Hessible
com.circumspace.contactstr
HERMETICVM hermeticvm@circum.space A privacy-first Android contacts app. Your contacts are encrypted end-to-end and stored on Nostr relays — readable only with your key, syncable across devices, with no central server.
First release: Aug 26, 2026, 3 total releases.
Most recent release: Sep 14, 2026.
Appears in 1 app stack.
0 sats / 0 zaps received in the past year.
Sats Received
Underlying data available via MCP: app_zaps, app_releases.
Zap Count
Underlying data available via MCP: app_zaps, app_releases.
Releases
- Sep 14, 2026 0.1.2Hessible 0.1.2 is a size, speed, and reliability update. There are no new screens — the app is smaller and mirrors and syncs contacts with less work. ### Highlights - **Much smaller download:** the release build is now minified and resource-shrunk, cutting the APK from roughly 32 MB to roughly 20 MB. - **Faster startup and sync:** contact list updates, system-contacts mirroring, and at-rest key access are all cheaper, so large address books sync with noticeably less overhead. - **Encrypted photo storage defaults:** contact photos upload to `blossom.circum.space` first, with
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`blossom.band` as a fallback, and the encrypted copy is mirrored for redundancy. ### Install Download `hessible-v0.1.2.apk` below and install it on Android 8.0 or newer. It installs as an update over Hessible 0.1.1 without removing app data. Android may ask you to allow installs from the browser or file manager you used to open the APK. The accompanying `.sha256` file can be used to verify the download. Release signing certificate SHA-256: `EC:82:BE:84:EA:62:1F:01:4B:9E:DE:7E:E5:B6:AF:D2:3B:03:95:EF:1C:FA:80:FE:3F:BE:39:CA:88:B8:75:E2` ### Please note - This is an early preview. Back up your Nostr secret key before relying on Hessible as your only copy of important contacts. - The new relay and Blossom defaults apply to fresh installs. Existing relay and photo-server settings are preserved across the update. - Relay availability and retention policies vary. Configure multiple relays, including a durable paid, self-hosted, or on-device relay when possible. - Nostr deletion requests are advisory. Hessible remembers tombstones locally to hide stale copies, but a relay may retain previously published encrypted events. - The APK continues to use the Android package ID `com.circumspace.contactstr`. - Sep 12, 2026 0.1.1Hessible 0.1.1 introduces a new visual identity built around two interwoven ribbons forming an H. ### Highlights - **New launcher icon:** a distinct coral, amber, and purple H replaces the original amphora design. - **Native adaptive artwork:** Android 8.0 and newer receive separate foreground and background layers that remain correctly framed across launcher icon shapes. - **Themed icon support:** Android 13 and newer can use a monochrome version of the same mark when themed icons are enabled. - **Consistent branding:** the About screen, repository README, and Play Store export use artwork
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generated from the same editable vector source. - **Reusable source assets:** editable SVG artwork and generated Android, macOS, and Linux exports are included under `branding/icons`. ### Install Download `hessible-v0.1.1.apk` below and install it on Android 8.0 or newer. It can be installed as an update over Hessible 0.1.0 without removing app data. Android may ask you to allow installs from the browser or file manager you used to open the APK. The accompanying `.sha256` file can be used to verify the download. Release signing certificate SHA-256: `EC:82:BE:84:EA:62:1F:01:4B:9E:DE:7E:E5:B6:AF:D2:3B:03:95:EF:1C:FA:80:FE:3F:BE:39:CA:88:B8:75:E2` ### Please note - This is an early preview. Back up your Nostr secret key before relying on Hessible as your only copy of important contacts. - Relay availability and retention policies vary. Configure multiple relays, including a durable paid, self-hosted, or on-device relay when possible. - Nostr deletion requests are advisory. Hessible remembers tombstones locally to hide stale copies, but a relay may retain previously published encrypted events. - The APK continues to use the Android package ID `com.circumspace.contactstr`. - Aug 26, 2026 0.1.0Hessible 0.1.0 is the first packaged preview of a private, Nostr-native address book for Android. It keeps contacts under your own Nostr identity instead of putting a central service in charge of your data. ### Highlights - **Private by design:** contact records are NIP-44 encrypted before they leave the device and are stored as addressable Nostr events across the relays you choose. - **Reliable multi-device sync:** a durable outbox retries offline edits, while persistent tombstones prevent deleted contacts from being resurrected by stale relay data.
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- **Nostr-aware contacts:** link an `npub`, search public profiles by name, resolve NIP-05 identities, and use profile metadata and avatars in the address book. - **Android integration:** mirror Hessible contacts into Android's contacts provider, including phone, SMS, email, map, browser, and installed-messenger actions. - **Flexible organization:** favorites, categories, birthdays, notes, addresses, and websites are all supported. - **Easy transfer and sharing:** import or export standard vCards, paste contact lists, and share or scan contact QR codes. - **Encrypted photos:** contact images can be encrypted locally and mirrored to configured Blossom servers. - **Your choice of keys:** create or import a local Nostr key, or connect an external Amber signer. ### Install Download `hessible-v0.1.0.apk` below and install it on Android 8.0 or newer. Android may ask you to allow installs from the browser or file manager you used to open the APK. The accompanying `.sha256` file can be used to verify the download. Release signing certificate SHA-256: `EC:82:BE:84:EA:62:1F:01:4B:9E:DE:7E:E5:B6:AF:D2:3B:03:95:EF:1C:FA:80:FE:3F:BE:39:CA:88:B8:75:E2` ### Please note - This is an early preview. Back up your Nostr secret key before relying on Hessible as your only copy of important contacts. - Relay availability and retention policies vary. Configure multiple relays, including a durable paid, self-hosted, or on-device relay when possible. - Nostr deletion requests are advisory. Hessible remembers tombstones locally to hide stale copies, but a relay may retain previously published encrypted events. - The APK currently uses the existing Android package ID `com.circumspace.contactstr`.