One app for your entire optimization stack.

Cold plunge, breathwork, supplements, sleep, fasting, workouts — biohackers track 10+ daily variables but scatter them across 5 different apps. OutLast is the unified daily log for everything you do to optimize your body and mind.

Start tracking your stack
TODAY
5/6
STREAK
45d
SCORE
94
🧊Cold Plunge · 3 min
💊Supplement Stack
🌬️Breathwork · 10 min

You're optimizing everything. But tracking nothing.

Biohackers run complex daily protocols — cold exposure, breath work, supplement stacks, sleep optimization, fasting windows, strength training. But most are logging across 5 different apps, or not logging at all. Without a single biohacking tracker, you can't see what's actually working.

Your cold plunge app doesn’t talk to your sleep tracker, which doesn’t talk to your fasting app — you’re flying blind

Supplement stacks, breathwork, and meals have no good tracker at all — you’re relying on memory or scattered notes

You can’t correlate variables when they’re in different apps — did the morning cold plunge improve your sleep, or was it the magnesium?

OutLast puts your entire biohacking routine in one daily log — so you can finally see what’s moving the needle

Log your full stack

Cold plunge, breathwork, supplements, sleep, meals, workouts — log everything with one-tap entries. Each biohack takes seconds. Your entire morning routine is captured in under a minute.

Set goals for every protocol

Create custom goals like "cold plunge 5x/week," "daily breathwork," or "8 hours sleep." OutLast auto-checks each goal as you log entries throughout the day.

See what actually works

Track energy, mood, and focus alongside your protocols. Over time, spot the patterns — which combination of habits gives you the best days. Data-driven biohacking.

🧬

Log everything in one app

Cold plunge, breathwork, supplements, sleep, meals, workouts, sauna, meditation — every biohack in a single daily log. No more switching between 5 different trackers.

🎯

Custom goals for every protocol

Set targets like "cold plunge 5x/week," "daily breathwork," "16:8 fasting window," or "7+ hours sleep." OutLast auto-tracks progress and checks off goals when you hit them.

🔥

Streak tracking across ALL habits

One streak counter for your entire biohacking routine — not just one habit. See your current streak, longest streak, and how consistent you are across your full optimization stack.

Energy & mood correlation

Log how you feel throughout the day. Over time, see which combination of protocols — cold + breathwork? Supplements + sleep? — actually gives you peak performance.

Daily variables
Tracked by the average biohacker across multiple protocols
To replace 5
One unified daily log for your entire optimization stack
To see compounding
Consistent tracking reveals which protocols actually move the needle

I was using a cold plunge app, a sleep tracker, a fasting timer, and a notes app for supplements. Now everything is in OutLast. I can finally see my full protocol at a glance.

R
Ryan D.
45-day streak

The correlation between my morning routine and energy levels became obvious once I started tracking everything in one place. Cold plunge + breathwork before 7 AM = best days.

A
Alicia T.
Tracks 8 daily habits

I follow a Bryan Johnson-inspired protocol and needed somewhere to log everything without friction. OutLast is the only app that doesn’t force me into a single category.

D
Derek K.
90-day streak

Stop scattering your data. Start seeing the full picture.

Every biohack you don’t log is a data point you’ll never get back. Start tracking your entire optimization stack today.

Free to use. No account required to start.

Start tracking your stack