What is an on-device memory app?
An on-device memory app performs everything — storage, selection, display — locally on the phone, with no account, server, or upload. Photos never leave the device; the app can't share what it never receives.
Context
The architecture is the privacy policy: 'no data shared' is enforceable when there's no pipe for data to travel. Bubbles In Time is built this way; cloud memory features definitionally are not.
Where the term shows up
You'll meet 'an on-device memory app' across the growing space of photo-resurfacing and ambient-memory tools on Android — and in Bubbles In Time, which implements the concept on-device: photos, videos, and message threads floating over daily phone use, no cloud, no account, $2.99 once.
Quick answers
What does 'an on-device memory app' mean in one sentence?
An on-device memory app performs everything — storage, selection, display — locally on the phone, with no account, server, or upload.
Does it work offline?
Completely — there's no server, so bubbles float with or without a connection.
Can I control how often memories appear?
Yes — intervals from every 30 minutes to every 4 hours, plus a master pause switch.