# BioState — Intermittent Fasting Timer

> Intermittent fasting tracker visualizing metabolic stages and biological insights. (iPhone/iPad app by xavier toefield.)

- Source: https://appshunter.io/ios/app/biostate/id6757971507 (this page in markdown: same URL + `.md`)
- Developer: [xavier toefield](https://appshunter.io/developer/1858079665)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.5 · 1 MB
- Languages: American English
- Released: 2026-02-19
- Data updated: 2026-07-09
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/biostate/id6757971507/reviews.md

## What is BioState?

Track Your Fast. Visualize Your Biology.

BioState is more than a stopwatch—it’s a metabolic compass. While other apps just count down the minutes, BioState uses your fasting data to visualize exactly what is happening inside your body. Built for biohackers, intermittent fasters, and those seeking cellular health, BioState bridges the gap between effort and biological insight.

THE FIVE METABOLIC STAGES Understand the science of your fast. BioState tracks your progression through five distinct biological phases based on your elapsed time: • Anabolic (0-4h): Your body processes your last meal. • Catabolic (4-16h): Transitioning from glucose to fat-burning. • Ketosis (16-24h): Fat-burning is fully initiated as primary fuel. • Autophagy (24-72h): Cellular "cleanup" and regeneration begins. • Deep Reset (72h+): Maximum immune system and hormonal reset.

ENGINEERED FOR THE MODERN iPHONE Get the data you need without ever unlocking your phone. BioState utilizes the latest iOS technology to keep you informed: • Live Activities: See your active timer and current metabolic stage on your Lock Screen. • Dynamic Island: Monitor your progress at a glance while using other apps. • Home Screen Widgets: Beautifully designed widgets to keep your goals front-and-center.

THE "TIME MACHINE" EDITOR Life happens. If you forgot to start your timer, our intuitive "Time Machine" feature allows you to retroactively edit your start time. Your history and metabolic data stay 100% accurate, no matter when you remembered to tap "Start."

PRIVACY & SIMPLICITY Your health data is personal. • No accounts or logins required. • No tracking or personal data collection. • 100% On-Device: Your data never leaves your iPhone.

UPGRADE TO BIOSTATE PRO Take your fasting journey further with Pro features: • Unlimited History: Look back at every fast you’ve ever completed. • Exclusive Widgets: Access premium widget styles for your Home Screen. • Support Independent Devs: Help us continue building the most transparent fasting tool on the App Store.

## Key features

- Fasting timer with metabolic stage visualization
- Live Activities and Dynamic Island integration
- Home Screen widgets
- Retroactive timer editing ('Time Machine')
- On-device data processing
- No account or data collection required

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $9.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/biostate/id6757971507/reviews.md

### 5/5 — Amazing app

*2026-02-23*

Super clean and easy to use. This app makes tracking my water fast simple and motivating, with clear progress updates and helpful reminders. It keeps me accountable without overcomplicating things. Definitely recommend for anyone serious about fasting!

## Frequently asked questions about BioState

### What are the five metabolic stages BioState tracks?

BioState tracks five metabolic stages: Anabolic (0-4h), Catabolic (4-16h), Ketosis (16-24h), Autophagy (24-72h), and Deep Reset (72h+). These stages help users understand their body's biological processes during fasting.

### Can I edit my fasting start time if I forget to log it?

Yes, BioState features a 'Time Machine' editor that allows you to retroactively edit your start time. This ensures your fasting history and metabolic data remain 100% accurate.

### Does BioState collect any personal data?

No, BioState prioritizes privacy. It requires no accounts or logins, does not track users, and all data processing is done 100% on-device, meaning your data never leaves your iPhone.

### What are the benefits of upgrading to BioState Pro?

BioState Pro offers unlimited history to view all past fasts, exclusive premium widget styles for your Home Screen, and supports independent developers. It enhances the fasting journey with more data and customization.

### What iOS features does BioState utilize?

BioState leverages the latest iOS technology, including Live Activities to display your timer and stage on the Lock Screen, Dynamic Island for at-a-glance monitoring, and beautifully designed Home Screen Widgets.

### Is BioState available on Android devices?

Based on the provided data, BioState is currently only supported on iPhones. It utilizes specific iOS technologies like Live Activities and Dynamic Island.

### How often is BioState updated?

The latest version of BioState is 1.0, released on February 20, 2026. While specific update frequency isn't detailed, the app is actively being developed.

### What is the age rating for BioState?

BioState has an age rating of 4+. This indicates it is suitable for a wide range of users interested in health and fitness tracking.

## Version history (last 1 release)

### 1.0 — 2026-02-20

No release notes.

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*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 2026-07-09.*