The Scorecard
2026 Peptide Tracker Comparison
Eight criteria. Each is binary — the app either has the capability or it doesn't. Partial implementations marked separately in the breakdown below.
What the Scores Mean
The Eight Criteria Explained
Protocol's today screen — active PK levels, injection history, upcoming doses
Android: The zero-competition category. Every competitor is iOS only. Protocol launched on Android in May 2026 with full feature parity. If you're on Android, the choice is Protocol or a web-based calculator with no tracking.
Full calculator suite: Five tools — reconstitution calculator, Custom Draw reverse mode, PK half-life plotter (22 compounds), TRT ester calculator, and stack cost calculator. PepTracker has basic reconstitution only. Dose has a basic reconstitution tool. Nothing else comes close to the suite.
AI research features: Protocol has AI integration at 6 touchpoints — compound research assistant, stack synergy analysis, daily check-in coaching, injury protocol suggestions, cycle planning, and dosing guidance. No other peptide tracker has any AI features as of 2026.
3D injection site map: Protocol tracks every injection to a specific body zone using a 3D rotation model, surfacing how long ago each site was used and suggesting the next optimal zone. Lipohypertrophy prevention through systematic rotation. No other tracker has this.
On-device privacy: Protocol stores all data on-device with no account, no cloud sync, no data transmission. TRT and GLP-1 users in particular value this. Most other apps require an account or offer cloud sync, meaning data leaves the device.
Bloodwork logging: Protocol's lab tracker logs blood draw results alongside your protocol history. You see Total T, Free T, Estradiol, and Hematocrit trends plotted against the dose you were running at each draw date. The connection between protocol changes and lab changes is the whole point of tracking.
Unlimited free tier: Protocol is fully functional for free — unlimited protocols, unlimited compounds, full calculator suite. PepTracker caps free users at 2 protocols. PeptIQ requires a paid subscription for most features. Dose is free but iOS only with a limited tool set.
Compound library: Protocol includes 81 research compound profiles — mechanism, dosing guidance, reconstitution notes, and half-life data. The PK plotter draws from a 22-compound database. No other free tracker comes close to this research depth.
The Honest Assessment
Where the Competition Has an Edge
Dose (by Alec Smith) has a genuinely beautiful UI — arguably the best visual design of any peptide tracker. If aesthetic polish is your primary criterion and you're on iOS, Dose is worth evaluating. It also has home screen and lock screen widgets that Protocol doesn't.
PepTracker is beginner-friendly with low onboarding friction and a clean template library. For someone running a single simple protocol who wants nothing complicated, the free 2-protocol tier is fine. The PDF export to share with a prescriber is a useful feature Protocol doesn't have.
These are real advantages. They don't change the scorecard result — Protocol wins on capability at every level that matters for serious protocol tracking — but they're worth knowing if your specific needs align with what a competitor does well.
Common Questions
