Peptide Protocol+ vs PepstackAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Peptide Protocol+
This app helps researchers manage peptide cycles with detailed protocol building, smart reminders, and progress tracking. It includes a built-in library for quick reference and prioritizes user privacy with local data storage and PIN protection.
- Build peptide cycles with dosage and frequency
- Smart dose reminders
- Review cycle history and add notes
- Built-in peptide library
- Local data storage and PIN protection
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Peptide Protocol+ is the simplest peptide app on the market — built for researchers, by researchers. BUILD PROTOCOLS Set up peptide cycles with dosage, titration, frequency, and reconstitution details, all in one place. STAY ON SCHEDULE Smart reminders make sure you never miss a dose. REVIEW PROGRESS Analyze your cycle history, add research notes, and refine your stack over time. LEARN AS YOU GO A built-in peptide library gives you key reference info at a glance. PRIVATE BY DESIGN Your data stays on your device. Lock the app with a PIN, and your research data and PIN are encrypted locally — nothing is shared with third parties. Peptide Protocol+ is designed exclusively for research and educational purposes. Peptides discussed in this app may be research chemicals not approved for human use by the FDA or equivalent regulatory bodies in your country.
PepstackAI
This app helps you manage your supplement intake based on your personal routine and health goals. It provides personalized recommendations with research-backed reasoning and schedules them around your daily activities, avoiding potential conflicts.
- Personalized supplement recommendations
- Routine-based scheduling
- Conflict flagging for supplements
- Research-backed product information
- Peptide reference library
- Intake logging and data export
- Offline functionality
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Pepstack helps you take the right supplements at the right time, built around your real routine, not a generic label. HOW IT WORKS Tell Pepstack your goals, your diet, and anything that's bothered you before. It builds a personalized shortlist from a catalog of real, sourced products, every pick shows the reason it was chosen, whether that's your goal, your diet, or a reaction you flagged. YOUR SCHEDULE, NOT A GENERIC ONE Add anything to your daily schedule and Pepstack places it around your actual day, your meals, your sleep window, instead of just a flat list of times. Known timing conflicts (like zinc and iron needing space between them) are flagged before they become a problem. BUILT ON REAL RESEARCH Every product in the catalog links back to real, verifiable research citations, not marketing copy. Ask a question and get an answer sourced from that same catalog, with a way to report anything that looks wrong. A REFERENCE LIBRARY, NOT A DOSING TOOL Pepstack also includes a peptide reference library for research purposes: what each one is, its general category, and research trends. It does not provide doses, protocols, or injection guidance for peptides. TRACK WHAT YOU ACTUALLY TAKE Log what you've taken, see your streak, and export your own data whenever you want. Your account and everything in it can be deleted at any time, right from the app. Pepstack works offline for your day-to-day tracking and syncs when you're back online. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.pepstack.fit/privacy.html
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Verdict
The clearest difference is rating: PepstackAI at 5.0 against Peptide Protocol+'s 3.5. Peptide Protocol+'s advantage is in-app purchases (none vs 2) and update cadence (daily vs every 11 days). On price, ratings volume, 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
Both are free to download. PepstackAI sells 2 in-app purchases, starting at $4.99 per month. Peptide Protocol+ asks for nothing beyond the download.
PepstackAI holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
Peptide Protocol+ ships an update daily, PepstackAI every 11 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | Peptide Protocol+ | PepstackAI |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Daily — better | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 18 MB |
| Age rating | 4+ | 17+ |
| Developer | JUSTIN MICHAEL CIFELLI | Deepak Kumar |
Customer experience
Peptide Protocol+
PepstackAI
In-app purchases
Peptide Protocol+
No in-app purchases
PepstackAI
- Pepstack Pro (Monthly)$4.991 Month
- Pepstack Pro (Yearly)$49.991 Year








