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AAsyncbit
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Messaging for the people you actually know

One-to-one chats between mutual follows, group chats of up to 50, and voice messages — encrypted at rest.

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Asyncbit chat works on one rule: a one-to-one conversation needs a mutual follow. You follow them, they follow you, and then you can message each other. It means a stranger can't turn up in your inbox just because they found your name, and the same rule applies when you reply to a story or message a seller about a listing.

Group chats hold 3 to 50 people. You can add people you follow or people who follow you, and group admins manage who's in. Inside any chat you can send text, photos and voice messages, react with an emoji, reply to a specific message, edit what you sent, and unsend a message for everyone. On the web you can also forward messages. Typing indicators and read receipts show what's happening on the other end.

Be clear about the security model. Messages are encrypted at rest on Asyncbit's servers (Fernet: AES-128-CBC with HMAC-SHA256), which protects them in storage. They are not end-to-end encrypted: the server can decrypt them to deliver them, and moderators can review messages that are reported to them. Push notifications stay generic — “New message” — so the text of a message doesn't appear on your lock screen.

How messaging works on Asyncbit

  1. 1

    Follow each other

    A one-to-one chat opens once you and the other person follow each other. Story replies and “Message seller” use the same rule.

  2. 2

    Start a group

    A group holds 3 to 50 people, chosen from the people you follow and the people who follow you. Group admins manage the member list.

  3. 3

    Say it however suits

    Type, send a photo or record a voice message. Reply to a specific message to keep a busy chat readable, and react with an emoji instead of sending “ok”.

  4. 4

    Fix mistakes

    Edit a message after sending it, or unsend it for everyone in the chat.

  5. 5

    Keep the list under control

    Mute a chat for a set period or indefinitely, pin the ones you use most, and archive the ones you're done with.

What makes it worth using

Mutual follow for 1:1

No unsolicited direct messages from strangers.

Groups of up to 50

Enough for a class, a team or an extended family.

Encrypted at rest, not end-to-end

Stored encrypted on the server. We say plainly that it isn't end-to-end.

Calls from the chat

Start a voice or video call from any conversation.

Hide when you're online

Turn off show-online and others won't see your online status or last seen.

Messaging questions

Are Asyncbit messages end-to-end encrypted?
No, and we won't claim otherwise. Message content is encrypted at rest on the server, which protects it in storage, but the server can decrypt messages in order to deliver them. That is encryption at rest, not end-to-end encryption.
Can I message someone who doesn't follow me?
Not one-to-one: direct chats need a mutual follow. Group chats work differently, because members are added from the adder's own followers and following, so a group can include people who don't follow each other.
How many people can be in a group chat?
Between 3 and 50.
Can I take back a message I sent?
Yes. You can unsend a message for everyone in the chat, or edit it instead.

Messaging is free on Asyncbit

Along with everything else — feed, chat, calls, points and all. One free account, no tiers.

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Related features

Voice & video callsCalls that start from the chat and connect on mobile data — one-to-one or up to eight people.Safety & privacyBlock, mute and report, human moderation, encryption at rest, and control over what search engines see.ClubsPublic or invite-only spaces for one interest, with their own members and posts.MarketplaceA listing is a named post with a price and a condition. No fees, no commission, no payment layer.

Read more about messaging