Many habit tools start with a plan: write down what you should do today, then use checks, progress bars, and streaks to judge whether your day was complete. It works, but unchecked items can slowly turn into pressure.
Sum of Days starts with what already happened
Read for one minute, do one push-up, write one sentence—all worth recording. Small amounts don't mean it doesn't matter. We don't set minimum standards for users, and we don't interpret blank dates as failure.
No incomplete tasks. Only footprints already left behind.
Recording itself is feedback
Every record instantly shows up in today's progress, item history, and annual footprints. Sum of Days doesn't need to warn or nag—it just faithfully saves the changes that already happened.
Small things count
Sum of Days supports three ways to record: tracking time, tracking count, or simply marking that something happened. Whichever you choose, one minute of reading, one push-up, one sentence written down—all of it counts as real progress worth saving. You don't need to hit some “respectable” amount before you're allowed to start. Once a tracking method has history, it locks in place. That's not a restriction—it's a promise: every entry you leave is taken seriously, and it won't be reinterpreted later just because the rules changed.