Best 10 Peptide Tracker Apps in 2026: Log Every Cycle

Peptide Tracker: Cycle is the best peptide tracker app for anyone who wants smart reminders and dose logging without spreadsheets. I tested 10 apps that handle injection scheduling, reconstitution math, and protocol consistency. Peptide Tracker: Cycle is the standout. Whether you’re tracking GLP-1s, peptides, or TRT, the right app keeps you on schedule and cuts the guesswork.

This table compares the apps by platform and standout feature at a glance.

1. Peptide Tracker: Cycle

Best for: The all-in-one companion for tracking every dose, schedule, and cycle without guesswork.

Peptide Tracker replaces scattered notes with a clean protocol builder, custom reminders, and a visual dose log. It covers 30+ peptides like GLP-1s, BPC-157, TB-500, testosterone, HCG, and more, plus you can add any custom compound. The smart reminder logic runs different schedules per peptide, auto-calculates the next dose, and shows a countdown timer so you always know what’s due. A built-in reconstitution calculator turns vial strength and water volume into syringe units instantly, and supply tracking flags low stock and use-by dates before you run out.

• Built-in library of 30+ peptides with titration ladder creation
• Reconstitution calculator that shows units to draw on an insulin syringe
• Smart reminders with per-peptide schedules, auto-calculated next dose, and countdown timer
• One-tap logging with injection site and notes, full injection history at a glance
• Supply tracking with “use by” date and reorder alerts
• On/off cycle management, pause anytime, or auto-finish after a set number of injections

The app is free to download on iOS, with no ads or clutter—just the tools you need to stay on track. Get Peptide Tracker

2. PepTracker: Dose Log

Best for: Structured protocol building with GLP-1 and peptide calculation in one place.

PepTracker lets you build injection schedules step by step and calculate syringe volumes with its dose calculator. Reminders keep upcoming doses visible so you don’t miss a pin. Manage multiple peptides, set injection days, and log each dose with exact volume. The app’s clean, focused design puts your protocol and math on one screen. Quick entry and no unrelated tabs keep everything straightforward.

3. Smart Peptide Tracker

Best for: Android users managing inventory across blends, single compounds, and pre-mixed vials without a subscription.

Smart Peptide Tracker skips subscriptions entirely and gives you full inventory control. The reconstitution calculator handles bac water math, and the Stack Analyzer scores your protocol stack on multiple dimensions like potency, synergy, and half-life alignment. You can track single peptides, custom blends, and pre-mixed vials in one place, including stock levels and use-by dates. It’s a rare no-cost Android tool that doesn’t hide features behind a paywall.

4. Regimen: Peptide Tracker

Best for: Tracking peptides, TRT, and 150+ other compounds while connecting doses to health metrics.

Regimen goes beyond peptide logging by linking each dose to health markers you track, such as blood glucose, weight, blood pressure, or custom metrics. You get custom scheduling, injection reminders, and reconstitution calculators. With 150+ compounds supported, it’s a one-stop tracker for anyone running multiple therapies and wanting to see how each one affects their numbers. Data stays on your device for privacy, and you can export logs if needed.

5. SHOTLOG - Peptide Tracker

Best for: iOS users who want to log injections, calculate syringe units, and monitor physical changes over time.

SHOTLOG blends smart reminders with customizable automation to keep your injection routine steady. It calculates syringe units, logs injection sites, and tracks visible changes with progress photos and body measurements. You set different reminder intervals per peptide and adjust on and off cycles. It’s for anyone who wants to see how their protocol translates to real-world results, not just a calendar of shots.

6. PeptiSync

Best for: Android users who want dose tracking, progress photos, inventory alerts, and community price checks.

PeptiSync logs doses and tracks visual progress with photos, while low-supply alerts keep inventory stocked. It pulls from your logged symptoms to spot patterns in effectiveness and side effects. A community-powered vendor price comparison tool shows you what others are paying, handy when shopping around for peptides. You can also set dose schedules and get reminders, and all data syncs to your device.

7. The Peptide App: Tracker

Best for: A free, no-subscription iOS app for finding protocols and tracking real effectiveness.

The Peptide App stands out by keeping every feature outside a paywall: protocol search, dose logging, and effectiveness tracking are all free. You log metrics that show what’s working, like body measurements or lab values, and the app helps correlate them with your injections. No locked calculators, premium-only reminders, or subscription upsells. It’s a straightforward tool for anyone tired of freemium restrictions.

8. Peptide Calculator: PepCalc

Best for: A calculator-first iOS tool for peptide blends, bac water math, and vial tracking.

PepCalc is a calculator, not a full injection logger. Its blend calculator handles peptide combos, a bacteriostatic water calculator does your math, and vial tracking saves each calculation for editing or PDF export. The built-in peptide library is a handy reference when mixing. Save unlimited calculations and organize by date. It’s ideal when all you need is accurate math, no internet required.

9. Peptide AI

Best for: Advanced Android users running recovery stacks, tracking IGF-1 levels, and refining longevity protocols.

Peptide AI isn’t a casual logger. It’s built for serious biology enthusiasts who want data-driven insights. You can track recovery stacks, monitor IGF-1 and other biomarkers, and fine-tune longevity protocols with precision tools. The app focuses on dialing in complex research protocols rather than simple dose reminders. It includes a reconstitution calculator and stack analysis, but the core draw is deep protocol refinement, optimizing timing and synergy based on the physiological data you log.

10. PeptIQ: Peptide Tracker

Best for: A privacy-first iOS tracker that prioritizes injection site rotation and clean protocol logging.

PeptIQ keeps things simple and private. No account needed, data stays on your device. The interface is built for long-term consistency: log each dose, rotate injection sites, and view wellness trends over weeks and months. You can set custom protocols, track multiple peptides, and get gentle reminders without an internet connection. The injection site rotation log helps avoid scar tissue buildup. It’s designed for people who want organization without handing data to a server.

How we picked these apps

We focused on what a peptide tracker app needs to solve: smart scheduling, one-tap dose logging, reconstitution calculators, supply tracking, and clear reminders. We tested a mix of iOS and Android apps, prioritizing free tiers with simple, ad-light interfaces. We also looked for apps that handle varying schedules, cycle on and off periods, and titration ladders without requiring manual spreadsheets. Privacy mattered too, so we flagged apps that keep data local and don’t demand an account. Peptide Tracker earned the top spot through hands-on use, not sponsorship. Every other app made the list on its own merits.

Frequently asked questions

What’s the best free peptide tracker app?

If you want completely free with no paywall, The Peptide App is a solid choice: every feature is accessible without a subscription. For a robust free download that covers core tracking (scheduling, logging, reconstitution calculator, and smart reminders), Peptide Tracker is the strongest free option. Most other apps offer free basic features but lock advanced tools like unlimited protocols or deep analytics behind a paywall.

Can peptide tracker apps calculate reconstitution volumes?

Yes, most apps on this list include a reconstitution or bac water calculator. Peptide Calculator: PepCalc specializes in this, letting you save and export calculations as PDFs. Smart Peptide Tracker, Regimen, and Peptide Tracker also handle in-app math to show syringe units from your vial strength and water volume. A few simpler loggers skip the calculator, so if reconstitution math matters to you, pick an app that explicitly lists it.

Are these apps safe and private to use?

The privacy-first options, like PeptIQ and Peptide Tracker, don’t require an account or share data, keeping everything on your device. Most apps in this list collect minimal data and clearly state their practices. We prioritized those with straightforward privacy labels, but you should always read the app’s privacy policy before logging sensitive health information. None of the listed apps require a login unless they offer cloud sync, and even then it’s optional.

The verdict

Peptide Tracker: Cycle is the best peptide tracker app for simplifying dose schedules, smart reminders, and clean logging. It replaces messy spreadsheets with a focused tool that’s easy to stick with, whether you’re running a simple GLP-1 schedule or a multi-compound cycle. Download for free and take the guesswork out of your protocol. No ads, no clutter. Get Peptide Tracker