Water Tracker vs Onefast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Water Tracker
This application helps you maintain proper hydration by sending timely reminders to drink water throughout the day. It calculates your daily water needs based on your weight and tracks your intake, promoting better health and skin.
- Daily water intake reminders
- Personalized hydration goals
- Tracks water consumption
- Promotes healthy skin
- Supports weight loss
- Hydration after workouts
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Water drink reminder reminds you to drink enough water. Proper hydration keeps your skin healthy and helps you lose weight. This water tracker app reminds you to water reminder every day and every hour to keep you hydrated. Just enter your current weight, and water drink Reminder will help you determine how much water your body needs every day. Remember to update the app each time you drink a cup of water. Then the app will remind you when it's time for another drink. Hydration helper not only tracks what you drink but also reminds you when it's time for another drink. The benefits of drinking water: * Stay in shape and keep fit; water is calorie free. * Clears up your skin. * Helps prevent kidney stones. * Keeps you hydrated. * Water tracker that will remind you when and how much water to drink throughout the day. * Keeps you hydrated after working out at gyms, swimming, yoga, playing football, etc. DEDICATED TO PERFECTION Our goal is to make our app the best scanning app in the store. We can’t do this without you. We are dedicated to your satisfaction and need to hear feedback from you. If you have an issue with the app, please do not write a review of the app saying "it didn't work." This does not help us make things better for you. Instead, please contact us at me@novv.io and we'll do our best to help.
Onefast
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A fasting timer that does one thing well. Pick a plan, tap Start, and Onefast counts. The time left is on your lock screen and in the Dynamic Island, so you never open the app just to look. When the goal is reached it tells you once, then keeps counting, up to seven days. ONE TAP No sign-up, no questions, no tour. The first screen is the plan picker with 16:8 already selected; the second is the timer. That is the whole setup. ALWAYS RIGHT The timer is a clock, not a counter. Force-quit the app, restart the phone, change time zone — it comes back showing the true elapsed time, to the second. The widget, the Live Activity and the app all read the same moment. YOURS TO EDIT Forgot to tap End? Fix the time afterwards. Add a fast you did last week. Overlaps are named in words, not blocked silently. Fasts longer than 24 hours are allowed — Onefast asks once whether you meant it, then never again. QUIET WHEN YOU WANT Three switches: Live Activity with Dynamic Island, the lock screen widget, and the home screen widget. Notifications turn on and off one kind at a time, and the mid-fast ones start off. PLANS 12:12, 14:10, 16:8, 18:6, 20:4 and one meal a day are built in. Up to five named custom plans and a weekly schedule with Pro. NO ADS. EVER. Not on the free tier, not after you buy. Onefast has no server, no account and no analytics. Your history lives on your iPhone and, if you turn it on, in your own private iCloud. ONEFAST PRO Unlimited history (free keeps the last 30 days), 30-day and all-time stats with charts, month and year summaries, insights from your own record, milestones you can share, a weekly schedule with rest days, up to five named custom plans, two-way weight sync with Apple Health, a weight goal line on your chart, ten ring colours and app icons or a colour of your own, a medium calendar widget, and CSV export. Two prices, one name: a yearly subscription that auto-renews until cancelled, or a single lifetime purchase. No trial. The price is on screen before you tap anything. Everything that makes the timer usable — lock screen, notifications, backup, editing — stays free with or without Pro. Onefast is a timer. It gives no medical or dietary advice; talk to a professional before changing how you eat. Available in English, 日本語, 한국어, 繁體中文, Italiano, Nederlands, Deutsch, Français, Español, Português (Brasil), العربية, Türkçe and Tiếng Việt. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://primetruthteam.github.io/onefast/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Onefast at every 2 days against Water Tracker's every 10 days. Water Tracker's advantage is iOS requirement (10.0 vs 17.0). On price, ads, in-app purchases and device support 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. Water Tracker sells 1 one-off in-app purchase and Onefast sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.
Water Tracker ships an update every 10 days, Onefast every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Water Tracker | Onefast |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | JUPITER TEKNOLOJI SANAYI VE TICARET LIMITED SIRKETI | Nguyen Dinh Chung |
In-app purchases
Water Tracker
- Water Reminder & Alert No-Ads$1.99
Onefast
- Onefast Pro (Yearly)$9.991 Year
- Onefast Pro (Lifetime)$19.99









