Peptide Ledger vs Peptide Protocol+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Peptide Ledger
This app helps you meticulously log your peptide and GLP-1 research, including doses, vials, and progress, without relying on spreadsheets or subscriptions. It offers tools for reconstitution calculations and private data storage, with an optional Pro version for advanced features.
- Log doses, observations, and milestones
- Track vial inventory, cost, and expiry
- Forecast vial usage and reorder needs
- Reconstitution Solver for calculations
- Private data storage with optional iCloud sync
- Home Screen and Lock Screen widgets
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Track your GLP-1 and peptide research without spreadsheets, scattered notes, or a monthly subscription. Peptide Ledger keeps your plans, doses, vials, reminders, progress, labs, and research context in one private ledger. It shows the important things first, like your next dose, what's left in each vial, and when you'll run out. The full detail is always one tap away. EVERYTHING IN ONE PLACE • Build and follow your own plans • Log doses, observations, check-ins, and milestones in a couple of taps • Track open and sealed vials, lots, concentration, cost, and expiry • See when each vial will run out and when to reorder • Review doses, plan changes, inventory, progress, and labs in Timeline • Import body weight from Apple Health when enabled • Reminders, Home Screen and Lock Screen widgets, and supported Siri actions SIMPLE OR FULL Simple mode keeps it to Now, Vials, and History. Full mode adds plans, forecasting, the Research Library, and deeper records, all with the same clean design. RECONSTITUTION TOOLS Work out concentration, draw volume, and vial-mix references from your own numbers with the Reconstitution Solver. The app does not recommend doses or mixing amounts. PRIVATE BY DESIGN • No account required • Data stored on your device by default • Optional private iCloud backup and sync • App Lock with Face ID, Touch ID, or passcode • No advertising trackers START FREE Try the Research Library, Now, reminders, the Reconstitution Solver, and the core tracking tools before deciding whether you need Pro. PEPTIDE LEDGER PRO Pro is a one-time purchase with no subscription. It unlocks higher tracking limits, unlimited inventory and history, forecasting, progress and lab tools, Vendor Book, advanced insights, widgets, and supported Siri actions. Peptide Ledger is intended for research tracking, reference organization, and personal recordkeeping. It does not provide medical advice, diagnosis, treatment, prescribing, dosing recommendations, or clinical decision support.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Peptide Protocol+ at none against Peptide Ledger's 1. Peptide Protocol+ also leads on update cadence (daily vs every 10 days) and iOS requirement (15.1 vs 18.0). On price, rating, ratings volume and ads 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 Ledger sells 1 one-off in-app purchase. Peptide Protocol+ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Peptide Ledger against 5.0 for Peptide Protocol+. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Peptide Ledger ships an update every 10 days, Peptide Protocol+ daily. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.
| Parameter | Peptide Ledger | Peptide Protocol+ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 10 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 20 MB | 42 MB |
| Age rating | 17+ | 4+ |
| Developer | Kris Emsoff | JUSTIN MICHAEL CIFELLI |
Customer experience
Peptide Ledger
Peptide Protocol+
In-app purchases
Peptide Ledger
- Peptide Ledger Pro$2.99
Peptide Protocol+
No in-app purchases
Questions
Is Peptide Ledger free?
Is Peptide Protocol+ free?
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