Otter: Water Intake Tracker
Linh Phan Nhat Khanh Health & Fitness iPhoneiPadiPod touch
Otter: Water Intake Tracker is a free Health & Fitness app for iPhone and iPad by Linh Phan Nhat Khanh. Requires iOS 17.0. Updated June 10, 2026.
- Price
- Free
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Jun 10
- 2026 · v1.1.0
Screenshots
About Otter: Water Intake Tracker
Most people finish the day dehydrated without ever noticing. Otter makes it effortless to stay on track — log a drink in one tap and watch your animated progress ring fill toward your goal. — KEY FEATURES — • Animated circular progress ring — a smooth spring animation fills as you log each drink; a "Goal reached!" badge appears when you hit 100% • Quick-add buttons — one tap for 250 ml, 500 ml, or 750 ml, the three most common drink sizes • 8 bottle presets — from an Espresso Shot (30 ml) to a Jug (1 500 ml); swipe to remove any, or add your own custom bottle by name and capacity • Custom entry — type any amount in ml or fl oz using the + button • Smart daily goal — set your own target or let Otter suggest one based on your body weight (35 ml per kg) • ml or fl oz — switch display units at any time in Settings; all values convert instantly • 14-day history — an interactive bar chart shows your last two weeks at a glance; a goal reference line and per-day progress bars make streaks and gaps obvious • Delete any entry — tap the trash icon on any log entry to correct a mistake • Fully offline — your data never leaves your device; no account, no network, no ads Otter stores everything privately in your device's local storage. There are no servers, no sign-in screens, and no tracking of any kind. Start logging today and build the hydration streak your body deserves. — Otter Hydrate Tracker PREMIUM — Otter Premium unlocks unlimited custom bottles and goals, your full hydration history and trends, smart reminders that adapt to your schedule, and an ad-free experience — everything you need to turn daily hydration into a lasting habit. Subscription options: • Weekly — $9.99 / week • Yearly — $49.99 / year (includes a 3-day free trial) Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pnkl26.web.app/privacy-policy
What’s new
Version 1.1.0 · Updated June 10, 2026
Version 1.0 • Animated circular progress ring that fills as you log water toward your daily goal • Quick-add buttons for 250 ml, 500 ml, and 750 ml • 8 built-in bottle presets (Espresso Shot to Jug) with custom add and swipe-to-delete • Custom amount entry in ml or fl oz • Daily goal setting with optional body-weight-based suggestion (35 ml per kg) • Display unit toggle: millilitres or fluid ounces • 14-day history with bar chart and per-day progress bars • Delete individual log entries • Fully offline — no account, no network, no subscription
App privacy
The developer, Linh Phan Nhat Khanh, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Otter: Water Intake Tracker
Looking for apps like Otter: Water Intake Tracker? Here are 6 similar apps on the App Store. The highest rated is nak — Meditation with an Otter (4.9/5), and all 6 are free to download.
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Otterly Hydrated: Stay Healthy
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Nutritionist Buddy Keto
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nak — Meditation with an Otter
4.9
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Speedoc: Virtual Hospital
4.4
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Military Calisthenics Workout
4.9
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Digital Journal Diary
4.6
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Otter: Water Intake Tracker | – | Free | June 10, 2026 | |
| Otterly Hydrated: Stay Healthy | – | Free | May 16, 2026 | Compare |
| Nutritionist Buddy Keto | – | Free | Aug 5, 2026 | Compare |
| nak — Meditation with an Otter | 4.9 / 5 (8) | Free | Oct 21, 2026 | Compare |
| Speedoc: Virtual Hospital | 4.4 / 5 (185) | Free | Oct 23, 2026 | Compare |
| Military Calisthenics Workout | 4.9 / 5 (1,025) | Free | Oct 15, 2026 | Compare |
| Digital Journal Diary | 4.6 / 5 (6,518) | Free | Sep 23, 2026 | Compare |