How Prodoozie updates, and what to do when no update appears

Prodoozie checks for a new version once a day and installs nothing without being asked.

How an update reaches you

A found update appears as a quiet pill on Home. Click it when you are ready.
The update window only opens when Prodoozie is already the app you are looking at. It never jumps in front of what you are doing.
No check ever runs during a recording. Installing an update quits and relaunches the app, which would end the take. If you ask for a check mid-recording, Prodoozie refuses and says why.
To check on demand: the menu bar icon, or Settings → Check for Updates….

No update ever appears

Almost always the app is not in a place it can replace itself.

Quit Prodoozie.
If Applications already holds a copy called iRecord, move it to the Trash. Your Recordings and your licence are not inside it.
Open the disk image and drag Prodoozie onto the Applications alias inside it.
Eject the disk image and launch Prodoozie from Applications.

Two locations look normal and cannot update: running the app straight off the mounted disk image (the image is read-only), and running a still-quarantined copy from wherever it was downloaded — macOS executes that from a read-only temporary location. Moving it to Applications fixes both.

"The app is damaged." The download did not complete cleanly. Delete it, empty the Trash and download again. If it happens a second time, write in — see Contacting support.

If you had iRecord

iRecord is now Prodoozie. The update that renamed it changed the name and nothing else: your Recordings, your licence and the permissions you granted all carry over, and there is nothing to do.

A few places keep the old name:

The app in Applications may still be called iRecord after the update. It is the same app, and it keeps updating.
Recordings stay in ~/Movies/iRecord/. See Where recordings are stored.
System Settings → Privacy & Security may still list the app as iRecord.