Cobalt

about

description

Cobalt is an offline-first personal archive and capture app for Android. It stores links, notes, images, audio clips, code snippets, and movie/anime watchlists in a local Room database without requiring an account. Capture Methods: - Android Share Target: Save text, URLs, images, and videos directly from other apps via the system share sheet. - Floating Overlay: Access a screen-edge panel to write quick notes, capture links, or trigger OCR without leaving your current app. - Screen Region OCR: Capture a screenshot or crop a region on screen using MediaProjection to extract text and links. - Quick Settings Tile: Launch OCR capture directly from the system Quick Settings panel. - Voice Notes: Record audio memos with real-time waveform display, stored locally on device. - Home Screen Widgets: View recent captures or trigger capture actions from your home screen. Organization & Viewing: - Supported Item Types: Links (with metadata previews), Markdown text notes, Photos/Images, Video clips, Code snippets, Audio recordings, and Movies/Anime. - Folders & Archive: Organize items into custom folders or archive them to remove them from the main feed while keeping them stored. - Search & Filters: Search across titles, content, extracted OCR text, and URLs, with filter chips for each media type. - Media Hub: Track movies and anime with watch statuses (Plan to Watch, Watching, Completed), genres, ratings, and release years. - Storage Management: View local storage usage broken down by media type, with options to delete cached files. Network & Privacy Disclosures: The FOSS build stores all data locally on your device. It does not include analytics, tracking SDKs, or background synchronization services. Certain optional features connect to external APIs: - AI Screen OCR & Transcription: Sends selected image regions or voice notes to Google's Gemini API for processing. This requires you to provide your own Gemini API key in Settings. - Movie & Anime Data: Queries The Movie Database (TMDb) and Jikan (MyAnimeList) for media details and poster images. TMDb searches require your own TMDb API key. - Trailers: Embedded playback of YouTube trailers on media detail screens.

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-16T02:10:18.127114+00:00

last event

2026-10-25 22:08 UTC

website

https://github.com/hanan-bhatti/cobalt

install

zapstore.dev or any Zapstore-compatible client

topics

#bookmark #note #task

source & build

repository

https://github.com/hanan-bhatti/cobalt

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

missing

releases (kind 30063)

2 releases indexed; latest 2.2.1.

version	channel	released	event
2.2.1	main	2026-10-25 22:08 UTC	ff5fa570…
2.1.2	main	2026-10-13 15:59 UTC	c5ebdd85…

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

2.2.1 — cobalt-foss-v2.2.1.apk

sha256

b4cef8b16eacc44994b2334303cfa4c1e95f65dad0ca03750154aeb061c70f12

size

5.4 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

17

apk cert sha256

9af192bc1865c315591539bd4022e69e6a35e597384b846d3b3f272e74c6e2cb

download

cobalt-foss-v2.2.1.apk

2.1.2 — cobalt-foss-v2.1.2.apk

sha256

bae3daf17685125986e18887649a6b31f53f40d4409a369fb19b538d4ade7ae2

size

5.3 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

15

apk cert sha256

9af192bc1865c315591539bd4022e69e6a35e597384b846d3b3f272e74c6e2cb

download

cobalt-foss-v2.1.2.apk

Showing the newest 2 asset descriptors; the full set is in /api/apps/78ce6faa…