Iron Oxyde
Join the waiting list

Train with your AI coach.

Ask ChatGPT, Claude or Gemini for a program built around your goals, your schedule and your equipment. Iron Oxyde runs it set by set: the right weight, the rest timer, and more weight when you've earned it.

Iron Oxyde during a workout: bench press, set 1 of 4, with big minus and plus steppers set to 5 reps and 92.5 kg, and a large Done button.

Your AI writes the program. Iron Oxyde runs it.

  1. 1 Ask your AI

    Iron Oxyde gives you a prompt for ChatGPT, Claude, Gemini or any AI assistant. It asks about your goals, how many days you can train and for how long, your equipment, your experience and any injuries, then writes a program the app runs set by set.

  2. 2 Paste it into Iron Oxyde

    Bring the program into the app and start it. Iron Oxyde checks it and points at anything it can't use. No AI at hand? Start the built-in full-body 3-day barbell program instead.

  3. 3 Train

    Open the app at the gym and follow the day: big buttons, a rest timer, a plate calculator and automatic progression.

Fully personalised.

The program is yours: your days, your exercises, your notes, the movements you leave out. The app adapts each session to what you actually lifted.

Every exercise carries its own progression rule. Hit all your reps and the next session adds weight; work through a rep range and it adds reps first, then weight; fall short several sessions in a row and it takes some weight off so you can build back up.

A personal program in Iron Oxyde: four sessions a week built for a home rack and a past shoulder strain, with each exercise's sets, load, rest and progression rule.

Made for the gym floor

One hand, sweaty fingers, a phone on the bench. Everything you touch mid-set is big, and nothing needs typing.

The home screen: Upper 1 is next up, with bench press 4 × 5 at 92.5 kg, barbell row 3 × 9 at 62.5 kg and chin-ups, and a big Start button.

Log a set with your thumb

Open the app and today's session is waiting, its targets worked out from your last sessions. Tap Start: reps and weight sit on two big steppers already set to the target. Lifted something else? Nudge them, then tap Done. Warm-up sets from your program come first.

The rest timer counting down a 3:00 rest, with minus and plus 15 second buttons and the next set, 5 × 92.5 kg.

Rest timer

Rest starts the moment you tap Done, with the time your program sets for that exercise. Add or take 15 seconds, see what's next, and keep the screen awake while you wait.

The plate calculator for 92.5 kg: 25, 10 and 1.25 kg plates on each side of a 20 kg bar.

Plate calculator

One tap shows what goes on each side of the bar, worked out from your bar and the plates you actually own, in kg or lb. No mental arithmetic between sets.

Back squat progress: estimated one-rep max rising from 116.5 to 131.5 kg and top set from 100 to 112.5 kg over six weeks.

History and progress

Every session is kept, set by set. Each exercise gets its own chart of estimated one-rep max and top set, so you can see the weeks add up.

The programs screen: your own uploaded program marked as the one you follow, the option to upload a program.json, and the built-in full-body 3-day barbell program.

Your programs

Keep several programs and switch to another one when your goals change. Bring in a new version when your AI revises the plan; earlier versions and the sessions trained with them stay in your history.

Offline and privacy

Works without wifi

No connection at the gym? Open the app, start your workout and finish it anyway: every set is saved on your phone and syncs when you're back online. Add it to your home screen and it opens like an app.

Your data stays yours

  • Sign in with a passkey or your Google account. No password to remember or leak.
  • Export your data or delete your account any time, right from Settings.

Free during early access

Iron Oxyde is free to use while it's in early access.

Your next session is one prompt away.

Join the waiting list

We're letting people in a few at a time: join the waiting list and we'll email you an invitation. Iron Oxyde runs in your phone's browser at app.iron-oxyde.com.