PepLog vs The Peptide App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PepLog
This app simplifies tracking complex peptide protocols by managing schedules, sending timely reminders, and allowing one-tap dose logging. It supports multiple peptides, provides a full dose history, and estimates supply duration to prevent running out.
- Flexible peptide scheduling
- Home screen widget for quick logging
- One-tap dose logging
- Multi-peptide protocol support
- Smart dose reminders
- Full dose history
- Supply duration calculation
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Staying consistent is the hardest part of any peptide protocol. You're juggling multiple compounds, different frequencies, varying dose times — and one missed dose can throw off your entire schedule. PepLog exists so you never have to keep track of it all in your head. HOW IT WORKS Set up your protocol once and let PepLog handle the rest. It builds your schedule, sends you reminders at the right times, and lets you mark doses as taken with one tap — from a Home Screen widget, without even opening the app. WHAT YOU GET Flexible Scheduling — Daily, alternating days, every N-days, or specific weekdays. Configure one to four doses per day with custom dose times. Home Screen Widget — See today's pending and completed doses at a glance. Peptide name, amount, and time — all visible without opening the app. Tap to log instantly. One-Tap Dose Logging — Mark doses complete from the widget or inside the app. No forms, no friction. Multi-Peptide Support — Run multiple protocols simultaneously, each with its own frequency, dosage, and schedule. Smart Reminders — Get notified at your exact dose times so nothing slips through the cracks. Full Dose History — A complete, timestamped log of every dose across all your experiments. See what you took, when, and how much. Supply Duration — Know how many days your vials will last so you can reorder before running out. Your protocol, on autopilot.
The Peptide App
Organize and track your peptide protocols with a comprehensive library, a reconstitution calculator, and personalized dose reminders. Log your adherence, review your dosing history, and create custom protocols tailored to your specific needs.
- Protocol library with dosing schedules
- Reconstitution calculator for bacteriostatic water
- Dose tracking and personalized reminders
- Custom protocol builder
- Activity log for dosing history
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The Peptide App brings peptide research, reconstitution calculations, vial tracking, protocols, and dose reminders together. Every feature is free, with no subscription. Calculate syringe units, organize your routine, and keep your peptide information in one place. No paywall. Every feature unlocked from day one. Reconstitution calculator Enter your vial amount, water volume, and target dose to calculate how many syringe units to draw. Save your vial details for your next dose. Visual guides explain reconstitution and injection sites. Dose logging and reminders Plan daily, weekly, or cyclical schedules. Get dose reminders, then log, reschedule, or skip a dose in a tap. Keep a timeline of your routine without piecing together notes and calendar entries. Custom protocols and stacks Build your own protocol or explore the app's library. Organize multiple peptides with custom phases, frequencies, and titrations, and keep their schedules together. Peptide library and research Explore peptides and stacks by topic or goal. Read about mechanisms, dosing ranges, cycle lengths, and common combinations, with source references available on peptide pages. Keep the information 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 body scans, and review baseline and follow-up check-ins alongside your dose history. See what changed over time without relying on memory. Vendor prices Browse vendor pricing alongside peptide information to compare available options. Private by default Your protocols, metrics, and photos are yours. We don't sell your data, and you can delete your account anytime. Download The Peptide App and start with the calculator, peptide library, or your own protocol. All free. The Peptide App is for educational and informational purposes only and is not medical advice. Always consult a qualified healthcare provider before starting any peptide protocol. 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/
Screenshots
Verdict
The clearest difference is review sentiment: The Peptide App at 100% against PepLog's 50%. The Peptide App also leads on rating (4.7 vs 4.0) and update cadence (every 5 days vs every 2 months). PepLog's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model 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. PepLog sells 1 one-off in-app purchase and The Peptide App sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
The Peptide App holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: The Peptide App has 86 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of PepLog's written reviews are positive against 100% of The Peptide App's.
PepLog ships an update every 2 months, The Peptide App every 5 days. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.
| Parameter | PepLog | The Peptide App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) | 4.7 (86 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 86 — better |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 64 MB | 95 MB |
| Age rating | 17+ | 17+ |
| Developer | Roberto Yudice | The Peptide App LLC |
Customer experience
PepLog
The Peptide App
In-app purchases
PepLog
- PepLog Pro Lifetime$4.99
The Peptide App
- Monthly Access — Member Rate1 Month trial$4.991 Month
- The Peptide App Monthly Access1 Month trial$9.991 Month
- Yearly Access — Member Rate1 Month trial$34.991 Year
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- Yearly Access1 Month trial$49.991 Year









