What your chat history is telling you.
Export a chat from one of the messengers, hand the file to Spilk, and you get charts back. Who texts first, who replies fastest, who leaves whom on read for half a day, who drops out for a week and comes back like nothing happened. Useful when you want a clearer picture of a relationship without re-reading every message.
The whole thing runs on your phone. The export file stays there too. No upload, no account, nobody else reads it.
