You train.
Iro does the rest.
All it needs to know is whether each set felt Easy, OK or Hard. From that, Iro works out the weight for your next workout.
Stuck on the same weight for months?
Lifting the same weight week after week is completely normal. It isn't a lack of effort: nobody tells you when to go up, by how much, or when to step back a little so you come back stronger.
Iro decides it for you, set by set.
How it works
Three steps, and Iro takes care of the third.
- 60 kg × 8 repsBench press, set 3
1Do your set.
Iro tells you the weight and reps for today, with the plates for each side if you use a bar.
- EasyOKHard
2Tell it how it went.
Easy, OK or Hard. That's all it needs to know.
- Next time62.5 kg +2.5 kg
3Iro works out the next weight.
After every workout, each lift knows where it goes next. And if you stall, Iro eases off a little so you can climb higher.
Every exercise, in 3D.
A moving figure shows you the technique for each exercise, with no long texts. It's built into the app, so it appears instantly and works offline.
It learns your gym as you train.
Every machine steps up its weight differently. When a weight doesn't fit, Iro asks you one question and remembers the answer. You'll never have to register a list of machines.
The tips a good coach would give you.
Iro pays attention to how you train and speaks up at the right moment, without lecturing.
- Weaker side first, then the same reps on the other one.
- A little less weight when that muscle has already worked today.
- Warm-ups only when the muscles are cold.
- A short pause still counts as one set.
- A heads-up before you start if a muscle is still recovering.
See which muscles are ready.
Recovery, Balance and Strength, drawn on your own body. At a glance you'll know what's due today and what you've been leaving out.
Plates and warm-ups, already worked out.
For every bar, from an Olympic bar to an EZ bar. Iro tells you which plates go on each side and sets up warm-ups only when you need them.
On your watch too.
Log your sets and check how much rest is left from your wrist, without taking your phone out of your pocket.
Coming from Hevy?
Bring your whole history over in a moment, and Iro will pick your weights from day one.
Questions
How much does it cost?
You can try all of Iro for 7 days. After that it stays free, and the Pro features unlock with a purchase in the store.
Do I need an account?
No. Iro has no accounts. Open the app, pick your routine and start training.
What happens to my data?
It's yours alone. You don't need an account and nobody follows what you do. For the details, read the privacy policy.
Does it work offline?
Yes. Everything is built into the app, the 3D figures too, so you can train in a basement with no signal.
What if I don't know which weight to use?
Pick a comfortable weight to start with. Iro will adjust it every session based on how your sets go.
Is it on iPhone?
Not yet. Iro comes to Android first, and the iPhone version will follow later with the same design.
What happens when I change phones?
Your workouts travel with your Android backup. You can also export them as CSV from Settings.
Which languages does it speak?
English, Spanish and Catalan. It uses kg or lb depending on your country, and you can change it in Settings.