AI strength coach

An AI personal trainer that programs and progresses every lift.

Grit builds your strength program around your 1RMs and schedule, logs every set and RPE, and adjusts loads and volume based on how your sessions actually go — for free.

Join the waitlistHow it works

A spreadsheet tracks your lifts. It doesn't coach them.

Logging numbers in a notes app or a spreadsheet only helps if something acts on them. You still have to decide when to add weight, when to back off, and how to fit lifting around the rest of your week — and most people either push too hard or stall for months.

Gritty is an AI personal trainer built around a coach named Grit. Grit programs your lifts from your training maxes, reads how each session actually went — completed sets, RPE, missed reps — and proposes the next progression or deload. You approve every change, and your strength work lives in the same plan as your conditioning and recovery instead of in five different apps. Ask for guidance whenever you want, and watch every set, PR, and trend in one place.

How Grit coaches your strength training

Loads from your training maxes

Grit sets your starting weights from your 1RMs or recent top sets, so the first session is already in the right ballpark — not a generic percentage guess.

Progression tuned to your logs

Hit all your reps at a low RPE and Grit banks the gain into next week. Grind through a session and it holds or backs off before you stall.

Set logging that keeps up

Log sets in-app with pause/resume between efforts. Wearing a heart-rate strap? Grit uses the spike at the start of a set to track your work.

Deloads and recovery on purpose

Grit plans recovery and deload weeks into the block instead of waiting for you to burn out, and reschedules when you miss sessions.

Strength alongside everything else

Running, riding, or a sport on the side? Grit balances lifting against your other training so the week adds up instead of overreaching.

It remembers your constraints

Bad knee, home gym only, no Tuesdays — tell Grit once and every future program respects it.

You stay in control

Travelling, run-down, or ready to add volume? Just ask Grit and it reshapes your lifting block for you — deload, pause, or push. Every change is a proposal you approve.
Full-screen strength program review showing phases, days per week, and the week template before saving.
See the whole block
Review the full program — edit any session before you save it.
Program phases view showing a strength block broken into base, build, and peak phases.
Periodized progression
Phases and progression laid out across the whole training cycle.
Grit confirming a recurring mobility reminder with a real push notification.
Stay accountable
Ask Grit to remind you — it schedules a real push notification.

Built for lifting, not bolted on

Set, rep & RPE logging

Log every working set with pause/resume; Grit reads it into the next session.

Benchmark-driven loads

Starting weights come from your 1RMs and update as you get stronger.

Planned deloads

Recovery and deload weeks are built into the block, not an afterthought.

Lifting + cardio in one plan

Run multiple programs in parallel, or hold strength and conditioning together.

PRs across every lift (Premium)

Track personal records on each movement, not just one headline number.

Free to start

Full coach, a complete program, and set logging cost nothing.

AI personal trainer — FAQ

Is this really an AI personal trainer?
Grit does the programming a personal trainer does — sets your starting loads from your 1RMs, plans progression and deloads, reads how each session went, and adjusts what's next. It's a coach for your training, not a medical or physiotherapy service, and every program change is a proposal you approve.
What kind of strength training does it program?
General strength, hypertrophy, and powerlifting-style work. Tell Grit your goal — "get stronger", "put on muscle, three lifts a week", or a specific total — and it builds a progression around your schedule and available equipment.
Does it track sets, reps, and RPE?
Yes. You log sets in-app with pause/resume, and Grit factors completed sets and RPE into the next session's loads and volume. It can even use heart-rate spikes to detect when a new set starts.
Can I combine lifting with running or other cardio?
That's the whole idea. One Gritty program can hold your strength work plus conditioning, mobility, and recovery, so your lifting and cardio don't fight each other across the week.
Does it remember my constraints?
Yes. Tell Grit "left knee is sensitive on impact", "no Tuesdays", or "only have dumbbells at home" and it saves the constraint and plans around it. You can list and forget these anytime.
Is it free?
Yes. The coach, a full program, set logging, and imports are free. Premium (€7.99/month or €69/year) adds unlimited chat, a review on every session, multiple programs, and deeper analytics like PRs across every lift.

Train with a coach that adjusts to your lifts

Join the waitlist and be among the first to train with Grit when Gritty Fitness launches on iOS and Android.

Join the waitlist