Identify the spending screen
The supplied guides discuss Bits alongside Essence and rebirth. When you earn Bits, first check the in-game menu that accepts them and read what the purchase changes.
Save for a defined benefit
Do not spend a permanent-looking resource on a guess. Compare the next available Bit purchase with the benefit it gives to your next run.
Keep the source current
The supplied captures do not establish a complete, update-proof Bits table. Use the current game UI for exact earning methods and values.