18:6 fasting tracker
18:6 is the intermediate fasting protocol — long enough to tap into deep fat-burning and autophagy, short enough to eat 2-3 real meals. OutLast scores your 18:6 compliance daily, tracks your 6-hour eating window, and shows you whether your protocol is actually working.
Free to use · No credit card · 2 sec to log
Also track: Sleep · Workouts · Cold Plunge · Supplements · Hydration · Caffeine
The problem
16:8 apps give you an 8-hour eating window that feels too loose — you end up snacking for hours and undermining your fast
OMAD trackers expect one meal in one hour, which isn't realistic if you want 2-3 meals and a social life
Timer apps start a countdown but don't score your 18:6 compliance, track your eating window precision, or log how you feel
OutLast scores your 18:6 compliance daily, tracks your 6-hour eating window to the minute, and shows you which meal patterns give you peak energy
How it works
Tap, describe what you ate, done. OutLast timestamps each meal and calculates whether you stayed inside your 6-hour eating window — no manual timers, no start/stop buttons, no fuss.
OutLast scores your 18:6 compliance every day. Nail your 18-hour fast and eat within your window — your score reflects it. Break early or stretch the window — the score tells the truth.
Two meals or three? Noon start or 1 PM? Log energy with each meal and over weeks you’ll discover the exact 6-hour window and meal timing that makes your body perform best.
What you get
OutLast understands the 18:6 fasting schedule out of the box. No need to create a custom timer or hack an 8-hour window down to 6. Select 18:6 and start logging — it just works.
Get a score every day based on how well you stuck to your 18-hour fast and 6-hour eating window. Consistent days score high. Slips and late-night snacks bring it down. Honest, automatic accountability.
Your eating window is just 6 hours. OutLast tracks it to the minute — when your first meal started, when your last bite landed, and whether you stayed inside your target. Every minute counts at 18:6.
Log how you feel after each meal in one tap. Over time, see which foods and meal timings give you sustained energy vs. the ones that spike and crash. Your data reveals the ideal 18:6 plate.
The science
What people say
“I did 16:8 for a year and plateaued. Switched to 18:6 and needed a tracker that actually supported it. OutLast scores my compliance daily and the 6-hour window tracking keeps me precise. I’ve lost the last 10 pounds I was stalling on.”
“I tried OMAD but it was too extreme — I was binge-eating at dinner. 18:6 is the sweet spot for me. OutLast showed me that a 12-6 PM window with two big meals gives me the best energy scores. Couldn’t have figured that out without the data.”
“The eating window precision feature is everything. I used to think I was doing 18:6 but OutLast showed me I was actually eating over 7 hours most days. Once I tightened it to a real 6-hour window my results completely changed.”
Questions
Every meal is a data point. Every fast builds your streak. OutLast scores your 18:6 compliance and shows you the eating window that works best for your body.
Free to use. One-tap logging. Built for 18:6.
Start tracking 18:6Free to use · No credit card · Takes 2 seconds