Comparison

MyPepTracker vs StackProof

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MyPepTracker

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MyPepTracker is the most complete peptide protocol companion for iOS. Log and track every aspect of your peptide, GLP-1, and supplement stack — from reconstitution math to half-life pharmacokinetics, body transformation photos, and automatic iCloud sync. Your data lives in your iCloud account and never touches a third-party server. DOSE LOGGING & VIALS • Log doses with injection site, volume, notes, and backdating • Color-coded vial gauge shows mcg remaining and doses left at your current dose size • Vial burn-rate tracking with depletion countdown • Injection site rotation — recommends your most-rested site based on history • Log Session: dose your entire stack at once in one sheet • Cycle analytics: doses per week, total mcg delivered, injection site breakdown HALF-LIFE & PHARMACOKINETICS • Estimated serum concentration curves over ±48 hours for 100+ compounds • Sparkline decay curves on every Today card • Symptom overlay — see when side effects peak relative to compound levels • Standalone symptom logging at any time, with clustering pattern insights GLP-1 TITRATION • Auto-advancing titration protocols for Semaglutide, Tirzepatide, and Retatrutide • Tracks current phase, dose, and weeks until next escalation • Pre-fills the dose log with your current titration dose automatically SUPPLEMENTS & BLENDS • Track supplements from an 800+ item preset library or as custom entries with any dose unit • Custom blends for pre-mixed vials (CJC/Ipamorelin, BPC-157+TB-500) with locked component ratios BODY & PROGRESS • Body metrics: weight, waist, neck, chest, back, biceps, thighs, and body fat % • Progress photos with front/side/back/custom categories and side-by-side before/after comparison • Apple Health — reads sleep, resting HR, and HRV for protocol correlation; writes weight and body fat EXPORT & DATA • Protocol Summary PDF — polished one-page overview for your provider or records • Full data CSV export: peptides, vials, doses, symptoms, and body measurements in one file • Import dose history from JSON or CSV • Home Screen widget shows your next scheduled dose at a glance ICLOUD SYNC • Syncs automatically to iCloud — delete and reinstall and your data comes back • Install on a second device signed into the same Apple ID and your data follows you • No account required — uses your existing iCloud login PRIVACY • All data lives in your iCloud account — Apple's infrastructure only • No analytics, no tracking, no ads 100+ compound presets across GLP-1s, growth peptides, BPC/TB, nootropics, and more — with half-life data sourced from published literature.

About

StackProof

Features
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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

MyPepTracker4 screens
StackProof4 screens

Verdict

The call

The clearest difference is in-app purchases: MyPepTracker at none against StackProof's 3. StackProof's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StackProof sells 3 in-app purchases, starting at $1.99 per month. MyPepTracker asks for nothing beyond the download.

UpkeepUpdate frequency

MyPepTracker ships an update every 4 weeks, StackProof weekly. The most recent releases landed on September 5, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 3 level
MyPepTracker versus StackProof: the parameters behind the verdict, then further details
ParameterMyPepTrackerStackProof
PriceFreeFree
Update frequencyEvery 4 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size8 MB42 MB
Age rating17+4+
DeveloperGregory Royjoel Saucedo Lozano

In-app purchases

None

MyPepTracker

No in-app purchases

3 purchases

StackProof

Subscriptions2
  • Monthly$1.991 Month
  • Yearly$34.991 Year
One-time1
  • Lifetime$59.99

Questions

Is MyPepTracker free?
MyPepTracker is free to download, with no in-app purchases.
Is StackProof free?
StackProof is free to download, with in-app purchases available.
Do MyPepTracker or StackProof have ads?
Neither MyPepTracker nor StackProof shows ads.
Which is updated more often, MyPepTracker or StackProof?
MyPepTracker ships an update every 4 weeks, and StackProof weekly. Most recently, MyPepTracker was updated on September 5, 2026 and StackProof on September 15, 2026.

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