Open channel that anyone can discover and join. Messages are visible to all participants.
For organizing your channels locally.
Channel appears in Explore
Only you can send messages
Pombo offers three channel types, each with different privacy and access control mechanisms. All channels use verified ID and decentralized infrastructure.
Open channels that anyone can discover and join. Perfect for communities, announcements, and public discussions. Everything is visible to all participants.
Protected channels where messages are encrypted with a shared password. Only users who know the password can decrypt and read messages. Easy to share access with friends or team members.
Blockchain-verified membership using smart contracts. Access is controlled on-chain, and each member must be explicitly authorized by their wallet address. Ideal for high-security channels requiring cryptographic proof of membership.
Pombo offers two storage options for message history. Both flow through the Streamr Network's encrypted P2P transport — only the storage destination differs.
Official storage cluster operated by Streamr. Messages are stored with a configurable Time-To-Live (TTL) from 1 to 365 days. After expiration, messages are automatically purged.
Bring your own Streamr-compatible storage node or cluster. Provide the node's on-chain address and Pombo will register your stream against it. TTL behavior depends on your node's configuration. Use this to self-host history, route to a private cluster, or experiment with third-party storage providers.
Stored locally, only visible to you
One-time setup — Creating your DM inbox requires a small gas fee. Once created, there are no additional costs.
Anyone with your Pombo/Ethereum address can send you direct messages. You can also message any address that has a DM inbox.
Ask the channel creator for the channel ID
This name is stored locally only
Helps organize your channels locally
Share this link with anyone you want to invite to the channel.
Push notifications use a "Blind Relay" — the server that wakes your device cannot determine recipients. It only sees anonymous tags with no link to identities or channels.
Notification tags use a deliberately small hash (1 byte = 256 possible values) to ensure K-anonymity even with few users. With 1,000 users, each tag matches ~4 people. As the user base grows, the tag size scales up. You're always hidden in a crowd.
Each wake signal requires Proof-of-Work (~200ms per recipient). Negligible for normal use, but makes spam prohibitive — a spammer would need hours of computation to flood the network.
The relay is fully open-source. Anyone can run their own instance for additional trust guarantees.
This will permanently delete the channel from Streamr. All participants will lose access.
This action cannot be undone.
Are you sure you want to remove this contact?
Drag to choose the framing and use zoom to control how tightly the image is cropped. Upload stays square at 512×512.
filename.jpg
2.5 MB
Please wait
This may take a few seconds...
Enter value
Works on any device
Preparing installation…
Safari on iPhone / iPad
Desktop Browser
You're using the installed app
Pombo is already installed on this device