Most habit apps count days. HabitSync lines your habits up against your mood, sleep and weight, so you find out which ones are earning their place.
Forty days in a row is a nice number and it feels good. It still does not tell you whether the thing you did forty times changed anything, which is the only question that decides if you keep doing it.
To know what a habit does for you, something has to compare the days you did it against the days you did not. Breaking a streak is not a failure here. It is the other half of the comparison.
Log twenty things for long enough and a few of them will line up by chance. HabitSync holds an insight back until there is enough behind it, and labels every one with how confident it is. A pattern is presented as a pattern, never as proof.
A streak tells you that you showed up. It says nothing about whether showing up did anything. HabitSync lines your habits up against your mood, sleep and weight, and tells you which ones moved something.
Every preset habit, plus three you name yourself. Yes/no, numeric goals and percentage targets all work on the free plan. Unlimited custom habits are part of the paid plan.
Not much, and that is deliberate. The number resets, and the pattern analysis carries on using every day you logged either way. A missed day is data too, and it is usually the days you skipped that tell you what the habit was doing for you.
It depends on how often the habit comes up and how noisy the thing you are measuring is. A few weeks is a fair expectation. Insights are held back until there is enough behind them, and each one is labelled with how confident it is, so you are never handed a coincidence dressed up as a finding.
Yes. The sample playground runs the real app on realistic data, no account needed, so you can see what a filled-in month looks like before deciding.