Most expense splitters make every friend download a separate app. Lightsplit lives inside Telegram and LINE, where your group already chats. Add the bot, log expenses with quick commands, and see who owes whom in real time. Multi-currency with auto-conversion, smart settlement that minimizes payments, and a built-in Mini App for richer flows when you need them. No app to install. No sign-ups for friends. Just split where you already chat.