IJZER app icon
Workout Log

JUST TRAIN.
NO FUSS.

IJZER is a lean workout app for people who want to log their training, see progress, and get back into the gym. No ads, no tracking — just a logbook that grows with you.

Features

Everything you need, nothing you don't

Log workouts

Log every set with weight and reps, including warm-up sets. Build your own routines or log one-off sessions.

Workout timer

Track the total duration of your training, with pause and resume — you decide when the clock runs. The duration is saved to your workout history.

Custom exercises

Add your own exercises if your favorite lift isn't in there yet — including a category for anything that doesn't fit the standard list.

📈

Progress you can see

View your full workout history and personal records per exercise in clear charts.

🎯

Monthly goals

Track how much weight you've lifted this week, this month, and in total. Set your own goal and see at a glance how far you've come.

Stay motivated

Earn XP and levels for every completed workout, and collect badges as you get more consistent.

👥

Train together

Add friends, compare your monthly leaderboard, and see who's strongest per exercise — without ever having to share individual workouts.

📦

Backup & switch devices

Export your workout data to a file and import it again on a new device — you never have to start over.

In action

A lean logbook that grows with you

Logging a set in IJZER IJZER home screen Active workout in IJZER Workout history in IJZER Progress chart in IJZER IJZER profile screen
IJZER Premium

Optional, never required

The full app is free to use. Premium adds five extras.

Monthly
€1.99 / month
  • Unlimited custom routines (free up to 3)
  • Track body weight with a clear chart
  • Add friends and view the monthly leaderboard
  • Compare personal records per exercise with friends
  • Export and import your workout data as a backup
Yearly
€17.99 / year
  • Unlimited custom routines (free up to 3)
  • Track body weight with a clear chart
  • Add friends and view the monthly leaderboard
  • Compare personal records per exercise with friends
  • Export and import your workout data as a backup

Your data, your device

You sign in with your Google or Apple account, but your workout history, routines, and body weight stay right on your own device — we never see them.

Privacy Policy
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Get started today

No ads. No trackers. Just training.