Support

Frequently asked questions

Why does sending cost anything if the app is free?

The app is free and we charge nothing. Each message is a blockchain transaction, so the network charges its normal fee ("gas"), paid from your wallet directly to the network. On most supported chains it's a fraction of a cent; on Ethereum mainnet it can be significantly more — the app shows the estimate before you sign.

Can I delete or edit a message?

No. Messages are written permanently to a public blockchain and cannot be altered by anyone. You can hide messages from your own view in the app.

Who can read my messages?

Anyone. All messages are public blockchain data. Don't send anything private.

How do I block or report someone?

Open the message → action menu → Block sender hides all their messages on your device; Report opens a pre-filled email to us with the transaction details. Manage blocks in Settings → Blocked Addresses.

A message I'm expecting isn't showing.

Pull down to refresh. Check you're connected with the address it was sent to, and that the sender used one of the eight supported chains. Older messages load via "Load older".

My wallet won't connect.

Make sure the wallet app is installed and up to date. EVM wallets connect through WalletConnect; Solana wallets through Mobile Wallet Adapter (Android) or the wallet's own link flow. Restarting both apps resolves most session issues.

Which chains are supported?

Base · Arbitrum · Polygon · Optimism · BNB Chain · Avalanche · Ethereum · Solana

Does KŌINIchat hold my keys or funds?

Never. It's a messaging client. Your wallet signs everything; we have no servers and no custody.