No Sugar Challenge records a daily status and displays your calendar, streaks and statistics. It does not automatically measure food sugar or blood glucose.
Create a plan and check in
- Choose a duration and start date: for example 7, 30, 100 or 365 days, or a custom plan.
- Enter an estimated average daily sugar amount. This sets the calculation basis for Sugar Avoided.
- On Home, select Sugar Free or Sweet Day for today.
- Optionally add categories such as drinks or dessert, and a note, for a Sweet Day.
The status follows your own check-in criteria. 'Sugar Free' is not a measured finding that you consumed zero grams of sugar.

Read the calendar and correct a record
Tap a calendar date to view its status, plan and note. The current app allows status changes for today and editable dates within the past three days; older entries can be viewed. Future dates are not recorded as completed days.
If you tapped the wrong recent status, correct it in the calendar. Streaks and totals change with the saved record. The calendar includes earlier plans, and a streak can continue across a plan boundary.


Interpret streaks and Sugar Avoided
A missing date or Sweet Day breaks consecutive sugar-free days. If today has no check-in yet, the displayed current streak may still count through yesterday.
For example, 50g average daily sugar × 4 Sugar Free days = 200g estimated Sugar Avoided. Change one of those days to Sweet Day and the estimate becomes 150g. This is not measured intake, a blood-glucose reading or a prediction of weight change.
Category statistics count your selected tags. A day can have multiple tags, so their total is not necessarily the number of Sweet Days.

Reminders, storage and privacy
Set a check-in reminder time in Settings and allow device notifications. Records are stored on the device without an account. Offline recordkeeping is separate from advertising network activity: the app contains ads, so it should not be described as completely offline or as sending no data externally. See the privacy policy. Do not rely on automatic restoration after deleting the app or changing devices.
Keep the goal separate from health claims
WHO healthy-diet guidance discusses limiting free sugars within a balanced diet that includes fruit. The app's duration choices are logging plans; they do not promise detoxification, a changed metabolism or stable blood glucose.
See the official App Store listing for public features and updates, or contact support for recordkeeping questions.