Choose a comparison
Halflife vs Regimen
iPhone-first local workflow versus Regimen’s publicly advertised iOS and Android ecosystem.
Halflife vs PepTracker
Estimated curve emphasis versus protocol-builder and calendar emphasis.
Halflife vs Smart Peptide Tracker
iPhone-only listing versus a confirmed Android marketplace listing.
Halflife vs Pep AI
Structured protocol logs versus Pep AI’s publicly promoted AI-assisted workflow.
GLP-1 tracker app guide
What weekly injection, side-effect, progress, and estimated-level tracking each solve.
Our comparison rules
- Current official product pages and marketplace listings are treated as primary sources for vendor claims.
- A vendor claim is not presented as independently verified product performance.
- Conflicting counts, prices, platforms, and feature descriptions are called out rather than silently resolved.
- Unknown means unknown. An estimate is labeled as an estimate.
- Modeled concentration curves are never described as measured blood levels.
Read the complete Halflife Labs methodology for evidence tiers and limitations.
Frequently asked questions
Are these app comparisons independently tested?
Not all features in every competing app have been independently tested by Halflife Labs. The pages use current official sources, label vendor claims, and identify unknowns.
Why do app details change between comparisons?
App features, ratings, prices, and platform availability change. Each comparison includes a fact-check date and should be rechecked before purchase.
Keep the complete record in one place
Halflife - Peptide & GLP-1 Log organizes injection logs, schedules, vial inventory, sites, symptoms, and clearly labeled estimates on iPhone.
Download Halflife - Peptide & GLP-1 Log