01 / on-device
Private by architecture.
Classification runs locally using on-device AI. Nothing is sent off-device to decide what a photo is.
for android · on-device ai
Keep the photosthat matter.
Siftly is a quiet, on-device sieve for your camera roll. It separates real memories from the receipts, screenshots, and blur — then backs up only the keepers to Google Photos.
what siftly is
Your camera roll, quietly curated before it ever leaves your phone.
02 / selective
Backs up what you'd miss.
Only photos marked as keepers are uploaded to Google Photos. Screenshots, receipts, and QR blurs are left behind — not deleted, just not archived.
03 / ambient
Works while you don't think about it.
Runs hourly on Wi-Fi + charging, or on demand. No feeds, no streaks, no notifications that don't matter.
how it works
Four quiet steps between shutter and archive.
step / 01 · detect
A new photo appears.
Siftly picks it up through the system's media index — no gallery polling, no thumbnails copied.
step / 02 · classify
On-device AI reads it.
Locally, in batches of five. Each photo becomes one of eight categories — people, nature, food, documents, and more.
step / 03 · decide
Keeper, or clutter.
Memories get queued for backup. Utility shots stay on your phone where they started.
step / 04 · archive
Uploaded when conditions are right.
Google Photos receives only the keepers, on Wi-Fi and while charging. You can also tap Back up now.
the app
A dashboard that tells you one thing: how much space we kept out of your cloud.
A single number. A smart-backup switch. A storage-health gauge that climbs as you sift. That's most of it.
- A.Smart Sifting Status — megabytes kept local this week
- B.Smart backup — one switch to let Siftly work in the background
- C.Storage Health — live split of what's local vs. in the cloud
- D.Sifting Activity — categories synced, at a glance
- E.Home and Photos — two tabs, nothing buried
Siftly
Your photos, effortlessly safe
SMART SIFTING STATUS
27MB
kept out of your cloud
+27 MB this week7-day savings
Smart backup
Sifting Activity
0 categories synced
No activity yet
Storage Health
Kept Local
100%
LocalCloud
4 photos
0 synced
Document1 photo
Food0 photos
Nature0 photos
Other1 photo
People2 photos
Screenshot0 photos
eight categories
Every photo becomes one small word before anything else happens.
ALLPEOPLEANIMALFOODNATUREBUILDINGDOCUMENTSCREENSHOTOTHER
people
nature
animal
food
building
document
screenshot
people
nature
animal
food
buildingtap a category to filter · gold = usually a keeper · gray = usually a utility shot
privacy, in plain terms
No photo leaves your phone to be judged.
- 01Classification runs with on-device AI — your photos are read locally, nothing else.
- 02The only upload destination is your own Google Photos, authorized by you through Google's sign-in.
- 03Siftly stores a lightweight hash of each photo to avoid processing the same image twice. No cloud, no servers.
- 04You can turn auto-sift off, wipe the local index, or sign out anytime. The app stops.
questions, briefly
Things people ask first.
Does Siftly delete photos?+
Never. Photos classified as Utility simply aren't uploaded. They stay where they were — on your phone, in your camera roll, exactly as you took them.
What if the AI is wrong?+
Open the photo, tap the correct category, and Siftly remembers — for your library only. Corrections use perceptual similarity and folder patterns to improve future calls for photos like it.
Which devices support on-device AI?+
On-device AI runs on recent Android hardware that supports it. On unsupported devices, Siftly falls back to treating every photo as a keeper so nothing is missed.
Where do backups go?+
Your Google Photos library, and only yours. Siftly never holds credentials on a server — sign-in uses Android's Credential Manager with a standard OAuth2 scope.
Is there an iOS version?+
Not yet. On-device AI support on iOS is a different animal. If it becomes feasible to do the same thing privately on iOS, we'll look at it.
the beta
Keep the ones, leave the rest.
Siftly is in closed beta for Android. Leave an email and we'll send the APK when the next build ships.