Remember your last session.
Your previous sets are right beside today’s. Weights and reps are prefilled, so you have a starting point.
Δ YOUR WORKOUT JOURNALPut in the work.
Put in the work.
See the difference.
Sets, reps, and the small wins in between.
A simple, private place to keep your training moving.
Then CHF 12/year or CHF 3/month.
Payment details required. Cancel before day 30 to avoid a charge.
LESS FIDDLING. MORE LIFTING.01 / LOG IT
MONDAY · UPPER BODY
A little stronger today.
Elapsed time32:18
EXERCISE 01
Bench press
Chest · Barbell
| SET | PREVIOUS | KG | REPS | Complete |
|---|---|---|---|---|
| 1 | 60 × 8 | 62.5 | 8 | |
| 2 | 60 × 8 | 62.5 | 8 | |
| 3 | 60 × 8 | 62.5 | 8 |
90-second rest timer2 / 3 sets done
Last session, right there.
Your next set, a little better.
Built for your actual workouts A private journal Open source, by choice
01 / AT THE GYMA journal that knows
A journal that knows
what you came to do.
Open your workout. Pick up where you left off.
Get back to the next set.
Make the exercise yours.
That cable machine in the corner? Give it a name, add a photo, and keep your setup notes with it.
Log it. Rest. Go again.
Check off your set and start the 90-second rest timer. Changes save automatically as you train.
Keep a good workout going.
Repeat a previous session instead of rebuilding it. Your exercise list comes with you.
YOUR MACHINE. YOUR PHOTO.
CUSTOM EXERCISE
Cable row · corner machine
BackCableSeat at 4. Neutral grip.
Keep the last rep controlled.
02 / BETWEEN SESSIONSProgress is easier to see
Progress is easier to see
when you keep a record.
Look back at your workouts. Follow your strength over time. Keep body-weight check-ins and private progress photos in the same place.
Strength charts Workout history & duration Body-weight check-ins & photos
YOUR PROGRESS
Small steps add up.
Bench press · best set weightkg
Your work, over timeExample data
OPEN SOURCE. OPEN BY DESIGN.Your training.
Your training.
Your choice.
A private journal should be something you can trust. Repdelta’s source code is open to read, and the same core features are free to run on your own server.
Explore the sourceA SIMPLE JOURNAL. A SIMPLE PRICE.More room for progress.
More room for progress.
Less to think about.
One subscription. All the journal features.
Take 30 days to see how it fits your training.
Repdelta Cloud
30 days freeCHF12/ year
Equivalent to CHF 1/month, billed yearly. Applicable tax included.
- Workouts, sets, reps & notes
- Your own exercises & machine photos
- History, repeat workouts & strength charts
- Body-weight check-ins & private photos
Payment details required. CHF 0 due today. After 30 days, your chosen plan renews automatically at CHF 12/year. Cancel before the trial ends in Settings → Manage billing to avoid a charge. Choose your plan in the app.
What happens after the free trial?
Your chosen plan renews automatically after 30 days: CHF 12 per year or CHF 3 per month, including applicable tax. Payment details are required to start the trial. Cancel before it ends in Settings → Manage billing to avoid a charge.
Can I use it on my phone?
Yes. Repdelta works in your browser on phones, tablets, and desktops. You can add it to your iPhone home screen for quick access. An internet connection is required; there is no offline sync.
Can I add my own exercises?
Yes. Create private exercises with your own name, target muscle, equipment, notes, and a photo from your camera or gallery. A picture of the actual machine makes it easier to find the right exercise next time.
What can I track?
Workouts, sets, reps, weight in kilograms, session duration, and notes. You also get workout history, repeat-session shortcuts, strength charts, body-weight check-ins, and up to four private progress photos per check-in.
How does self-hosting work?
The same core journal is available free under the AGPL-3.0 license. Run it on your own server with Docker and manage your own accounts, storage, and backups. Repdelta Cloud handles hosting for you with a paid subscription.
What happens if I cancel?
You can manage cancellation in Settings → Manage billing. Your access follows the subscription status shown in your account. A lapsed subscription does not automatically delete your journal. Contact us if you want your cloud account and journal deleted.
A little structure.
A lot of progress.
Start your 30-day trial30 days free. Payment details required.