Nymchat Press Kit and Brand Assets
Last Updated: August 24th, 2026
Here you will find the Nymchat brand assets, the guidelines for using them, and what you need to know about permission. Nymchat Brand Assets means the Nymchat word mark, the Nymchat wordmark and app icon, and the other artwork and design elements associated with Nymchat.
The app itself is free software under the AGPL-3.0 and you can do a great deal with it. The trademarks are separate from the code, and the guidelines below are about those.
Writing about Nymchat? The press kit has the boilerplate, the fast facts, the screenshots and the launch announcement.
Press kit
Everything a story about Nymchat needs in one place: the boilerplate, the facts worth checking against, the assets, and the announcement itself. Journalism, reviews and commentary need no permission from us — take what you need.
Boilerplate
Three lengths, cleared for use exactly as written. If you would rather write your own, everything in them is sourced from the knowledge base.
One line
Nymchat is a free, open source encrypted messenger with no accounts, and a Bluetooth mesh that keeps it working when the internet does not.
Short
Nymchat is a free, open source messenger built on Nostr, an open protocol nobody owns. There is no account and no phone number: an identity is a keypair generated on the device. Private messages and group chats are end-to-end encrypted, and a Bluetooth mesh carries messages between nearby phones with no internet, no cell service and no infrastructure at all.
Full
Nymchat — also written NYM, for Nostr Ynstant Messenger — is a free, open source messenger built on Nostr, an open protocol nobody owns. There is no account and no registration: an identity is a keypair generated on the device. Private messages and group chats are end-to-end encrypted and gift-wrapped so that relays can neither read them nor tell who sent them, with hybrid post-quantum encryption between Nymchat users. A Bluetooth mesh carries messages with no internet at all. Nymchat runs as a web app and as native Android and iOS apps, is licensed under the AGPL-3.0, and is developed by 21 Million LLC. Decentralized. Pseudonymous. Unstoppable.
Fast facts
| Fact | Detail |
|---|---|
| Name | Nymchat, also written NYM — Nostr Ynstant Messenger. One word, capital N. |
| What it is | An end-to-end encrypted messenger with no accounts, built on Nostr, with a Bluetooth mesh for when there is no network. |
| Developer | 21 Million LLC |
| Announced | August 24, 2026 |
| Platforms | Web app (PWA) at web.nymchat.app; Android on Google Play and Zapstore; iOS on TestFlight. |
| Price | Free. No advertising, no subscription, no data sold. Nymbot credits and cosmetic flair are optional purchases over Lightning. |
| License | AGPL-3.0. The web app and the Flutter app for Android and iOS are both published. |
| Accounts | None. An identity is a keypair generated on the device, ephemeral by default. |
| Network | Nostr relays, plus a Bluetooth LE mesh that is wire-compatible with Bitchat. |
| Encryption | NIP-17 gift wraps over NIP-44, with a second ML-KEM-768 (FIPS 203) layer sealed around them between Nymchat users — hybrid, so both have to be broken. |
| Languages | Messages translate into more than a hundred languages; this site is published in 132. |
| Press contact | support@nymchat.app |
The five things worth knowing
- It works with no internet. Messages hop phone to phone over Bluetooth LE, up to seven hops, with each pair of devices running its own encrypted session. Of the fourteen messengers in our own comparison, Nymchat is the only complete one — encrypted group chats, calls, media and payments — that keeps moving messages when the network is gone. See Bluetooth mesh.
- Public rooms are places. A geohash channel turns any square on Earth into a room with no owner, no membership list and no invitation. The rooms are shared with Bitchat. See Channels.
- There is no account. No phone number, no email, no registration — and Ghost Mode rotates the keys, the nickname and the advertised Bluetooth name together, roughly every fifteen minutes. See Identity and login.
- The encryption is already post-quantum. Between Nymchat users, ML-KEM-768 runs alongside the classical exchange, so traffic recorded today is not readable by a future quantum computer. On Nostr, no other client ships this. See Quantum-resistant encryption.
- The build can be checked. The source is AGPL-3.0, the web build is reproducible, and the app verifies the files it is running against signed attestations in the repository. See Verifying the build.
What we do not claim
These belong in an accurate story as much as the rest, and the comparison against thirteen other messengers says where they are stronger:
- Nymchat has not had a third-party security audit. Briar, SimpleX, Signal, Element, Delta Chat and White Noise have. What Nymchat offers instead is open source and a reproducible build anyone can check.
- Public channels are not encrypted. That is the design, but anything posted to a channel is a plaintext event on public relays.
- An ephemeral nym is not an anonymity system. It hides an identity from other users, not an IP address from a relay operator, and Ghost Mode makes a device much harder to follow rather than untraceable.
- Peer-to-peer calls reveal an IP address to the other party. That is inherent to a direct connection, not something Nymchat adds.
- The mesh is best-effort. Bluetooth range, 512-byte frames, a seven-hop limit, no delivery guarantee. It is built for text.
Screenshots and video
Every screenshot below is a real capture of the running app, and every one of them is free to use in coverage of Nymchat. The wordmark, app icon and social card are in Brand assets above.
- Public channels A geohash channel on the desktop web app, and the same conversation on a phone. Desktop Phone
- Bluetooth mesh The mesh panel: status, paired devices, peers heard and a live radio log. WebP
- Private messages An encrypted one-to-one conversation, and an encrypted group chat. Direct Group
- Geohash explorer The world map of where people are actually talking, one dot per active channel. WebP
- Calls A group video call, each tile a direct connection to that person's device, and an incoming call. Group call Incoming
- Nymbot A private, end-to-end encrypted chat with the built-in assistant. WebP
- Promo film Thirty seconds of Nymchat, 1920×1080. Every screen in it is the real app. MP4
- Everything else Themes, settings, polls, the flair shop, the About dialog — the knowledge base is illustrated throughout with real captures. Browse the knowledge base
The announcement
The launch announcement is published in full, in every language this site is published in: Nymchat launches a messenger that keeps working when the internet does not. It is free to quote.
Press contact
Interviews, review builds, fact checks and anything else: write to support@nymchat.app. Technical questions are usually answered faster by the knowledge base, which is written against the app's source rather than its marketing copy.
There is no review account to hand out, because there are no accounts. Open web.nymchat.app, pick a nym, and you are in — that is the whole sign-up.
Brand assets
- Wordmark The ASCII wordmark, for dark and light backgrounds — and as the plain text it actually is. Dark PNG Light PNG Plain text
- App icon The icon used on home screens and in the app stores. 1024 px 512 px 192 px
- Social card The 1200×630 card used for link previews, if you need to represent the site. 1200×630 PNG
- App screenshots Real captures of the running app, throughout the knowledge base — free to use in coverage of Nymchat. Browse the knowledge base
Nymchat trademarks
These are the marks owned by 21 Million LLC:
| Mark | What it names |
|---|---|
| Nymchat | The app, in all its forms. |
| Nymbot | The AI assistant built into the app. |
Nostr is an open protocol and nobody's trademark. Bitchat is a separate project with its own owners; Nymchat is compatible with it, not affiliated with it. Bitcoin and Lightning are likewise not ours, and the app store names belong to their respective companies. Nothing on this page grants or restricts anything about them.
Usage guidelines
General
- DO use the Nymchat trademarks to refer to Nymchat itself, or to products and services that genuinely work with it. A client that speaks the same protocol may say so.
- DO set the marks apart from the text around them — capitalize them, italicize them, quote them, or set them in a different face — so a reader can see where the name ends and your prose begins.
- DO use the assets from this page as they are, scaled proportionally.
- DON'T use a name, wordmark or icon confusingly similar to Nymchat's, for any purpose.
- DON'T use or register the Nymchat marks as, or as part of, social media account names, profiles, usernames or handles.
- DON'T combine the Nymchat assets, or any part of them, with another logo, company name or mark, or use them in any way that implies partnership with or endorsement by 21 Million LLC, without explicit written permission.
- DON'T describe your app or product as being "for Nymchat" when it is not built to work with Nymchat.
- DON'T put the Nymchat assets on merchandise — apparel, stickers, accessories, packaging — or otherwise monetize them, without explicit written permission.
- DON'T use the Nymchat marks in a domain name.
Referring to Nymchat
Spell and capitalize the marks exactly as they are written above. Use them as adjectives, not as nouns or verbs, and never in a way that suggests a generic or descriptive meaning.
- "Send encrypted messages with the Nymchat app."
- "Join a geohash channel using a Nymchat client."
- "Send a Nymchat."
- "Nymchat your friends."
Using the wordmark
Use the official wordmark from this page. Do not alter it in any way other than scaling it proportionally.
Clear space
Keep a clear space around the wordmark of at least half its height on every side. Nothing else — text, borders, other logos — belongs inside it.
Minimum size
The wordmark and the icon are built out of small glyphs, and below a certain size they stop being legible and start being noise. Never render the app icon smaller than 48 px, and never render the wordmark narrower than 240 px.
What not to do
Using the Nymchat brand in media
You may not use the Nymchat wordmark, icon or app imagery in a film, television program, book, play or other visual media without explicit written permission. To ask, write to support@nymchat.app and we will review the request.
Ordinary journalism, reviews and commentary about Nymchat do not need permission. Use the assets from this page, and do not imply that we endorsed what you wrote.
Colors
The palette has a dark and a light form. The values below are the dark ones; the light-mode equivalents are in the site's stylesheet.
Typography
Nymchat is a terminal by inheritance, and the type follows from that.
- Monospace — Courier New, Consolas, Monaco. The wordmark, headings, labels and anything that should read as a terminal.
- Sans-serif — the platform UI stack: SF Pro Display, Inter, Segoe UI, system-ui. Body copy and interface text.
The mobile apps bundle Roboto for the interface and Noto Sans as a broad fallback, so glyphs the primary face lacks still render rather than turning into empty boxes. Color emoji are left to the operating system's own font.
Using the Nymchat source code
Nymchat is licensed under the GNU Affero General Public License v3.0, and we are glad to see people build on it. The license sets the terms: among them, if you run a modified version as a network service, you must offer its source to the people using it.
The license covers the code. It does not grant any right to the trademarks. If you run your own build, make it clear that you own and operate your service and that it is not Nymchat, and do not use the Nymchat name, wordmark or icon as the identity of your service, product or application. You are welcome to state factually that it is based on Nymchat's source.
The app can prove which build it is running, and a byte-identical copy served from another domain says so plainly rather than passing itself off as the official app. See Verifying the build.
Legal
The Nymchat Brand Assets are owned by 21 Million LLC and may only be used as set out in these guidelines, or with explicit written permission.
You may not use, or otherwise claim rights in, any Nymchat Brand Asset, including as or as part of any trademark, service mark, company name, trade name, username, social media handle or domain registration. You may not claim rights in any intellectual property that is confusingly similar to the Nymchat Brand Assets, including as or as any part of a trademark or trade dress.
Do not use the Nymchat Brand Assets for anything misleading, defamatory, infringing or illegal, or anything otherwise inconsistent with the Terms of Service.
We may revoke permission to use the Nymchat Brand Assets at any time, and 21 Million LLC reserves the right to withhold approval of content it considers inconsistent with the Nymchat brand.
Questions about any of this, or requests for permission, go to support@nymchat.app.