundoki
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Save time with "Tsundoki" and spend it on the things you love! "Tsundoki" is an app that allows you to save and use time freely. Accumulate time by completing daily tasks and allocate it to your favorite activities. For example, save time spent on "washing dishes" or "cleaning" and use it as "reading time." With "Tsundoki," you can create your own unique time management system and enjoy a fulfilling lifestyle!
チャイム
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Use the chimes you often heard in your student days as an alarm clock or to mark study breaks and refresh your mind. Even as an adult, it might bring back memories. You can specify the year, month, day, hour, and minute, and set it to repeat on certain days of the week.
Screenshots
Verdict
The clearest difference is iOS requirement: tsundoki at 16.0 against チャイム's 18.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
tsundoki ships an update every 5 weeks, チャイム monthly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | tsundoki | チャイム |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 19 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | masaya hashimoto | kouji kawai |
In-app purchases
tsundoki
No in-app purchases
チャイム
No in-app purchases
