Streaklite

A real habit tracker that lives on your device — schedules, streaks, a monthly heatmap and weekly progress.

Streaks are effective and have a known failure mode: the longer one gets, the more a single break feels like losing everything, and abandonment often follows the first miss rather than the tenth. The research on habit formation suggests occasional misses do not meaningfully affect the habit forming — but they do affect motivation when the counter resets.

A monthly heatmap is the better view for that reason. It shows density rather than an unbroken chain, so a month with 25 marked days reads as a good month, which it was — where a streak counter would report one.