# WaterFast: IF Fasting Timer — 16:8 Intermittent Fast Tracker

> Synchronized intermittent fasting timer for iPhone and Apple Watch. (iPhone/iPad app by LUIS ORLANDO LAZO GONZALEZ.)

- Source: https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484 (this page in markdown: same URL + `.md`)
- Developer: [LUIS ORLANDO LAZO GONZALEZ](https://appshunter.io/developer/1896012382)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: English, French, German, Japanese, Spanish
- Released: 2026-07-07
- Data updated: 2026-08-23
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484/reviews.md

## What is WaterFast?

Zero charges $69.99/year for a fasting timer. WaterFast charges $9.99. Same core features. You decide.

FASTING APPS HAVE A PROBLEM
They're either overpriced, bloated with social feeds and AI coaching you never asked for — or they're simple but their Apple Watch app runs a separate countdown that drifts out of sync with your iPhone. You end up with two different timers for the same fast. Not optimal at all.

WATERFAST IS DIFFERENT
One timer. One source of truth. Your Watch doesn't follow your iPhone — it leads. Start, monitor and end your fast right from your wrist, even when your iPhone is in your pocket. When you pick it up, everything matches. Always. To the second.

FREE FOREVER
- 16:8 fasting plan — the most popular protocol
- Live fasting timer with progress ring
- Start & stop fasts from Apple Watch
- Basic Watch complication
- Hydration tracking with quick-add
- 7-day fasting history
- No account required

WATERFAST PRO
- All fasting plans: 18:6, 20:4, OMAD, 5:2 and fully custom
- Streak calendar — don't break the chain, unlimited history
- All Apple Watch complications (circular, corner, inline, rectangular)
- Advanced hydration tracking with daily goal
- Detailed fasting zone insights
- Full stats: current streak, longest fast, total hours, success rate
- Export your data as CSV

BUILT FOR APPLE WATCH — REALLY
Most fasting apps treat the Watch as an afterthought. WaterFast was designed wrist-first. The timer state lives in one shared place: start a fast on your Watch during dinner, check the zone on your iPhone the next morning — same fast, same seconds, zero drift. Your complication updates every minute while you fast.

KNOW YOUR FASTING ZONES
Track exactly what's happening in your body — from digestion through fat burning and ketosis to autophagy. Each zone explained in plain language, with science-based hour ranges. Educational reference only — not medical advice.

HYDRATION, ON YOUR WRIST
Every fasting app tracks water. Only WaterFast lets you log a glass with one tap on your Watch, with haptic confirmation, synced instantly to your iPhone and Apple Health.

A PRICE THAT RESPECTS YOU
WaterFast PRO: $9.99/year or $24.99 lifetime — one payment, forever. Try everything free for 3 days. No monthly fees. Ever. We think a fasting timer shouldn't cost more than your streaming service.

PRIVATE BY DESIGN
No account. No ads. No tracking. Your fasting and hydration data never leaves your device (except to your own Apple Health, if you choose).

Download free. Start your first 16:8 fast in 10 seconds.

---
Medical disclaimer: WaterFast provides educational information about fasting. It is not medical advice. Consult your healthcare provider before starting any fasting protocol, especially if you have a medical condition, are pregnant, or take medication.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Synchronized iPhone and Apple Watch timer
- Fasting zone insights
- Hydration tracking
- Multiple fasting plans
- Streak calendar
- Data export

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| WaterFast PRO Yearly | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| WaterFast PRO Lifetime | $24.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/waterfast-if-fasting-timer/id6787013484/reviews.md

### 5/5 — Great app

*2026-07-12*

La uso para bajar de peso, muy buena app, justo lo que necesitaba

## Frequently asked questions about WaterFast

### Does WaterFast have ads?

No, WaterFast is ad-free. The app emphasizes privacy and does not include advertisements.

### What are the pricing options for WaterFast PRO?

WaterFast PRO is available for $9.99 per year with a 7-day free trial, or as a lifetime purchase for $24.99. There are no monthly fees.

### How does WaterFast sync with Apple Watch?

WaterFast is built with Apple Watch as the primary device. The timer state is shared, ensuring your iPhone and Watch timers remain synchronized to the second, even when your phone is not actively being used.

### What fasting plans does WaterFast offer?

The free version includes the 16:8 fasting plan. WaterFast PRO unlocks additional plans such as 18:6, 20:4, OMAD, 5:2, and fully custom plans.

### Can I track my hydration with WaterFast?

Yes, WaterFast includes hydration tracking. You can log water intake with a single tap on your Apple Watch, and this data syncs instantly to your iPhone and Apple Health.

### What are fasting zones in WaterFast?

Fasting zones provide insights into what is happening in your body during a fast, including digestion, fat burning, ketosis, and autophagy. Each zone is explained with science-based hour ranges for educational purposes.

### Is my data private with WaterFast?

Yes, WaterFast is designed for privacy. It requires no account, no ads, and no tracking. Your fasting and hydration data remains on your device unless you choose to sync it with Apple Health.

### How often is WaterFast updated?

The app was last updated on July 15, 2026, with version 1.0.1. This indicates active development and maintenance.

## Version history (last 5 releases)

### 1.0.6 — 2026-08-16

• Try everything free for 3 days — pick monthly or yearly, cancel anytime. All plans, streak calendar, full stats and Watch complications.
• A full automatic cycle: reach your goal and your fast is saved, then your eating window begins — and when it ends, you're ready for the next one.
• Smoother, more reliable timer, with clear "End fast" and "Finish" actions in each phase.
• A cleaner, more minimalist design — polished for both light and dark mode.
• New gentle reminder to get back to fasting after a few days off.
• Fixes and performance improvements.

### 1.0.5 — 2026-08-08

• A full automatic cycle: reach your goal and your fast is saved, then your eating window begins — and when it ends, you're ready for the next one.
• Smoother, more reliable timer, with clear "End fast" and "Finish" actions in each phase.
• A cleaner, more minimalist design — polished for both light and dark mode.
• New gentle reminder to get back to fasting after a few days off.
• Fixes and performance improvements.

### 1.0.4 — 2026-07-24

Your fasting cycle now runs on autopilot:
• Reach your goal (e.g. 16h) and your fast is saved automatically — with a notification that you can eat.
• The eating window starts counting from 0 (in green), so you always know how long you have left to eat.
• When the window closes, the cycle ends by itself and you get a reminder to start your next fast.
• Works for every plan: 16:8, 18:6, 20:4, OMAD, 5:2 and custom — on iPhone, Apple Watch, widgets and complications.
Also: reliable start/end from Apple Watch, redeem promo codes in the app, and visual fixes.

### 1.0.3 — 2026-07-23

Your fasting cycle now runs on autopilot:
• Reach your goal (e.g. 16h) and your fast is saved automatically — with a notification that you can eat.
• The eating window starts counting from 0 (in green), so you always know how long you have left to eat.
• When the window closes, the cycle ends by itself and you get a reminder to start your next fast.
• Works for every plan: 16:8, 18:6, 20:4, OMAD, 5:2 and custom — on iPhone, Apple Watch, widgets and complications.
Also: reliable start/end from Apple Watch, redeem promo codes in the app, and visual fixes.

### 1.0.2 — 2026-07-22

Your fasting cycle now runs on autopilot:
• Reach your goal (e.g. 16h) and your fast is saved automatically — with a notification that you can eat.
• The eating window starts counting from 0 (in green), so you always know how long you have left to eat.
• When the window closes, the cycle ends by itself and you get a reminder to start your next fast.
• Works for every plan: 16:8, 18:6, 20:4, OMAD, 5:2 and custom — on iPhone, Apple Watch, widgets and complications.
Also: reliable start/end from Apple Watch, redeem promo codes in the app, and visual fixes.

## More apps by LUIS ORLANDO LAZO GONZALEZ

- [AdsWatch: Campaigns & Ads](https://appshunter.io/ios/app/adswatch-campaigns-and-ads/id6765619277)
- [Capote Business Solutions](https://appshunter.io/ios/app/capote-business-solutions/id6768779298)
- [DigitalTwin AI: AI Keyboard](https://appshunter.io/ios/app/digitaltwin-ai-ai-keyboard/id6779393219)
- [GlucoWrist - Glucose Tracker](https://appshunter.io/ios/app/glucowrist-glucose-tracker/id6782406071)
- [MedicWatch: Pill Reminder](https://appshunter.io/ios/app/medicwatch-pill-reminder/id6782627346)
- [PressureLog — BP Tracker](https://appshunter.io/ios/app/pressurelog-bp-tracker/id6784764201)

All apps by LUIS ORLANDO LAZO GONZALEZ: https://appshunter.io/developer/1896012382

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*