Comparison

The Peptide App vs ProtoPep

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

Head to head
About

The Peptide App

This app helps you manage your peptide vials, create custom schedules with reminders, and track your progress with various health metrics. It also includes a peptide library for research and vendor price comparisons. All features are free to use.

Highlights
  • Manual vial tracking with photos and notes
  • Customizable schedules and reminders
  • Protocol and stack organization
  • Peptide library and research resources
  • Progress tracking for health metrics
  • Vendor price comparison
Features
Read full description

The Peptide App brings your vial records, schedules, reminders, research, and progress together. Every feature is free, with no subscription. Manual vial tracking Keep a personal record of each vial, including its name, label text, photo, supplier, lot, dates, and notes. Choose its status yourself and add dated activity entries. Your records reflect the information you enter. Schedules and reminders Create your own schedule using information you already have. Set your own times, receive reminders, and log, reschedule, or skip an entry. Start a schedule from a vial's name, then review your entries before saving. Protocols and stacks Organize multiple items and keep their schedules together. Peptide library and research Explore educational peptide information and source references. Keep topics you want to discuss with your healthcare provider close at hand. Progress tracking Record weight, body measurements, sleep, energy, mood, recovery, lab markers, and other metrics that matter to you. Add progress photos and review check-ins over time. Vendor prices Browse vendor pricing alongside peptide information. Private by default Your records and photos are yours. We don't sell your data, and you can delete your account anytime. The Peptide App is for educational and informational purposes only and is not medical advice. Always consult a qualified healthcare provider about medication and treatment decisions. By using The Peptide App you consent to the standard App Store End User License Agreement. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ProtoPep

This app helps users track injectable medications, including peptide blends and GLP-1 treatments. It automates complex calculations for reconstitution and titration, manages inventory, and provides detailed summaries for healthcare providers. Syncs data privately across devices with optional alerts.

Highlights
  • Automated reconstitution math
  • Peptide blend scheduling
  • Weekly titration tracking
  • Missed-dose alerts
  • Vial inventory management
  • Provider PDF summaries
  • CSV data export
Features
Read full description

The injectable tracker that does the math and syncs across all your devices. ProtoPep is built for people who draw their own dose. It handles compounded vial reconstitution, weekly titration ladders, peptide blends as first-class objects, and multi-peptide stack scheduling, with iCloud sync, missed-dose alerts, a print-ready PDF summary for your provider, and CSV export of every record. WHO USES PROTOPEP GLP-1 users on semaglutide, tirzepatide, or compounded vials. Track your weekly shot, your titration step, and your weight trend together in one screen. Peptide users running BPC, TB-500, CJC, Ipamorelin, GHK-Cu, or custom blends. Schedule cycles, log injection sites, and always know which vial is fresh. WHAT SETS PROTOPEP APART Reconstitution math in both directions. Forward (vial mg plus BAC water to mL and units) and reverse (target dose plus draw volume to BAC water needed). A visible insulin syringe shows the fill level, and you can save calculations to a vial so you never re-enter them. iCloud syncs with no account and no login. Lose your phone and restore everything across iPhone and iPad. Your data stays in your private iCloud, never on third-party servers. Blends as first-class objects. A vial holding BPC plus TB-500, or CJC plus Ipamorelin, is a single entry with its component breakdown stored for accurate math. Titration ladders built in. Semaglutide 0.25 to 2.4 mg, tirzepatide 2.5 to 15 mg, or fully custom, with graduation countdowns and one-tap step holds. Missed-dose alerts that work. A second reminder arrives 30 minutes after the scheduled time if you have not logged, deep-linking straight to log as taken. Inventory measured in doses, not mg. See how many doses remain and when a vial expires. Logging a dose deducts it automatically. One-tap provider summary. Turn your protocols, adherence, and weight trend into a clean, print-ready PDF. Choose a date range, then share or print it for your provider. CSV export for every record, ready for your own spreadsheet or files. BUILT FOR PEOPLE LEAVING SPREADSHEETS ProtoPep is for anyone who has been running a Google Sheet, screenshotting a pharmacy receipt, and double-checking math late at night. Same job, better tool. DESIGN Dark mode first. Tabular numerals on every dose, mg, and streak. Haptic feedback on every log. One primary action per screen. Designed for quick, real-world use. PRICING Start with a 7-day free trial on the yearly plan. Choose Monthly, Yearly, or Lifetime when you subscribe. See in-app pricing for current rates. Cancel anytime in your Apple ID subscription settings. SUBSCRIPTION TERMS ProtoPep offers auto-renewable subscriptions billed through your Apple ID. Payment is charged at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends, at the same price as the previous period. Manage subscriptions and turn off auto-renewal in your Apple ID settings after purchase. Privacy Policy: https://aanthonyle28.github.io/protopep-status/privacy.html Terms of Use: https://aanthonyle28.github.io/protopep-status/terms.html PRIVACY ProtoPep stores your data on your device and, optionally, in your private iCloud. We never see your data. There is no third-party tracking and no fingerprinting analytics. Apple Health integration is opt-in. DISCLAIMER This app does not provide medical advice, diagnosis, or treatment. It is an organizational tool for tracking substances you have independently chosen to use. Always consult a qualified healthcare provider before starting, changing, or stopping any protocol. Schedule structures and titration ladders are drawn from manufacturer labels. Review and edit every value before use. QUESTIONS Email aanthonyle28@gmail.com.

Screenshots

The Peptide App4 screens
ProtoPep4 screens

Verdict

The call

The clearest difference is in-app purchases: The Peptide App at none against ProtoPep's 3. The Peptide App also leads on ratings volume (117 vs 6). ProtoPep's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 90%). On price, update cadence, 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. ProtoPep sells 3 in-app purchases, starting at $5.99 per month. The Peptide App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ProtoPep holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: The Peptide App has 117 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 90% of The Peptide App's written reviews are positive against 100% of ProtoPep's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
The Peptide App versus ProtoPep: the parameters behind the verdict, then further details
ParameterThe Peptide AppProtoPep
PriceFreeFree
Rating4.6 (117 ratings)5.0 (6 ratings) — better
Positive reviews90.5% of reviews100.0% of reviews — better
Number of ratings117 — better6
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size92 MB10 MB
Age rating17+4+
DeveloperThe Peptide App LLCAnthony Le

Customer experience

The Peptide App

All ratings117 ratings
Positive89.7%
Neutral3.4%
Negative6.8%
Written reviews21 reviews
Positive90.5%
Neutral4.8%
Negative4.8%

ProtoPep

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

The Peptide App

No in-app purchases

3 purchases

ProtoPep

Subscriptions2
  • ProtoPep Pro — Monthly$5.991 Month
  • ProtoPep Pro — Yearly1 Year trial$39.991 Year
One-time1
  • ProtoPep Pro — Lifetime$119.99

Questions

Is The Peptide App free?
The Peptide App is free to download, with no in-app purchases.
Is ProtoPep free?
ProtoPep is free to download, with in-app purchases available.
Which has better reviews, The Peptide App or ProtoPep?
ProtoPep is rated higher. The Peptide App averages 4.6 out of 5 from 117 ratings, while ProtoPep averages 5.0 from 6 ratings.
Do The Peptide App or ProtoPep have ads?
Neither The Peptide App nor ProtoPep shows ads.
Which is updated more often, The Peptide App or ProtoPep?
The Peptide App ships an update every 5 days, and ProtoPep every 5 days. Most recently, The Peptide App was updated on November 5, 2026 and ProtoPep on October 31, 2026.

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