Fortschrittchen
Your training log for the gym
$2.99 · Designed for iPhone. Not verified for macOS.
Now in landscape and on iPhone Duo: unfolded, machines and exercises side by side; propped up as a tent on the bench, your rest timer in plain view.
Fortschrittchen is a training log. It remembers what you did on every machine — weight, reps, sets — and suggests the smallest possible increase next time.
Nothing more. And that is on purpose.
WHAT IT DOES
Your machines stand in the order you walk through the gym. Before every set, one single question: how was last time? Went well, was demanding, was hard. The next value follows from that — a little more weight, one more rep, or exactly the same again.
There is a break timer between sets that you can set per machine. It keeps running on the lock screen, where the next set can be logged without opening the app. On your wrist you log with the Apple Watch, even with no iPhone in range. The lock screen widget shows which machine is still open today.
Portrait or landscape, folded or unfolded: Fortschrittchen arranges itself for the space it gets. On iPhone Duo, machines and exercises sit side by side; half-folded, the exercise lies to the right of the fold like a page in your notebook; and propped up as a tent on the bench, it shows your rest timer large.
WHAT IT DOES NOT DO
No workout plans. No calories, no scale, no nutrition. No leaderboards, no friends, no likes. No streak counters — a break is not a failure, and it is not even shown in red here. No ads, no subscription, no account.
YOUR NUMBERS STAY YOURS
Fortschrittchen collects nothing about you. There is no server. Your data lives on your device and, if you want, in your private iCloud — where we cannot reach it. Everything can be exported as CSV at any time.
THE STAIRCASE
Every time you manage more than last time, a step is added. It never gets smaller. Even after three months away it is still standing where you left it.
Built for people who are starting out. Anyone who has trained for ten years has a system already. Anyone who is new needs only one thing: to write down what happened — and to do a little more next time.
Fortschrittchen is a training diary, not health advice.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fortschrittchen now turns with you.
• Landscape: every screen has its own landscape layout, on every iPhone. Logging a set shows the weight and rest timer on the left, the controls on the right.
• iPhone Duo: unfolded, machines and exercises sit side by side. An exercise opens as a card, and the list with its checkmarks stays in view – tap “Done” and the checkmark appears right next to it.
• Half-folded like a book: machines on the left, the exercise on the right. Like a laptop: the number large on top, the controls below. Propped up as a tent on the bench: the rest timer readable from a distance.
• Folding or unfolding mid-set loses nothing – not the set, not the running rest timer.
• History and calendar use the width: exercises as a list next to the chart, the month next to the selected day.
• Lock Screen and Dynamic Island: the rest timer empties as a ring, with your sets so far right below.
• Widgets: tap “Next machine” to jump straight to its exercises.
The developer, Christian Wieczorek, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Christian Wieczorek
- Size
- 9.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- Copyright
- © 2026 Christian Wieczorek
