BioHacker vs Stack
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
BioHacker
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BioHacker is the most advanced AI-powered health optimization and longevity platform available. We go beyond simple tracking. BioHacker gives you the tools, data, and artificial intelligence you need to truly understand and optimize your body. Whether you are an experienced biohacker or just beginning your wellness journey, this app delivers a premium, science-backed experience designed to help you live longer, feel stronger, and perform at your peak every single day. -- CORE FEATURES -- AI MEDICAL COACH Your personal, always-available health companion. Chat with our advanced AI assistant to analyze your symptoms, review your supplement routine, interpret your lab results, and receive actionable longevity advice โ all based on your real-time health data. BioHacker AI adapts to your profile and provides personalized guidance with every conversation. ADVANCED INTERMITTENT FASTING TRACKER Take full control of your metabolism. Choose from proven fasting protocols including 16:8, 18:6, 20:4, OMAD, and 5:2, or create a custom plan. Track your progress with a beautiful circular timer and watch your body hit critical biological milestones: fat burning, ketosis, autophagy, and growth hormone spikes โ all visualized in real time. FASTING COMPLETION NOTIFICATIONS Never miss a milestone. BioHacker sends you a smart notification the moment your fasting window is complete, so you can break your fast at exactly the right time โ even if the app is closed. PRODUCT TOXIN SCANNER Stop guessing what is in your food. Use your camera to scan any product label and let our AI instantly analyze the ingredients for hidden toxins, endocrine disruptors, carcinogens, and harmful additives. Know exactly what you are putting into your body. HYDRATION TRACKING Build a bulletproof hydration routine. Log your daily water, coffee, tea, and other beverage intake. Set personalized daily goals and receive smart reminders to keep you on track throughout the day. SUPPLEMENT AND MEDICATION LOG Track every vitamin, mineral, and medication you take. Log dosages, set daily reminders, and let the AI coach analyze your full stack for interactions and optimization opportunities. DAILY BIOSCORE Your personal health grade, calculated every day. BioHacker combines your fasting progress, hydration levels, habit streaks, and cessation milestones into a single, easy-to-understand Readiness Score from 0 to 100. Always know exactly how optimized your body is at a glance. HABIT BUILDER Create and track daily health habits that stick. Whether it is cold exposure, meditation, journaling, or exercise, BioHacker helps you build streaks and stay accountable. CESSATION TRACKER Quitting smoking, alcohol, caffeine, or sugar? Track your progress with detailed streak counters, health recovery timelines, and money saved calculations. Every day clean is a victory. BREATHING EXERCISES Access guided breathing protocols designed to reduce stress, improve focus, and optimize your nervous system. From box breathing to the Wim Hof method, find the technique that works for you. -- WHY BIOHACKER -- - All your health data in one place - AI that learns and adapts to your unique profile - Beautiful, premium dark interface designed for daily use - Offline-first architecture โ your data stays on your device - No ads, no clutter, just results -- IMPORTANT NOTICE -- BioHacker and its AI assistant provide informational health insights only. This app does not provide medical diagnoses, treatment recommendations, or professional medical advice. Always consult a qualified healthcare provider before making any medical decisions or changes to your health routine. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.gamersimulation.com/privacy-policy
Stack
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Stack keeps the supplements you already take organized โ build your stack, get one calm reminder per moment, and log everything in a single tap. BUILD YOUR STACK Add the supplements you take, with your own doses and your own times. Pick from a small library of common gym supplements or add anything custom. Every library entry is general information with a cited public source. ONE REMINDER PER MOMENT Items due at the same time arrive as one notification, not five. Quiet hours are respected, and one gentle re-prompt is the maximum โ no nagging. LOG IN ONE TAP Mark a whole time slot taken with a single tap. Skipping is fine too โ history stays neutral, with no streaks and no guilt. TIMING NOTES, NOT ALARMS When your own schedule puts two items together that are commonly taken apart, Stack shows a quiet, dismissible note. Information, never alerts. STACK PRO Free keeps full tracking for up to 5 items, with reminders. Pro unlocks unlimited items, multiple stacks (cut / bulk), training-day schedules, and history export. Stack is an organizer. It shows general information from cited public sources โ it does not give medical advice, recommend supplements, or suggest doses. Talk to a healthcare professional about what's right for you. SUBSCRIPTION DETAILS Stack Pro Monthly โ 1 month, $2.99 (USD) Stack Pro Yearly โ 1 year, $19.99 (USD) Stack Pro Lifetime โ one-time purchase, $49.99 (USD) Prices are in USD and may vary by storefront. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is 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 current period. Manage or cancel subscriptions in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://akselcb-sketch.github.io/stack-legal/privacy.html
Screenshots
Verdict
BioHacker and Stack are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. BioHacker sells 2 in-app purchases, starting at $4.99 per month and Stack sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | BioHacker | Stack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | โ |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 16.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Mustafa Kandemir | HELGE JOHANNESSEN BJORLAND |
In-app purchases
BioHacker
- Monthly Premium$4.991 Month
- Yearly Premium7 Days trial$29.991 Year
Stack
- Stack Pro Monthly$2.991 Month
- Stack Pro Yearly$19.991 Year
- Stack Pro Lifetime$49.99









