The journey
Most trackers reset when you change your mind. Undiet does the opposite: every program you mark becomes a period on one timeline, and your weight curve runs over all of them. Switching is not failing. It is the data.
When you mark a program from the catalog, a period starts. When you mark another, or none, the first one ends and stays. Each period keeps its start, its end, its own weigh-ins and its own change, so a 6 week fasting stretch and a 3 month GLP-1 stretch can sit next to each other on the same axis.
The months between programs are the part most apps throw away. Undiet keeps them as a period of their own, because what happens after you stop is often the most useful thing the graph can show you.
Scrub along the curve and the readout follows: the weigh-in, the date, the program and the day you were on. Period labels light up as you pass through them. On the free plan the graph shows the last 90 days; Undiet Plus opens it up to the whole journey and adds the stats for every period.
Every check-in carries how the day felt on a ten step comb, and that feeling is drawn next to the weight. A flat week with light days reads very differently from a flat week with heavy ones.
The journey graph
An example journey across three periods: no diet, then GLP-1, then fasting 16:8. In the app the graph is your own.
On iPhone and Android
Free on iPhone and Android. Mark what you are on and the first period begins.
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