Phone TCP Server

Phone TCP Server turns your smartphone into a TCP server. PC programs, Wi-Fi MCUs and other phones can connect, and every connected device gets its own chat where you send and receive text like messages. When you start the server, the address to connect to (IP:port) is shown on screen.

Main features

• Start and stop a TCP server on a port you choose, with the connect address shown

• Many devices at once: a list of connected devices and one chat per device

• Send and receive text in each chat; what arrives is recorded per chat

• Put connected devices in the same chat and relay their data to each other (Add members)

• Simple mode: connect and exchange text

• Expert mode: HEX and Base64 input, command aliases, macros, a packet builder and a system log

• A notification keeps the server running with the screen off or another app in front ("Stop all" ends it)

• Export / restore a backup file of chats and settings, Korean and English

• No account and no server of ours: everything stays on the phone

Good for

• Trying a TCP client or MCU firmware you are developing, straight from your phone

• Exchanging data with a device on the same Wi-Fi like text messages

Please note

• Plain TCP is not encrypted by itself. Do not send sensitive data.

• Android power saving or a network change can cut a connection.

• This app is not an industrial safety control system or certified equipment; have separate safety measures and checks before connecting to real equipment.

• The app shows ads. It never shows an interstitial ad while a connection or the server is working.

• For per-device terminals and a combined log, use "TCP Test Server".