BioHacker vs Stack

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

Stack keeps the supplements you already take organized — 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 — no nagging. LOG IN ONE TAP Mark a whole time slot taken with a single tap. Skipping is fine too — 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 — 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 — 1 month, $2.99 (USD) Stack Pro Yearly — 1 year, $19.99 (USD) Stack Pro Lifetime — 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