Biolyze vs PepStack Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Biolyze
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Magnesium oxide: of a 500 mg dose, roughly 20 mg reaches your bloodstream. That number is on no label. Biolyze reads the back of the tub and tells you what actually arrives. Point your camera at the ingredient list. Biolyze identifies the compound form, the dose and the fillers — then works out how much your body can absorb. No brand rankings. No recommendations. Just what is in there. The app knows 113 ingredients by name: vitamin D3, B12, iron, magnesium, zinc, omega-3, creatine, whey, collagen, probiotics, mushroom extracts, adaptogens and more. TIMING CHANGES EVERYTHING The best supplement does nothing at the wrong hour. Calcium blunts iron absorption. Minerals and thyroid tablets need space between them. Vitamin D needs fat. Biolyze works out the gaps and speaks up when the moment fits — not at eight sharp because eight came around. Your open intake window sits on your lock screen with a live countdown. IS IT WORKING? NOT A FEELING. A NUMBER. With creatine you notice it in the gym. With iron, B12 or vitamin D you feel nothing at all — you take it and hope. Photograph your lab report. Biolyze reads over 50 blood markers, explains each one in a sentence, and remembers where you started. When the next report comes in, before and after sit side by side. And if nothing moved, the app says so too. IT LEARNS WHAT YOU ARE AFTER Tell it in one sentence — building muscle, more energy, sleeping better, a calmer gut. Biolyze knows 26 topics and points everything at yours: which markers matter, which gaps apply, what you read in the morning. If you take medication, the app checks it against your supplements for known interactions. Those warnings stay free forever. YOUR DAY Morning: one sentence about your night. No score out of ten. Daytime: your intake window, when it is open. Evening: three short questions, 40 seconds. Your pattern grows from those. WHAT IT COSTS The scanner, your shelf and every interaction warning stay free — no account, no card. Biolyze Pro: 7 days free, then $9.99 a month or $59.99 a year. Biolyze reads your training and sleep data only to keep you company, and writes nothing back. No ads. Nothing sold on. Biolyze is not a medical device, makes no diagnoses, and never replaces advice from a doctor or pharmacist. Terms of Use (EULA): https://www.biolyze.app/agb.html Privacy Policy: https://www.biolyze.app/datenschutz.html Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage and cancel in your Apple Account settings.
PepStack Pro
This app provides a comprehensive database of peptides, personalized protocol recommendations, and tools to track your peptide journey. Monitor injections, log progress, and check for interactions to optimize your health and wellness goals safely.
- Peptide database with clinical data
- Personalized peptide recommendations
- Interaction checker for peptide safety
- Physician-designed protocol templates
- Injection schedule and dose tracking
- Lab and progress journaling
- Direct physician connection
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PepStack Pro is the most comprehensive peptide reference and protocol tracking app available. Whether you're exploring your first peptide or managing an advanced stack, PepStack Pro gives you the clinical data, dosing protocols, and tracking tools you need to optimize safely. PEPTIDE DATABASE Browse 40+ peptides with detailed clinical information including descriptions, mechanisms of action, and side effects. From BPC-157 to semaglutide, GHK-Cu to epithalon — it's all here. PERSONALIZED STACKS Take our guided quiz to find the right peptides for your goals — fat loss, muscle growth, longevity, sleep, cognitive enhancement, healing, and more. Get expert-curated recommendations tailored to your goals. INTERACTION CHECKER Check for potential conflicts between peptides before adding them to your stack. Know what's safe to combine, what needs caution, and what to avoid. PROTOCOL TEMPLATES Start with physician-designed protocol templates for common goals like fat loss, recovery, muscle building, and longevity. One tap to set up your entire protocol. PROTOCOL TRACKER Set up your injection schedule, track your daily doses, and never miss a pin. Full calendar view with cycle tracking, dose amounts, and scheduling by day of the week. INJECTION LOGGER Log every injection with site rotation tracking, mood ratings, and personal notes. Build a complete history of your peptide journey. LAB TRACKER Track bloodwork and lab results over time. Monitor 28+ biomarkers with color-coded reference ranges to ensure your protocols are working safely. PROGRESS JOURNAL Document your journey with notes, mood and energy ratings, and photos. See trends over time and share progress with your provider. DOSING PROTOCOLS (Premium) Unlock detailed dosing protocols, reconstitution guides, cycle lengths, optimal timing, and stacking recommendations for every peptide in the database. PHYSICIAN-GUIDED Connect directly with board-certified physicians specializing in peptide therapy and longevity medicine through our integrated MyFlowMD provider network. DISCLAIMER PepStack Pro is an educational reference tool. It does not provide medical advice, diagnoses, or treatment recommendations. Always consult a qualified healthcare provider before starting any peptide protocol. Terms of Use: https://www.pepstackpro.com/terms
Screenshots
Verdict
Biolyze and PepStack Pro 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. Biolyze sells 5 in-app purchases, starting at $8.99 per month and PepStack Pro sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
Biolyze ships an update every 9 days, PepStack Pro every 8 days. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.
| Parameter | Biolyze | PepStack Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (11 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 116 MB | 39 MB |
| Age rating | 12+ | 17+ |
| Developer | A&K Worldwide Enterprises FZCO | MyFlowMD, LLC |
In-app purchases
Biolyze
- Biolyze Premium Monthly$8.991 Month
- Biolyze Premium Yearly7 Days trial$49.991 Year
- Biolyze Single Scan$3.99
- Biolyze 3-Pack Scans$8.99
- Biolyze 10-Pack Scans$24.99
PepStack Pro
- PepStack Pro Premium7 Days trial$8.991 Month
- PepStack Pro Premium7 Days trial$49.991 Year









