Reconstitution calc
Tell it the vial mg, the bac water, and the dose — get an exact unit-mark on the pin. Every time.
The Only Tracker Built for
Serious Peptide Protocols.
Log doses, track cycles, calculate reconstitution, and see your stack's half-life overlap — all in one place.
No subscription required. Free tier is genuinely useful.
Know exactly where you are in every cycle, every day.
Built for the way real protocols actually run.
Half-life overlays
See active windows for every compound in your stack on one chart. Spot synergies and conflicts at a glance.
Injection site rotation
Body-map view tracks every site by date. Avoid scar tissue without thinking about it.
Bloodwork tracker
Log labs alongside protocols. Trend lipids, hormones, and CBC over months — your data, your file.
Cycle planner
Plot on/off weeks across the whole protocol. Notifications fire on the right days, automatically.
Privacy-first design
Everything lives on-device by default. No analytics, no ads, no proprietary backend. iCloud sync is opt-in.
What people say.
“Finally a tracker built for actual peptide protocols. The reconstitution calculator alone saves me ten minutes every cycle.”
“I've tried four other apps. Atlas is the only one that understands stacking. The half-life overlay is a game changer.”
“The body-map injection site tracker fixed my rotation in a week. Bloodwork tab is the cherry on top.”
Medical disclaimer. Atlas is an educational reference and self-tracking journal. It does not prescribe, recommend, or calculate doses. Always consult a qualified, licensed healthcare provider before starting, changing, or stopping any protocol.