# BioHacker: Quit Caffeine Coach — AI Health Tracker & Decaf Plan

> AI Health Tracker & Decaf Plan (iPhone/iPad app by Mustafa Kandemir.)

- Source: https://appshunter.io/ios/app/biohacker-quit-caffeine-coach/id6766296425 (this page in markdown: same URL + `.md`)
- Developer: [Mustafa Kandemir](https://appshunter.io/developer/1876140984)
- Category: Health & Fitness, Medical
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 16.0 · 17 MB
- Languages: American English, German (Germany), Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Turkish
- Released: 2026-05-07
- Data updated: 2026-10-24

## What is BioHacker?

Quit caffeine or cut back step by step with a gentle Caffeine Reset plan and BioCoach, the AI coach. Track every coffee and see when to have your last one. Plus fasting, lab results, supplements and habits. Free to use. No account, no ads.

-- CAFFEINE (FREE) --
• Log espresso, coffee, tea, energy drinks or any mg amount. One tap: Caffeine widget button (iOS 17.2+), Control Center or Lock Screen (iOS 18+), Siri and Shortcuts
• See the caffeine still in your body and an estimated cutoff for your last coffee, based on your bedtime. Only an estimate: everyone clears caffeine differently.
• Caffeine Reset: your daily limit steps down over 10, 14 or 28 days to quit (0 mg) or cut back, with decaf and lower-caffeine swaps and an optional daily check-in
• Apple Health: caffeine other apps save there counts toward your daily total and limit; your logs can be saved there and are never counted twice

-- MORE FREE TOOLS --
• Fasting: 16:8, 18:6, 20:4, OMAD, 5:2 or a custom 12–72 hour plan, with milestones, a Live Activity and a widget
• Lab results saved by hand; supplements and medications with reminders
• Habits with streaks and Challenges; water log with reminders
• Quit trackers for smoking, alcohol, sugar or your own habit, with milestones and money saved
• Recovery Mode: sick, injured or recovering? Your streak pauses, Readiness shows a recovery guide instead of low-score warnings, and suggestions get gentler.
• Recovery Readiness from HRV, resting heart rate and sleep in Apple Health, or an Estimated score from logged energy
• Breathwork: Box, Relax (4-7-8), Energize and Power Breathing; save sessions to Apple Health as Mindful Minutes
• Nutrition: log meals by hand and save them to Apple Health; food other apps log there shows up in its own card
• US units (lb, fl oz, °F) or metric
• Sleep Analysis, Menstrual Cycle (not birth control), Mood and Body Trackers, Body Clock, Medical Reminders, morning brief, Wellness Score

-- BIOCOACH, THE AI COACH --
Ask about your routine and get one clear next step; 5 free messages a day. Replies come from Anthropic (the company behind Claude), a third-party AI provider. The app asks for your permission before your first AI request. Requests pass through BioHacker's server on Google Cloud, which counts them for daily limits and never stores their content. Health data (sleep, caffeine, lab values…) is added only if you turn on health data sharing; photos are sent only if you allow it. Turn AI or sharing off anytime in Profile > AI.

-- PREMIUM --
• Up to 40 AI requests a day (chat, scans, estimates), photo attachments and a Daily Protocol
• Lab report scans: a plain-language summary from a photo or scan, with the values saved. 1 free trial scan. Not a diagnosis.
• AI Meal Analysis: calories and macros from a photo or description, editable before saving
• Score Breakdown with AI Insight, plus all personal Insights
• Toxin Scanner: snap an ingredient list for an AI estimate of IARC, EFSA, EU and FDA classifications per ingredient. It can make mistakes.

Premium is a monthly or yearly subscription (the yearly plan starts with a 1-week free trial for eligible new subscribers), charged to your Apple Account. It renews automatically unless canceled at least 24 hours before the period ends; manage it in your App Store account settings.

-- YOUR DATA --
Your logs are stored on your device; no account needed. Apple Health is read and written only with your permission. Google Firebase Analytics shows which features are used; turn it off anytime in Profile.

-- IMPORTANT --
BioHacker is not medical advice. It offers general wellness information and does not diagnose or treat any condition. Talk to a health professional before changing your diet, caffeine intake or medication, especially if you are pregnant or have a health condition.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.gamersimulation.com/privacy-policy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Premium | $29.99 | per year |
| Monthly Premium | $4.99 | per month |


## Is BioHacker safe?

Not enough ratings yet to assess BioHacker.

## Is BioHacker legit?

BioHacker: Quit Caffeine Coach appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for BioHacker is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 3.0 — 2026-10-24

What's new in 3.0:
• Log a coffee in one tap: a button on the Caffeine widget (iOS 17.2+), controls for Control Center and the Lock Screen (iOS 18+), and Siri and Shortcuts.
• Apple Health: caffeine other apps save there now counts toward your daily total and your Caffeine Reset limit. Food they log (energy, protein, carbs, fat) shows up in its own card. BioHacker's own entries are never counted twice.
• Your meals (energy, protein, carbs, fat) and breathing sessions (as Mindful Minutes) can be saved to Apple Health.
• Recovery Mode: sick, injured or recovering? Turn it on and your streak pauses and suggestions get gentler until you feel better.
• The first time you use an AI feature, BioHacker asks for your permission before anything is sent. AI requests now pass through BioHacker's server, which never stores their content. Turn AI off anytime in Profile > AI.
• Turn usage analytics on or off in Profile.
• US units: choose lb, in, fl oz and °F, or metric, in Profile > Units.
• We removed an advertising SDK the app never used.
• Fixes and improvements.

### 2.9 — 2026-10-10

What's new in 2.9:
• Toxin Scanner: snap an ingredient label and see which additives are flagged by IARC, EFSA or EU rules, with a calm, sourced summary (Premium).
• 5:2 fasting: pick two low-calorie days a week and track them with your meals.
• New 24-hour fasting milestone: growth hormone rise.
• Caffeine widget for the Home Screen, Lock Screen and StandBy.
• Choose "Reduce Caffeine" when you start, and see today's caffeine on Home.
• Quit trackers now show how much money you've saved.
• Power Breathing, custom supplements and medications, and full history for body and mood entries.
• BioCoach can now use your caffeine plan, sleep stages and supplements (only if you allow it).
• Delete All Data in Profile.
• Fixes for streaks, scores, reminders, sleep and the period tracker.

### 2.8 — 2026-10-05

What's new in 2.8:
• Camera and document scanning: snap a lab report, a meal or a product label instead of picking a photo.
• Medical Reminders now send a notification at the time you choose. Edit, mark as done or delete them.
• Edit or delete meals, lab values, chats, habits, quit trackers, supplements, mood and body entries.
• Save the lab values the AI reads from your report.
• Sleep Analysis and Menstrual Cycle are now in Tools.
• Set your bedtime: caffeine cut-off times now match across the app.
• Edit your name, age, goals and daily targets, and switch on water, sleep, supplement and mood reminders in Profile.
• Fixes for scores, streaks, widgets and the AI coach.

### 2.7 — 2026-09-22

BioHacker 2.7 helps you turn insights into daily habits.

• Turn a BioCoach reply into a daily habit, with an optional reminder.
• See which data contributes to your Readiness Score, what's missing, and when measurements were recorded.
• Start with an optional water or mood check-in and see your first saved result.
• Get clearer caffeine cutoff estimates, more reliable AI chat, and clearer subscription details.

### 2.6 — 2026-09-20

What's new in BioHacker 2.6:

• Caffeine Reset (free): Instead of quitting cold turkey, cut back gradually over 10, 14 or 28 days. See today's limit, what's left, and a suggested cut-off time before bed. Log decaf and other swaps with one tap.
• Morning Brief: Start each day with your score and one practical tip. Just one notification a day, and you choose the time in Profile.
• BioCoach now replies in the language you write in. Pick a reply tone in Profile: Friendly, Direct or Scientific.
• AI settings: Turn health-data sharing with BioCoach on or off anytime in Profile → AI.
• Apple Health: Your data refreshes every time you open the app, and the water and caffeine you log are saved to Apple Health.
• Lab report and meal photo analysis now works with screenshots and HEIC photos.
• Supplements, Body Clock, Fasting and Cessation Tracker are now fully translated in every supported language.
• More reliable storage for long chat histories and meal logs.
• New in Profile: Restore Purchases, Manage Subscription and Redeem Code.
• Fixed a freeze when sending a message with the keyboard open, plus many other fixes.

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All apps by Mustafa Kandemir: https://appshunter.io/developer/1876140984

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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 2026-10-24.*