Comparison

PepStack vs OptyPeptides

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

Head to head
About

PepStack

Read full description

PepStack – Stacks, Vitals, Blood & Training Plan your stack. Track your progress. See what actually works. PepStack is built for people who take their supplements seriously — and want to see how their stack relates to their body, blood and performance. Instead of five apps and a spreadsheet, it’s all in one place, neatly connected and fully private. Four areas, one picture: Stacks Build custom supplement stacks: compound, amount, dosage, schedule and phases — exactly how you run them. A visual plan shows what’s due when, and reminders make sure you never miss a dose. Vitals Connect Apple Health or Health Connect to pull in steps, sleep, resting heart rate, HRV and more automatically — or log your own metrics by hand. See how your routine shows up in daily life. Blood Log your blood tests — manually or via photo/PDF scan — and keep 100+ markers in view. With a plain-language marker wiki, personal reference ranges, trend charts and a side-by-side comparison of two tests (improved / worse / stable). Training Log your workouts, sets and progress and close the loop: stack, recovery and performance in one app. Everything in context The real value isn’t single numbers — it’s the full picture. Watch how your stack, vitals, blood markers and training move together over time, and make better decisions for yourself. Private by design Sensitive data is end-to-end encrypted — only you have access. Secure cloud backup & sync across your devices. No data sales. Your data is yours. Full stop. Who’s it for? Biohackers, athletes, self-optimizers and anyone ready to move their supplement routine from sticky notes to a clean, data-driven system. Stop guessing. Start tracking. Get PepStack. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://www.pepstack.net/de/privacy Support: https://www.pepstack.net/contact

About

OptyPeptides

This app helps users discover, track, and optimize peptide protocols with smart recommendations. It provides clarity, structure, and insights for both beginners and experienced users, simplifying complex stacking processes.

Highlights
  • Smart peptide recommendations
  • Protocol tracking
  • Protocol optimization
  • User-friendly interface
  • Insightful data visualization
Features
Read full description

OptyPeptides is the only peptide tracker built with smart recommendations, helping you confidently start, track, and optimize your peptide protocols. Whether you're just getting started or refining your stack, OptyPeptides gives you the clarity, structure, and insights you need without the overwhelm.

Screenshots

PepStack4 screens
OptyPeptides4 screens

Verdict

The call

The clearest difference is in-app purchases: OptyPeptides at none against PepStack's 2. PepStack's advantage is update cadence (every 2 days vs fortnightly) and iOS requirement (15.5 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. PepStack sells 2 in-app purchases, starting at $2.99 per month. OptyPeptides asks for nothing beyond the download.

UpkeepUpdate frequency

PepStack ships an update every 2 days, OptyPeptides fortnightly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
PepStack versus OptyPeptides: the parameters behind the verdict, then further details
ParameterPepStackOptyPeptides
PriceFreeFree
Rating—5.0 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 2 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size85 MB15 MB
Age rating4+17+
DeveloperMax BerktoldOptiSelf LLC

In-app purchases

2 purchases

PepStack

Subscriptions2
  • PepStack Premium (Monthly)$2.991 Month
  • PepStack Premium (Yearly)$22.991 Year
None

OptyPeptides

No in-app purchases

Questions

Is PepStack free?
PepStack is free to download, with in-app purchases available.
Is OptyPeptides free?
OptyPeptides is free to download, with no in-app purchases.
Do PepStack or OptyPeptides have ads?
Neither PepStack nor OptyPeptides shows ads.
Which is updated more often, PepStack or OptyPeptides?
PepStack ships an update every 2 days, and OptyPeptides fortnightly. Most recently, PepStack was updated on October 7, 2026 and OptyPeptides on October 12, 2026.

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