* [habitctl](https://github.com/blinry/habitctl) - Minimalist command line tool you can use to track and examine your habits.
* [hledger](https://github.com/simonmichael/hledger) - A is fast, reliable, free, multicurrency double-entry accounting software to track money, investments, cryptocurrencies, time, or any other quantifiable commodity; uses a future-proof plain text file format.
* [ledger](https://github.com/ledger/ledger) - A powerful, double-entry accounting system from the command-line; it uses a simple yet powerful text syntax to specify the items to account.
* [moeda](https://github.com/thompsonemerson/moeda) - A foreign exchange rates and currency conversion using the command line.
* [paycon](https://github.com/arcorion/paycon) - Converts pay amounts between different time units.
* [speedread](https://github.com/pasky/speedread) - A simple terminal-based open source Spritz-alike filter that shows input text as a per-word RSVP (rapid serial visual presentation) aligned on optimal reading points.
* [speki](https://github.com/tbs1996/speki) - Manage flashcards in the terminal; similar to anki.