Thank you for Chatbox - I've been looking for something like that that's cross-platform including mobile. (I've wanted to play around with the API, but also find ChatGPT useful, don't want to pay for both.)
1. Search history by conversation name, instead of by content.
2. Organizing chats into folders.
3. Ability to customize model settings for individual "Copilots", as they're called (basically a pre-set conversation name and system prompt). Instead the settings you set are global.
There's also https://github.com/lobehub/lobe-chat which is pretty cool, but seems to be more complex.