Self-experiments, tracked

Free · Designed for iPad. Not verified for macOS.

n=1 is a tool for structured self-experiments. Define a protocol, pick metrics (from HealthKit or subjective ones), see what moved at the end. HONEST ABOUT RIGOR n=1 is for self-experimentation — unblinded, uncontrolled, sample size of one. Results screens say so in plain language. The point isn't proof; it's a structured way to see whether the thing you're trying actually moves your numbers. THE CORE LOOP • Pick a curated protocol or design your own (intervention + duration + tracked metrics) • Log adherence and optional energy / sleep quality / mood scores in a 15-second daily check-in • HealthKit data is fetched on demand: sleep, HRV, resting heart rate, weight, VO2 max, glucose, body temperature, workouts • When the protocol ends, see a baseline-vs-protocol chart per metric with the % change called out PROTOCOL LIBRARY 12 curated experiments across sleep, circadian, cardiovascular, recovery, and lifestyle — creatine, magnesium glycinate, Zone 2 cardio, morning sunlight, and more. Every protocol ships with a falsifiable hypothesis, an honest evidence summary, explicit cautions, and a difficulty rating. No fabricated effect sizes. SHARE A RESULT When a protocol ends, share a clean image card with the headline metric, supporting numbers, and a link back to the app — for your group chat, journal, or wherever you log your experiments. PRIVATE BY DEFAULT n=1 works fully offline. Your HealthKit data stays on your device — no ads, no analytics, no third-party tracking, no account required to start. n=1 is a self-experimentation tool, not medical advice. Always consult a qualified healthcare provider before starting any new health protocol.

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• Data Not Collected

  The developer does not collect any data from this app.

Seller

• Gennadii Tsypenko

Size

• 1.7 MB

Category

• Health & Fitness

Compatibility

Requires iOS 26.4 or later.

• iPhone
  Requires iOS 26.4 or later.
• iPad
  Requires iPadOS 26.4 or later.
• Mac
  Requires macOS 26.4 or later and a Mac with Apple M1 chip or later.
• Apple Vision
  Requires visionOS 26.4 or later.

Languages

• English

Age Rating

13+

• 13+

• Contains
  Health or Wellness Topics

Copyright

• © 2026 Gennadii Tsypenko