チャイム vs AKEMUTSU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
AKEMUTSU
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江戸時代の「不定時法」で現在の時刻を表示する和の時計アプリです。 ◆ 不定時法とは 日の出と日の入りを基準に一日を分ける、江戸時代の時間の数え方。季節によって一刻(いっとき)の長さが変わる、自然と共に生きる時間感覚を体験できます。 ◆ 主な機能 ・十二支の刻を美しい書道フォントで表示 ・日の出・日の入りに連動した昼夜グラデーション ・世界の主要都市に対応 ・和の呼吸モード(瞑想タイマー) ・鎖国モード(通知を一時停止) ・ウィジェット対応(ロック画面・ホーム画面) ・Apple Watch対応 ◆ こんな方におすすめ ・日本の伝統文化に興味がある方 ・マインドフルネスや瞑想を実践している方 ・ユニークな時計アプリを探している方 ・江戸時代の暮らしに思いを馳せたい方
Screenshots
Verdict
The clearest difference is ads: AKEMUTSU at none against チャイム's shown. AKEMUTSU also leads on update cadence (daily vs monthly) and device support (3 vs 1). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
チャイム ships an update monthly, AKEMUTSU daily. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.
| Parameter | チャイム | AKEMUTSU |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | kouji kawai | Shoya Inoue |
In-app purchases
チャイム
No in-app purchases
AKEMUTSU
No in-app purchases









