Aiboou vs Mitasu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aiboou
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Aiboouは、あなたの気持ちに寄り添うAIカウンセリングアプリです。 悩んでいること、不安なこと、誰かに話したいけど話せないこと——そんなとき、Aiboouのパートナーがいつでも話を聞いてくれます。 【主な機能】 • AIパートナーとのチャット相談 • 毎日の気分記録 • 気圧グラフで体調管理 • セルフケアのヒント 【プレミアムプラン】 1日150件までのAI相談が可能になります。 あなたのペースで、毎日のセルフケアを続けましょう。
Mitasu
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Hydration that feels good. Mitasu is a simple tracker for your daily water intake, where every glass fills the whole screen with water. The level rises as you drink, and the scene shifts as you get closer to your goal. You don't count it. You fill it. A calm, ambient design that makes you want to drink a little more every time you look. —— ◆ Features ◎ An ambient water surface that rises as you drink ◎ A background that shifts with the time of day — morning, day, evening, night ◎ One-tap quick add, plus custom amounts for anything else ◎ Estimate your daily goal from your body weight ◎ Reminders within the hours you choose, so you never forget ◎ Apple Health integration that logs your water intake ◎ Monthly heatmap and weekly chart to review your habits (Pro) ◎ Log a glass in seconds from Apple Watch ◎ Home Screen and Lock Screen widgets show your progress ◎ Interactive logging from widgets and a Lock Screen Live Activity (Pro) ◎ Works in ml or fl oz —— ◆ Perfect For ・Anyone building a habit of drinking more water ・People who want to stay hydrated without chasing numbers ・Apple Health users who want their water data in one place ・Apple Watch owners who want to log a glass in seconds —— Don't count it. Fill it. Mitasu turns daily hydration into a calm, beautiful habit. —— Mitasu Pro (subscription) unlocks your full history beyond 3 days, monthly heatmaps, streaks, averages, custom reminders, and editable quick-add presets. Eligible new subscribers can start with a free trial. Plans renew automatically until canceled in App Store settings at least 24 hours before renewal. —— Terms of Use (EULA): https://rakko.app/mitasu-terms-and-conditions/ Privacy Policy: https://rakko.app/mitasu-privacy-policy/
Screenshots
Verdict
The clearest difference is iOS requirement: Aiboou at 15.0 against Mitasu's 26.4. 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. Aiboou sells 1 in-app purchase, starting at $2.99 per month and Mitasu sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Aiboou ships an update every 9 days, Mitasu every 2 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | Aiboou | Mitasu |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 57 MB | 17 MB |
| Age rating | 17+ | 4+ |
| Developer | Kento Fukui | Rakko Inc. |
In-app purchases
Aiboou
- プレミアムプラン$2.991 Month
Mitasu
- Mitasu Pro Weekly3 Days trial$2.997 Days
- Mitasu Pro Annual7 Days trial$29.991 Year









