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Mail by Form*

com.formstr.mail

android MIT kind 32267

Email on Nostr — your keys are the account, and your mail lives encrypted on relays you choose.

latest release
0.3.1 main
released 2026-10-21 01:25 UTC
download apk
app-release.apk · 8.1 MB
android-arm64-v8a vcode 6
✓ signed cert 10549b63…
screenshotscreenshotscreenshotscreenshotscreenshotscreenshot

about

description
Your email should belong to you, not to the company that hosts it. Mailstr makes that real. You get a name@mailstr.app address that runs on Nostr and is tied to a keypair you control instead of an account a provider owns. You sign in with your keys, so there's no password and no phone number to hand over. Mail sent to your address is encrypted and stored on the relays you choose, and only your key can read it. Write to other Nostr users directly, or to any ordinary email address through the bridge. It's all built on an open spec, so you can open the same mailbox in other compatible clients, switch relays, or leave for good — your mail follows your key, not our servers. Claiming your address is a one-time payment. No subscription, no data harvesting, and no one reading over your shoulder.
publisher
073cd836b557a9fdc2a62c27373273da0c556a7008763f7f0e2b7f28ea754fd6
first seen
2026-09-19T15:37:02.654826+00:00
last event
2026-10-21 01:28 UTC
website
https://mailstr.app
install
zapstore.dev or any Zapstore-compatible client
topics
#decentralized #email #encryption #lightning #mail #nip05 #nostr #privacy

source & build

repository
https://github.com/formstr-hq/nail
arch flags
android-arm64-v8a
manifest
zapstore.yaml ok checked 2026-09-30T18:07:17.057126+00:00
parsed zapstore.yaml (gap-filler — event fields always win)
{
  "images": [
    ".shots/mobile/landing-hero.png",
    ".shots/mobile/client-login.png",
    ".shots/mobile/client-inbox.png",
    ".shots/mobile/client-inbox-dark.png",
    ".shots/mobile/client-compose.png",
    ".shots/mobile/client-compose-dark.png"
  ],
  "license": "MIT",
  "metadata_sources": [
    "github"
  ],
  "repository": "https://github.com/formstr-hq/nail",
  "summary": "Email on Nostr \u2014 your keys are the account, and your mail lives encrypted on relays you choose.",
  "supported_nips": [
    "05",
    "07",
    "46",
    "49",
    "55",
    "59",
    "98"
  ],
  "tags": [
    "nostr",
    "email",
    "mail",
    "privacy",
    "encryption",
    "nip05",
    "lightning",
    "decentralized"
  ],
  "website": "https://mailstr.app"
}

releases (kind 30063)

3 releases indexed; latest 0.3.1.

versionchannelreleasedevent
0.3.1 main 2026-10-21 01:25 UTC 673cff30…
0.2.2 main 2026-09-21 11:24 UTC da29debc…
0.2.1 main 2026-09-19 15:25 UTC de1d1e29…

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.

0.3.1 — app-release.apk

sha256
2c14b2bc02ff902f59ee1c489a74f31dc8478cb0fc3ab740166fc8884bab10ff
size
8.1 MB
archs
android-arm64-v8a
version code
6
apk cert sha256
10549b63ee5bd87878d53ea36db2df8374ff45308430d792d480552d5a5d51f1
download
app-release.apk

0.2.2 — nail-v0.2.2.apk

sha256
1301613f230aa116b8939a3e4171814c36ae1c6c6920ab92d98c54ebd430aa5d
size
9.4 MB
archs
android-arm64-v8a
version code
4
apk cert sha256
10549b63ee5bd87878d53ea36db2df8374ff45308430d792d480552d5a5d51f1
download
nail-v0.2.2.apk

0.2.1 — nail-v0.2.1.apk

sha256
bfbf21957974805f4ccbcd2c91b04fd61cf1a5d41400a57ec3d56908908b6b09
size
9.3 MB
archs
android-arm64-v8a
version code
3
apk cert sha256
10549b63ee5bd87878d53ea36db2df8374ff45308430d792d480552d5a5d51f1
download
nail-v0.2.1.apk

Showing the newest 3 asset descriptors; the full set is in /api/apps/073cd836…