Comparison

PepPedia vs PepStack

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

Head to head
About

PepPedia

An educational reference for peptide research, offering a comprehensive library of peptide profiles, personal tracking tools for notes and inventory, and helpful math calculators. Securely sync your data across devices to stay organized and informed.

Highlights
  • Peptide research library
  • Personal notes and logs
  • Inventory and expiration tracking
  • Personal metrics logging
  • Reconstitution calculator
  • Concentration math helper
Features
Read full description

PepPedia is an educational reference companion for those researching peptides. Browse information, track your personal notes, and stay organized. Research Library • Browse 70+ peptide profiles with detailed information • Molecular data, mechanisms of action, and published research • Citations and references to scientific studies • Save compounds to your personal library Personal Journal • Create notes and logs for your own records • Timestamp entries and add personal annotations • Organize by category • View your complete history Inventory Organizer • Track supplies, quantities, and expiration dates • Get low-stock and expiration reminders • Stay organized Personal Metrics • Log weight and personal notes • Track trends over time Math Tools • Reconstitution calculator (generic unit conversion) • Concentration math helper • All values entered by user - no recommendations made PepPedia Pro • Unlock additional features including extended tracking, data exports, and more. Your data syncs securely across devices. Start tracking smarter today. This app does not provide medical advice, diagnoses, or treatment recommendations. Information is for educational purposes only. Consult a healthcare provider for medical decisions. Terms of Service (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pep-pedia.org/privacy

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

Screenshots

PepPedia4 screens
PepStack4 screens

Verdict

The call

PepPedia and PepStack 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PepPedia sells 2 in-app purchases, starting at $6.99 per month and PepStack sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

ScorecardNo meaningful differences
PepPedia versus PepStack: the parameters behind the verdict, then further details
ParameterPepPediaPepStack
PriceFreeFree
Rating3.7 (63 ratings) — better—
Positive reviews52.9% of reviews—
Number of ratings63 — better—
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.1 — better15.5
Further details — not scored
Size77 MB85 MB
Age rating17+4+
DeveloperPepPedia, Inc.Max Berktold

In-app purchases

2 purchases

PepPedia

Subscriptions2
  • Peppedia Pro Monthly1 Month trial$6.991 Month
  • Peppedia Pro Yearly$19.991 Year
2 purchases

PepStack

Subscriptions2
  • PepStack Premium (Monthly)$2.991 Month
  • PepStack Premium (Yearly)$22.991 Year

Questions

Is PepPedia free?
PepPedia is free to download, with in-app purchases available.
Is PepStack free?
PepStack is free to download, with in-app purchases available.
Do PepPedia or PepStack have ads?
Neither PepPedia nor PepStack shows ads.
Which is updated more often, PepPedia or PepStack?
PepPedia ships an update every 2 days, and PepStack every 2 days. Most recently, PepPedia was updated on October 6, 2026 and PepStack on October 7, 2026.

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