The app made specifically for peptidesMade for peptides.
Made for peptides.
All of them.
Injectable, oral, or topical — Stackr tracks every dose, vial, and side effect across your entire stack. Not just GLP-1s.
9:41island
Today
Thu · Apr 303 due today · 1 overdue
Up next · in 38 min
Semaglutide
0.5 mg · subcutaneous · L thigh
Today's stack
BPC-157
250 mcg · daily
CJC-1295 / Ipamorelin
300 mcg · daily
Tirzepatide
5 mg · weekly
NAD+
100 mg · weekly
Home
Calendar
Supplies
Body
Library
Track every peptide in your stack
SemaglutideTirzepatideRetatrutideLiraglutideCagrilintideSurvodutideExenatideDulaglutideLixisenatideMazdutideOrforglipronPemvidutideCJC-1295IpamorelinSermorelinTesamorelinMK-677GHRP-2GHRP-6HexarelinSomatropin (rhGH)AnamorelinMacimorelinMGFPEG-MGFCapromorelinBPC-157TB-500GHK-CuKPVLL-37Pentadeca ArginateThymosin Beta-4CibinetideElamipretideMOTS-cHumaninLarazotideSelankSemaxCerebrolysinDihexaN-Acetyl SemaxN-Acetyl SelankDSIPDavunetideP21FGL PeptideCortexinEpitalonThymosin Alpha-1NAD+PinealonEndolutenVesugenCerlutenCortagenCrystagenVladonixVisolutenTestolutenSigumirVentfortChelohartSuprefortPancragenHonlutenMelanotan IIAfamelanotideArgirelineMatrixylSNAP-8EyeserylVialoxTripeptide-1Decapeptide-12PT-141Kisspeptin-10GonadorelinTriptorelinLeuprolideThymulinThymopentinTuftsinThymalinSplenopentinAOD-96045-Amino-1MQTesofensineAdipotideIGF-1 LR3IGF-1 DEShCGInsulin (Regular)OxytocinDesmopressinOctreotideLanreotidePasireotideLinaclotideTeduglutideGlucagonCosyntropinCalcitonin (Salmon)SemaglutideTirzepatideRetatrutideLiraglutideCagrilintideSurvodutideExenatideDulaglutideLixisenatideMazdutideOrforglipronPemvidutideCJC-1295IpamorelinSermorelinTesamorelinMK-677GHRP-2GHRP-6HexarelinSomatropin (rhGH)AnamorelinMacimorelinMGFPEG-MGFCapromorelinBPC-157TB-500GHK-CuKPVLL-37Pentadeca ArginateThymosin Beta-4CibinetideElamipretideMOTS-cHumaninLarazotideSelankSemaxCerebrolysinDihexaN-Acetyl SemaxN-Acetyl SelankDSIPDavunetideP21FGL PeptideCortexinEpitalonThymosin Alpha-1NAD+PinealonEndolutenVesugenCerlutenCortagenCrystagenVladonixVisolutenTestolutenSigumirVentfortChelohartSuprefortPancragenHonlutenMelanotan IIAfamelanotideArgirelineMatrixylSNAP-8EyeserylVialoxTripeptide-1Decapeptide-12PT-141Kisspeptin-10GonadorelinTriptorelinLeuprolideThymulinThymopentinTuftsinThymalinSplenopentinAOD-96045-Amino-1MQTesofensineAdipotideIGF-1 LR3IGF-1 DEShCGInsulin (Regular)OxytocinDesmopressinOctreotideLanreotidePasireotideLinaclotideTeduglutideGlucagonCosyntropinCalcitonin (Salmon)
Schedule
One tap to log. Zero spreadsheets.
Pick the peptide, the dose, the site, the time. Stackr remembers what you used last time and decrements your supply automatically. Your history builds itself.
- One-tap logging
- Custom reminders
- Site rotation
- Rest day support
- Multi-peptide stacks
- Notes per dose
9:41island
Today
Thu · Apr 303 due today · 1 overdue
Up next · in 38 min
Semaglutide
0.5 mg · subcutaneous · L thigh
Today's stack
BPC-157
250 mcg · daily
CJC-1295 / Ipamorelin
300 mcg · daily
Tirzepatide
5 mg · weekly
NAD+
100 mg · weekly
Home
Calendar
Supplies
Body
Library
Levels
See your week, not just your day.
Stackr models each peptide's half-life and renders an estimated medication-level chart from your real dose history. Spot peaks, valleys, and accumulation in one glance — and time your next shot accordingly.
- Half-life modeling
- Per-peptide overlay
- Dose markers
- Weekly + monthly views
- Export for your doctor
- Body metric overlays
9:41island
April
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Estimated level
Semaglutide
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Questions:
What is Stackr?
Stackr is a peptide tracker for iPhone. You log every dose, vial, and side effect in one place — with smart reminders, a reconstitution calculator, and per-peptide level charts. It is built for people running real protocols, not for one-off tracking.
What peptides does Stackr support?
Over 100 compounds and counting. Stackr ships with a curated library covering GLP-1s like semaglutide and tirzepatide, growth-hormone secretagogues like CJC-1295/Ipamorelin, healing peptides like BPC-157 and TB-500, NAD+, nootropic and bioregulator peptides, oral peptides, topicals, and many more.
Does Stackr handle non-injectable peptides?
Yes — injectable, oral, sublingual, topical, and nasal forms are all first-class. The reminder, dose-tracking, and side-effect flow adapts to whatever form factor you choose for each compound.
Is Stackr a medical device?
No. Stackr is a personal tracking tool. It does not diagnose, treat, or prevent any condition, and nothing in the app is medical advice. Always consult a licensed clinician before starting, changing, or stopping any protocol.
Is my data private?
Your data is yours. We do not sell it, share it with advertisers, or use it to train AI models. Your peptides, doses, and supplies sync to your private Stackr account so they're available across your devices, encrypted in transit.
Is there an Android version?
Not yet. Stackr is iPhone-only today so we can ship faster and take advantage of native widgets, StoreKit subscriptions, and the iOS notification system. An Android version is on the roadmap.