Flexwell AI Supplement Coach vs StackProof
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flexwell AI Supplement Coach
This app helps you track your supplements, medications, and health data to understand potential correlations. It visualizes trends in sleep, recovery, and heart rate to help you make informed wellness decisions.
- Track supplements, medications, and peptides
- Connect health data and wearable metrics
- View trends in sleep, recovery, and heart rate
- Correlate wellness routine with health changes
- Receive proactive wellness insights
- Organize daily supplement stack
- Make informed wellness decisions
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Flexwell is a smarter way to track your supplements, medications, peptides, and health data together. Most wellness apps help you log habits. Flexwell goes further. Flexwell helps you connect what you take with what may be changing in your body. Add your supplements, medications, peptides, vitamins, minerals, and wellness products, then connect supported health data to see how your routine may relate to sleep, recovery, heart rate, activity, and other wellness trends over time. Instead of simply tracking your stack, Flexwell helps you understand it. Did your deep sleep improve after starting melatonin? Did your resting heart rate trend down after adding magnesium? Did your recovery score change after adjusting your routine? Flexwell is designed to help surface these types of patterns so you can better understand what may be helping, what may not be, and what deserves a closer look. Flexwell also gives you proactive insights about your wellness routine. As your data changes, Flexwell can help highlight meaningful trends, celebrate positive improvements, and bring attention to changes you may want to review. Your supplement routine should not live in a notes app. Your health data should not sit disconnected from what you take every day. Flexwell brings both together in one simple, intelligent dashboard. With Flexwell, you can: • Track supplements, medications, peptides, vitamins, minerals, and wellness products • Connect supported health data and wearable metrics • View trends in sleep, recovery, heart rate, activity, and more • See how your wellness routine may correlate with changes in your health data • Get proactive insights when meaningful patterns appear • Better understand what may be helping you feel, sleep, and recover better • Organize your daily stack in one place • Make more informed wellness decisions over time Flexwell is built for people who want to stop guessing and start understanding. Whether you are taking a simple daily vitamin stack or managing a more advanced wellness routine, Flexwell helps you see the bigger picture. Track what you take. Watch what changes. Learn from your data. Your body is already giving you signals. Flexwell helps connect the dots. Terms of Service: https://flexwell.com/terms Privacy Policy: https://flexwell.com/privacy Flexwell is a wellness tracking tool and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your supplements or medications. Disclaimer: Flexwell is for informational and wellness tracking purposes only. Flexwell does not provide medical advice, diagnosis, treatment, or medication management. Always talk to a qualified healthcare professional before starting, stopping, or changing any supplement, medication, peptide, or health routine.
StackProof
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Most people take supplements and hope for the best. StackProof turns that guesswork into a real personal experiment so you finally know what's working, what's not, and what's worth keeping. HOW IT WORKS StackProof uses a simple 3-phase method used in clinical research, adapted for everyday use: 1. Baseline Phase - Log how you feel for 7 days without taking the supplement. This captures your natural normal. 2. Active Phase - Start taking your supplement daily and keep logging. 60 seconds a day. 3. Review - See a clear before vs after comparison across every metric that matters to you. No guessing. No placebo. Just your own data telling you the truth. WHAT YOU TRACK Every day you log 5 metrics on a simple 1-5 scale: - Energy - Focus - Mood - Sleep Quality - Side Effects Over time, StackProof shows you exactly how each metric shifted from your baseline to your active phase, with a confidence rating based on your consistency. SMART BASELINE After your first experiment, StackProof learns your patterns. On future experiments it can detect when you have enough recent data to skip the waiting period and start the active phase immediately. BUILT FOR REAL BIOHACKERS StackProof is designed for people who take their optimization seriously. Whether you're testing Lion's Mane for focus, Magnesium for sleep, Ashwagandha for stress, or anything else, every experiment gives you a clean structured result you can actually act on. STACKPROOF PRO Unlock the full experience: - Unlimited simultaneous experiments - Full analytics with trend charts across 7, 30, and 90 days - Smart Baseline - skip waiting periods using your recent data - Unlimited experiment history - Custom metrics beyond the default 5 - Data export to CSV - Washout period reminders Start with a free 7-day Pro trial. No charge until the trial ends. Cancel anytime. YOUR DATA Your logs are private and stored securely. StackProof never sells your data or uses it for advertising. Start your first experiment today. Your stack deserves an honest test. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Flexwell AI Supplement Coach and StackProof are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Flexwell AI Supplement Coach sells 2 in-app purchases, starting at $4.99 per month and StackProof sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Flexwell AI Supplement Coach ships an update every 5 days, StackProof weekly. The most recent releases landed on August 5, 2026 and September 15, 2026 respectively.
| Parameter | Flexwell AI Supplement Coach | StackProof |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 49 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Micawber Media LLC | joel Saucedo Lozano |
In-app purchases
Flexwell AI Supplement Coach
- Flexwell Premium Monthly$4.991 Month
- Flexwell Premium Yearly$49.991 Year
StackProof
- Monthly$1.991 Month
- Yearly$34.991 Year
- Lifetime$59.99





