Early access ยท Apple Silicon ยท macOS 26

Run old 32-bit Mac apps on your new Mac.

macOS stopped opening 32-bit apps in 2019. Bisotun opens them again, on Apple Silicon.

Try free for 7 daysBuy for $24
Without Bisotun
Ex
โ€œExpendabrosโ€ needs to be updated.The developer of this app needs to update it to work with this version of macOS.OK
With BisotunThe Bisotun library with Expendabros, a 2013 game, ready to run
Apple SiliconmacOS 26 and later7-day free trialPay once

Watch a 2013 game start on a 2026 Mac.

  1. 1
    Drag in the old appAny .app built for 32-bit Intel.
  2. 2
    Bisotun checks itIt says whether the app can load before anything runs.
  3. 3
    Press RunIf it stops, Bisotun says what happened.
1
game runs fully today.Expendabros, 2013.

Is yours next? Try it free.

32-bit Intel apps onlyApple Silicon MacsmacOS 26 or laterNo PowerPC
One Mac ยท early-access price$24

Pay once. It keeps working.

7 daysFree
1 yearEvery update included
For goodYour version keeps working. New ones: $12 a year, if you want them.

Questions

Will my app work?

If it is a 32-bit Intel app, maybe. Download the trial and add it: Bisotun tells you whether it can load before you spend anything.

What happens when my year of updates ends?

Bisotun keeps working. You keep the last version released during your year. Newer versions are $12 a year.

Can I move my license to a new Mac?

Yes. Deactivate it on the old Mac in License Settings, then activate it on the new one. A license is active on one Mac at a time, and can move to two new Macs in any 30 days.

Does it work offline?

Yes. A licensed Mac checks in about once a week and keeps working for 14 days without a connection.

What does Bisotun send over the network?

License checks only. Each carries the app version, your macOS version, your chip model and an anonymous device ID. There is no other tracking.

Can I get a refund?

The refund terms will be published here before Bisotun goes on sale. Refunds

Why is it called Bisotun?

After the Bisotun inscription in Iran, carved around 520 BCE with one text in three scripts. Reading one of them is what let the lost ones be read again.