A native iOS app built by the peptide community. Track doses, reconstitute with confidence, log check-ins, and watch your transformation unfold — all offline-ready and privacy-first.
No more guessing with syringes and calculators. Select your peptide, choose your BAC water volume, and get exact syringe units instantly. Step-by-step instructions walk you through the entire mixing process — from gathering supplies to storage.
Use the Dose Helper to calculate exact syringe units for any target dose. Save reconstituted vials to My Vials and track remaining doses so you always know when it's time to mix a new one. The reconstitution calculator is completely free — no Pro subscription required.
Browse 62+ single peptides and curated blends from a searchable database. Each peptide includes vial sizes, recommended dose ranges, and usage notes so you can make informed decisions.
Create custom protocols tailored to your goals — whether that's fat loss, recovery, anti-aging, or performance. Set target weights, define cycle lengths, and track your weekly progress. Save dosing setups and reuse them across cycles.
Log weight, doses, and daily check-ins that track six key metrics — energy, sleep quality, mood, appetite, soreness, and overall well-being. Watch your trends over time with visual charts, and use the calendar view to see your consistency at a glance.
Smart Insights powered by PepStak's TrendAnalyzer engine automatically surface patterns in your data — like weekly weight loss rate, logging consistency, and protocol adherence. Build streaks by logging daily, and celebrate milestones with confetti animations when you hit your goals.
Numbers tell part of the story — photos tell the rest. Track your physical transformation with secure progress photos. Compare side-by-side across weeks and months to see changes you might not notice in the mirror.
All photos are stored on-device and backed up via iCloud. Your images never touch our servers — complete privacy for your most personal data.
From BPC-157 to Semaglutide, every peptide comes with vial sizes, recommended dose ranges, and reconstitution data baked in.
Unlike other apps in this space, PepStak exists to serve you — not advertisers. Your protocols, your doses, your progress photos — they belong to you and only you. No third-party data sharing. No selling your health information. Ever.
PepStak is actively developed with new features shipping regularly. Here's what's coming next.
PepStak isn't built by a faceless corporation. It's built by a member of the peptide community who was tired of spreadsheets, janky calculators, and apps that sell your data. Every feature exists because real users asked for it.
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