Put something on the line. Show up for 21 days.

Holdout is a home fitness challenge app. Join a 21-day challenge with an entry you choose, do your daily workout in front of your phone camera, and finish to get your entry back, plus a share of what remains from those who didn't.

Get notified

Opens your email app. Or write to moritz@rast.at.
The app isn't available yet, and this website doesn't take payments.

How it works

  1. Step 1

    Choose

    Pick a challenge and an entry, from €25.

  2. Step 2

    Work out

    Do your daily workout; reps are counted on your phone by on-device pose tracking.

  3. Step 3

    Finish

    Finish all 21 days and get at least your entry back, plus a share of what remains from the entries of those who didn't finish.

Screens from the app in development, with example numbers.

Miss a day and you lose your entry.

Unless you withdraw with a doctor's note. That's what makes showing up matter, so we say it up front.

See where every euro goes

Imagine 50 people join with €100 each, so the pool is €5,000. 30 finish and 20 don't.

Entry for everyone
Entries of the 20 who didn't finish
€2,000.00
Holdout's fee, 12% of the €5,000 pool
−€600.00
Shared among the 30 who finished
€1,400.00

Each person who finished gets€146.66

Each person who didn't finish gets €0

The fee comes only from the entries of those who didn't finish.

€146.66 is the €100 entry plus a €46.66 share, rounded down to the cent. This is an illustration, not a forecast. What you get depends on who finishes.

The challenges

Each challenge has its own daily target, shown before you join. Split it into as many sets as you like. Some examples:

  • Push-ups

    40 a day

  • Squats

    60 a day

  • Plank

    2:00 a day

Fair by design

Finish and you always get at least your entry back.

  • Whether you finish depends only on your own performance
  • Holdout's fee is 12% of the pool. It comes only from the entries of those who didn't finish and never exceeds them. If everyone finishes, there's no fee. Shown before you pay
  • Adults 18+ in Austria only, ID check before your first entry
  • Every result can be reviewed by a human
  • Ill or injured? Withdraw with a doctor's note and get your entry refunded
  • No top-ups, no deposits – money only moves for a challenge you join

FAQ

When does it launch?

We're in development and will launch in Austria soon.

Who can join?

Adults aged 18 or over who live in Austria.

Is my video uploaded?

Reps are counted on your phone, and by default no video leaves it. A short clip is uploaded only if you report a miscount or opt in to help improve counting.

What happens if I don't finish?

You lose that entry. Holdout's fee comes out of the entries of those who didn't finish, and the rest is shared among those who finished.

Can I change my mind after joining?

Until joining closes, you can leave for free and get your entry back in full. After that, you can only withdraw if you're ill or injured, with a doctor's note.

What if a rep is counted wrong?

The automatic count can be wrong. Report it in the app up to 24 hours after the challenge ends, and a human reviews it within 48 hours.

How are payouts made?

Through our payment provider to a bank account in your own name.

You finished the page.

The app comes next. Send us an email and we'll let you know when Holdout opens in Austria.

Get notified

Opens your email app. Or write to moritz@rast.at.