Peptide Protocol vs Peptly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Peptide Protocol
This app helps users track peptide doses, manage vial inventory, and monitor weekly insights like energy, sleep, and mood. It offers a reconstitution calculator and features for biohackers and longevity enthusiasts, with local-first data storage for privacy.
- Dose logging for peptides
- Reconstitution calculation helper
- Vial inventory with refill reminders
- Weekly insight charts (energy, sleep, mood, weight)
- Protocol pausing and auto-resuming
- Injection site rotation
- Side-effect pattern review
- Local-first data storage
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Peptide Protocol is a shot log for people following a peptide or GLP-1 routine their clinician set. Log every dose in seconds: the compound, the amount you took and the injection site, exactly as you enter them. Get reminders at the times you choose. Rotate injection sites with a body map that shows where you went last. Keep track of your vials: what you have on hand, mix and expiry dates, and refill alerts before you run out. Check in on energy, sleep, appetite, side effects and weight, and see your own logs side by side week by week. Works for semaglutide, tirzepatide, BPC-157, CJC-1295, ipamorelin, GHK-Cu and 30+ more compounds. Pause a protocol with a return date and it picks up again on the day you choose. Your records stay on your iPhone. IMPORTANT Peptide Protocol is a personal log. It does not compute, suggest, recommend or adjust doses, and it does not provide medical advice, diagnosis or treatment. Enter the dose and amounts your prescriber gave you, and talk to a qualified healthcare professional before any medical decision. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://peptide-protocol.app/privacy/ Terms of Service: https://peptide-protocol.app/terms/
Peptly
This app helps you privately log peptide usage, track weight trends, and set reminders for injections. It offers features like injection site suggestions, vial notes, and estimated peptide levels based on your data. Designed for personal record-keeping, it keeps your health information secure on your device.
- Private peptide logging
- Injection reminders
- Weight tracking with trend analysis
- Vial notes and management
- Estimated peptide levels
- Injection site suggestions
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Peptly is a private log for the peptides you already use. Write down each entry, get a reminder when the next one is due, follow your weight over time, and keep notes on your vials. Every peptide amount in Peptly is one you typed. FREE • Log one peptide, with Today and a reminder • Injection sites, with your next site suggested from your log • Your weight, with a 30-day trend • The last 30 days of your history • Plain-language profiles of 23 peptides PEPTLY PRO • Stacks: log every peptide you use • Unlimited reminders, with Log and Skip right in the notification • Your full history, with CSV export • Your long-range weight trend, and a 30-day projection: an estimate from your own entries if your recent trend continues, not a prediction or medical advice • Estimated levels for semaglutide and tirzepatide, from your own log and published half-lives. Estimated, not measured. • Vials: what the label says, the date and your notes, exactly as you wrote them TODAY See what's planned today. Log an entry as planned with one tap, or skip it, and your history stays complete. INJECTION SITES Pick a site as you log, and Peptly suggests the one you used longest ago, so rotating is easy. PRIVATE BY DESIGN No account to create. Your log stays on your iPhone or iPad. Peptly Pro is an auto-renewing subscription (weekly, monthly or yearly) or a one-time lifetime purchase; your region's price shows in the app before you buy. Payment is charged to your Apple ID account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel them in your Apple ID account settings. Peptly is a personal record-keeping tool. It never calculates, suggests or recommends an amount to take, and it is not medical advice. Follow the directions of your healthcare provider. Terms of Use: https://thepeptly.com/terms/ Privacy Policy: https://thepeptly.com/privacy/
Screenshots
Verdict
The clearest difference is monetization model: Peptly at freemium against Peptide Protocol's subscription. Peptly also leads on ads (none vs shown). On price, rating, ratings volume and update cadence 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. Peptide Protocol sells 9 in-app purchases, starting at $4.99 per 7 days and Peptly sells 10 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Peptide Protocol holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 14 and 34 respectively.
Peptide Protocol ships an update every 5 days, Peptly weekly. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.
| Parameter | Peptide Protocol | Peptly |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (14 ratings) — better | 4.8 (34 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 | 34 — better |
| Update frequency | Every 5 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 100 MB | 29 MB |
| Age rating | 12+ | 12+ |
| Developer | Ludovic PUAUD | Baris Bingor |
Customer experience
Peptide Protocol
Peptly
In-app purchases
Peptide Protocol
- Pro Weekly2 variants$4.997 Days
- Pro Monthly$7.991 Month
- Pro Monthly$9.991 Month
Show 5 moreShow fewer
- Pro Yearly — Special Offer$34.991 Year
- Pro Yearly$44.991 Year
- Pro Yearly$59.991 Year
- Pro Yearly Trial7 Days trial$59.991 Year
- Pro Yearly — First Year Offer1 Year trial$59.991 Year
- Pro Lifetime$99.99
Peptly
- Peptly Pro Weekly$0.997 Days
- Peptly Pro Weekly7 Days trial$1.997 Days
- Peptly Pro Weekly$2.997 Days
Show 4 moreShow fewer
- Peptly Pro Weekly$4.997 Days
- Peptly Pro Yearly$19.991 Year
- Peptly Pro Yearly$29.991 Year
- Peptly Pro Yearly$49.991 Year
- Peptly Pro Lifetime$29.99
- Peptly Pro Lifetime$49.99
- Peptly Pro Lifetime$79.99









