FortiorKnow what to lift next. See what's working.
Fortior suggests your next weights from what you actually lifted, and puts your cardio, food and recovery in the same picture, so you can see what's paying off.
- Free to log
- No account needed
- Works offline
Your training lives in four apps that never talk.
A lifting log, a running app, a food tracker and a sleep band each see one slice of your week. Fortior puts them in one place and does the math across all of it.
Walk in knowing your weights
Every set gets a suggested weight from your recent sets of that lift, aimed at the reps and effort your plan calls for and rounded to plates you can load. Tap Why this weight? to see the math. How suggestions work.
Log a set in seconds
Templates, effort ratings, supersets and a rest timer keep you moving. Your workout follows you to the Lock Screen and Apple Watch, and it all works with no signal.
Progress you can trust
An estimated max for every lift, with no testing day needed. Records only for real wins: a heavier lift, more reps at the same weight, a first-time exercise. About estimated maxes.
Lifting and cardio in one week
Record runs and rides live, or bring them in from Apple Health and Strava. Heart-rate zones show how hard each session was, and two load scores put lifting and conditioning side by side. About training load.
Food logging that keeps up
Scan a barcode or nutrition label, search, or reuse a saved meal. See calories and macros for every meal, plus micronutrients where the food data has them. With Premium, photograph your plate and check the estimate before you save it. Ways to log food.
Push on the right days
Readiness compares your recent training, sleep and HRV with your own normal. A deload suggestion appears only when several fatigue signals line up, not after one bad night. About readiness.
An AI coach that shows its work
Ask Fortior about your training, food or recovery. It answers from your records, shows the numbers behind each answer, and stays off until you turn it on.
Private by default
Your records stay on your iPhone unless you turn on Cloud sync. No ads, no selling your data. Export everything any time, or let Claude or ChatGPT read it with your approval.
Understand your numbers
Plain-language guides to every metric in Fortior, and how each one is worked out.
Train with a coach?
Your coach plans your program in Coach Workspace, part of Fortior for Coaches, and it shows up in your app, ready to train. You choose exactly what they see. How sharing works · Fortior for Coaches.
Your training already has the answers. Fortior reads them.
Free to log · No account needed · Works offline
Estimates are educational and based on your own logs. Fortior is not medical advice.