Self-experiment tracker

Stop guessing.
Test it properly.

Find out whether a diet, a supplement or a habit actually moves how you feel. Run a fixed-length experiment, check in 20 seconds a day, and get a verdict backed by your own numbers.

Download on the App Store Available on Google Play

Free to start· No account needed· Your data stays on your phone

21:42esito

Verdict · Day 21 of 21

Magnesium glycinate

Finished today · 20 of 21 check-ins

Works for you

Nice - your energy is genuinely up this round.

+18% vs your baseline

baselineexperiment

Energy +18%

Sleep quality −4%

Mood +6%

How it works

Three weeks. One variable. A real answer.

Pick a template

Start from experiments that already know what matters - keto, fasting, a new supplement. The right metrics come pre-loaded. No blank page.

Check in daily

20 seconds before bed. Only the metrics your experiment cares about - nothing else to fill in, no tracking fatigue.

Read your verdict

Plain language first, numbers right behind it. "Your energy went up - +18% vs your baseline." Not a grid you have to decode.

Templates

Six experiments, ready to run.

Each one comes with the metrics that actually matter, picked by someone who knows the territory. Adjust anything - or just press start.

Test a new supplement Popular 14 days · 4 metrics

Keto transition 21 days · 7 metrics

Intermittent fasting 16:8 14 days · 6 metrics

Sleep optimization 14 days · 5 metrics

Cut sugar / caffeine 14 days · 5 metrics

Creatine 30 days · 4 metrics

Esito app - the experiment templates screen

The verdict

A verdict, not a vibe.

At the end of every experiment you get a plain-language answer backed by your before-and-after numbers. And when the data isn't there, Esito says so.

One variable at a time. The app nudges you to change one thing per experiment, so the result actually means something.

Honest about uncertainty. "Not enough data yet to call it" is a real answer here - a null result never gets spun into a win.

Correlation ≠ causation - and the app says so, out loud. n=1 has confounders; rigor is the point.

Pricing

Free to run. Pro to go deeper.

Free

$0 - forever

✓1 active experiment at a time
✓All 6 launch templates
✓Full verdicts with numbers
✓Baseline mode between experiments
✓CSV / JSON export - never paywalled
✓Cloud sync across your devices

Your data is yours. Export stays free no matter what - that's a trust thing, not a feature.

Pro

Everything in Free, plus the deep end.

7-day free trial

✓Unlimited experiments + full history patterns
✓Benchmark - see how you compare, anonymized
✓Themes from your notes - processed on-device
✓Apple Health / Google Fit auto-import

$2.99 monthly

$29.99 yearly · best value

$49.99 lifetime

Your $40 stack deserves a real answer.

Pick a template tonight, check in tomorrow, and know in three weeks - instead of wondering for another year.