Observed arrival · 2026-10-26
Lumen keeps photo search on your phone
Lumen is an open-source Android gallery for searching photos by description, selecting text in images, and grouping faces, with its smart features designed to run on-device.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Android users who want searchable photo libraries kept on-device
- Worth noticing
- The homepage lists optional smart-feature models at about 340 MB or 770 MB, in addition to an app download of about 70 MB.
Field notes
The homepage gives implementation details rather than treating “on-device” as a blanket promise: it says models are downloaded when a feature is enabled, while maps and update checks also use the network. It sizes the optional search models separately and says overnight indexing can be scheduled. The page links to source code and invites bug reports, while acknowledging that Pixel behavior has not been tested.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue