How fast can I set up a memory rotation?

Ten minutes: install Bubbles In Time ($2.99), multi-select thirty favorites from your gallery, allow the overlay permission, pick a frequency. The first bubble floats immediately after.

The longer answer

This is what Bubbles In Time was built for: not a feed you scroll and not a notification you open, but your own memories drifting past while you go about your day.

Setup cost is the killer of every photo project. This one's under the length of a coffee.

How Bubbles In Time handles it

Bubbles In Time uses Android's display-over-other-apps permission (SYSTEM_ALERT_WINDOW) to float your photos above whatever you're doing, then get out of the way.

Add the photos, videos, or message threads that matter to the in-app gallery, grant the one-time overlay permission, and pick a frequency from every 30 minutes to every 4 hours. From then on, memory bubbles drift over whatever you're doing — tap to open, swipe to dismiss, pause the whole layer with one switch whenever you need stillness. Everything runs on-device: no account, no uploads, no ads, $2.99 once.

Worth knowing

The rotation rewards curation over volume — twenty photos you love beat two hundred you tolerated. The Mystery Photo option keeps genuine surprise in the mix, and because nothing depends on a server, the whole experience works identically offline, abroad, and on every modern Android phone.