Peptide Tracker Apps in 2026: What We Found When We Tested Them All

Twelve months ago, if you searched "peptide tracker app" you got a Reddit thread and a spreadsheet template. Now there are 15+ options across iOS, Android, and web. The market moved fast. The question is whether it moved in the right direction.

We tested every peptide tracking app we could find in May 2026. Downloaded them, created protocols, logged doses, tried the safety features (where they existed), and compared what you actually get for your money. Pinned is ours. We built it. We're not pretending otherwise, and we'll tell you exactly where our competitors beat us.

\> Not medical advice. This article compares software tools, not clinical protocols. Always work with a licensed provider.

The timing matters. The FDA's PCAC meets July 23-24 to review 7 peptides for reclassification. Legal compounding access is expanding. The GLP-1 wave pushed millions of people toward injectable therapies for the first time. Stack complexity is increasing. And most of these apps were built to log doses, not to catch the interaction that sends you to the ER.

That gap, between "dose logger" and "safety system," is what this comparison is actually about.

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\## Why a Peptide Tracker Matters More in 2026 Than It Did Last Year

Three things changed at once.

\\Legal access is expanding.\\ As peptides move from gray market "research use only" vials to regulated compounding pharmacies with prescriptions, the clinical expectation around documentation increases. Your provider will want to see what you've been running, when, and what happened.

\\Stacks are getting more complex.\\ The average peptide user in 2026 is not running a single compound. They're stacking BPC-157 with TB-500, adding a GH secretagogue, maybe running MOTS-C for metabolic support. Each compound has its own half-life, its own receptor targets, and its own interaction profile. A notebook doesn't cut it.

\\Safety monitoring is no longer optional.\\ When you're injecting multiple compounds that interact with your endocrine system, immune response, and cardiovascular markers, you need something that flags when a combination is dangerous, not just something that remembers your last dose.

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\## What We Tested and How We Scored

We evaluated 10 apps across 8 categories. Every app was installed, tested with at least one multi-compound protocol, and scored on what matters for someone managing real peptide stacks.

\- \\Compound library size and depth\\: how many peptides, how much detail per compound

\- \\Safety features\\: interaction checks, contraindication alerts, severity grading

\- \\Pharmacokinetic modelling\\: half-life curves, serum level visualisation, overlap detection

\- \\Multi-compound support\\: can you run a full stack, not just one compound

\- \\Injection site tracking\\: rotation logging, anatomical mapping

\- \\Sharing and export\\: can you show your provider, export your data

\- \\Price\\: what's free, what's behind a paywall

\- \\Platform availability\\: iOS, Android, web, or something else entirely

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\## The Apps, Tested

\### Regimen (helloregimen.com)

Regimen is the one to beat. 600+ compounds in their library, half-life curves, 40+ check-in metrics, inventory tracking, blood work logging, and an insights engine that surfaces patterns over time. Available on iOS and Android. 4.9 stars with 70+ reviews, and it gets more Reddit endorsements than anything else in this space.

The free tier is brutally limited: one compound only. That's not a peptide tracker, that's a demo. The real product starts at $4.99/mo or $39.99/yr. At that price, you get a polished, full-featured tracking experience with the deepest compound library available.

\\Where it wins:\\ Library breadth, polish, cross-platform native apps, community trust. If you want the most compounds in one place, this is it.

\\Where it falls short:\\ The safety engine is shallow. Regimen tracks what you take and when, but it doesn't grade interaction severity, flag contraindications by condition, or model what happens when your BPC-157 serum curve overlaps with your TB-500 dose. The free tier being locked to one compound means you can't evaluate the multi-stack experience without paying.

\### Smart Peptide Tracker

Android only. 200+ peptides, 50+ blends, and a genuinely interesting Stack Analyzer that produces a 6-dimension radar chart of your protocol. Has an AI assistant called "Amino," body map for injection sites, and partner profiles for couples running protocols together.

The pricing model is refreshing: free core with a one-time premium purchase. No subscription. 5K+ downloads.

\\Where it wins:\\ The radar chart Stack Analyzer is a clever visualisation nobody else has. The one-time purchase model respects users who don't want another monthly charge. Partner profiles are a thoughtful feature for the growing number of couples doing this together.

\\Where it falls short:\\ Android only eliminates a large chunk of the market. The AI assistant is general-purpose, not safety-specific. No pharmacokinetic modelling.

\### PepTracker

iOS only. 285 reviews makes it the most battle-tested app by user count. 4.69 stars. Free tier gives you 2 protocols, paid is $4.99/mo or $47.99/yr.

\\Where it wins:\\ Proven reliability. The largest review count suggests the most real-world usage. The 2-protocol free tier is more generous than Regimen's 1-compound limit.

\\Where it falls short:\\ iOS only. Feature set is solid but not differentiated. No PK modelling, no safety engine beyond basic reminders.

\### PeptIQ (peptiq.io)

iOS. Education-forward approach that integrates peptide learning content directly with tracking. They publish their own comparison page ranking competitors, which tells you they're thinking about SEO and positioning.

\\Where it wins:\\ If you're new to peptides and want to learn while you track, the integrated education model is genuinely useful. The content is reasonably well-sourced.

\\Where it falls short:\\ The education angle means the tracking features feel secondary. Less depth for experienced users managing complex stacks.

\### PeptideKit

iOS. Combines protocol tracking with journaling and analytics. Streak tracking, AI chat assistant, 178 reviews. The "how do you feel" logging approach bridges the gap between objective dose tracking and subjective bio-feedback.

\\Where it wins:\\ The journaling angle is underrated. Tracking how you feel alongside what you inject creates the data set your provider actually wants to see. Streak tracking adds accountability.

\\Where it falls short:\\ iOS only. The AI chat is general-purpose. No PK curves or safety interaction modelling.

\### Pep AI

iOS. AI-assisted with meal scanning and check-ins. This one is hard to recommend. User reviews report that you can't add peptides without paying, login issues persist, and core features are broken. 790 downloads.

\\Where it wins:\\ The concept of integrating meal tracking with peptide protocols is sound, especially for metabolic peptides like MOTs-C where fasting state matters.

\\Where it falls short:\\ Execution. When users can't log in or add compounds, the feature set is irrelevant. Needs significant development work before it's viable.

\### Peptide Library/Tracker (Superfime LLC)

Android. A vendor price comparison engine with 200+ profiles, peptide school educational content, and inventory management with auto-deduct. Updated May 14, 2026.

\\Where it wins:\\ The price comparison engine is unique. If you're buying from gray market vendors, being able to compare pricing across sources has real utility. The auto-deduct inventory prevents the "did I already use that vial" problem.

\\Where it falls short:\\ Android only. The vendor comparison feature inherently connects users to unregulated sources, which cuts against the direction the market is moving with regulated compounding access.

\### Miora (getmiora.com)

No app. Miora runs inside iMessage and WhatsApp as a conversational AI agent. Connects to WHOOP and Oura. Completely different model.

\\Where it wins:\\ Zero friction. No app to download, no interface to learn. You text it. If you already live in your messaging app and wear a WHOOP, this meets you where you are.

\\Where it falls short:\\ Conversational interfaces are terrible for structured data. You can't glance at a serum curve in a text thread. No injection site mapping, no stack visualisation. Early stage, limited compound knowledge.

\### Peptide Log

iOS, by Johannes v. Grundherr. Tracks purchases, dilutions, and custom mixes. As of May 2026, iOS 26 broke it and the app is crashing. Developer is working on a fix.

\\Where it wins:\\ Dilution tracking is a genuinely useful feature that most apps ignore. Reconstitution math matters.

\\Where it falls short:\\ Currently broken on the latest iOS. Single developer dependency means updates are unpredictable.

\### The Pep Planner (thepepplanner.app)

Web-based. Injection logging, dose calculations, vial tracking, protocol management. Free trial available.

\\Where it wins:\\ Web-based means platform-agnostic. Dose calculation and vial tracking are practical features for daily use.

\\Where it falls short:\\ Limited compound library. No safety features, no PK modelling. The web interface feels functional rather than designed.

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\## Where Pinned Fits

Pinned (pinned.life) is ours. Here's what it is and what it isn't.

\\What it is:\\ A web PWA with two tiers. The free tier includes the full engine: unlimited protocols, all 25 outcome modules, an automated safety engine with death triggers, cancer checks, and drug interactions graded across 4 severity levels (Critical, Severe, Caution, Moderate). An 18-point anatomical injection site mapper. A pharmacokinetic simulator that renders real-time Bateman serum waveforms so you can see when compounds overlap. A stack sandbox with drag-and-drop simulation. Bloodwork tracking. Supply hub. Bio-feedback logging. Custom peptide entry. Visual dosing calculator. Share My Stack cards.

Elite Lab at $49/mo adds unlimited AI clinical counsel, bloodwork PDF analysis, wearable data ingest from Oura, WHOOP, and Garmin, receptor sensitivity tracking, a parallel correlation engine, and CSV/JSON export.

34+ peptides in the database, each with PubMed citations and evidence grading. A TRT+ section covering 4 testosterone ester profiles. And a blog (PIN·BOARD) with 34+ research articles, 25+ outcome guides, and 9 peptide profiles.

\\Where it wins:\\ The safety engine. No other app in this comparison grades interaction severity, flags contraindications by condition, or models pharmacokinetic overlap between stacked compounds. The PK simulator showing real-time serum curves is something Regimen, PepTracker, and every other competitor lacks entirely. And the full engine is free. Not "free for one compound." Free.

\\Where it falls short:\\ No App Store presence. Pinned is a PWA, not a native app. Apple required removing the safety engine to approve it, and we chose the safety engine. That means no home screen icon from the App Store, no push notifications on iOS (yet), and the friction of "Add to Home Screen" instead of "Download." Our compound library is 34 peptides, not 600. We chose depth over breadth, PubMed citations over quantity, but if you're running an obscure research compound, Regimen probably has it and we probably don't.

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\## What We Chose Not to Build

This section is the honest part that most comparison articles skip.

\\We chose not to build a native iOS app.\\ Apple's App Review required removing the safety engine, the core feature that differentiates Pinned from every competitor. We could have shipped a polished App Store listing with dose logging and pretty charts. We chose to keep the thing that actually protects users. The tradeoff is real: PWA friction costs us downloads. We made the call anyway.

\\We chose a smaller compound library.\\ 34 peptides with full PubMed citations, evidence grading, mechanism breakdowns, half-life data, and safety profiles. Not 600 compounds with a name and a dosing field. Every compound in Pinned's database has been through our ingestion pipeline: peer-reviewed literature, structured safety data, editorial review. Adding a compound takes days, not minutes. That's the cost of the evidence standard.

\\We chose free.\\ The full safety engine, unlimited protocols, PK simulator, injection mapper, stack sandbox, all 25 outcome modules. Free. Not "free trial." Not "free for one compound." The safety system should not be behind a paywall. The AI layer is premium because it costs us money to run. The safety layer is free because it should be.

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\## How to Pick the Right One

Different tools for different situations. Honest recommendations:

\- \\You want the biggest compound library and polished native apps:\\ Regimen. It's not close on library size. If you're running compounds Pinned doesn't cover, Regimen probably does.

\- \\You're on Android and want a one-time purchase:\\ Smart Peptide Tracker. No subscription, decent feature set, the radar chart is genuinely useful.

\- \\You're new to peptides and want to learn while tracking:\\ PeptIQ. The integrated education approach helps beginners build context.

\- \\You want daily journaling alongside your protocol:\\ PeptideKit. The subjective logging creates data your provider wants.

\- \\You want the most battle-tested community:\\ PepTracker. 285 reviews means the most real-world usage validation.

\- \\You want the deepest safety engine and PK modelling, and you don't want to pay for it:\\ Pinned. The safety system, the serum curve simulator, and the full tracking engine are free. That's not a marketing claim, it's the product.

\> The best peptide tracker is the one you actually use. If Regimen's native app gets you to log consistently and Pinned's PWA doesn't, Regimen is better for you. Consistency beats features.

Pinned is free. It costs nothing to find out if it fits.