Follow the rotation and plan meals with recipes on your phone. Record your weight and measurements in the app and follow changes in graphs. If you have already started the diet, use your actual start date.
A calendar built around your start date
Enter your actual start date, even if you are already partway through the diet. The calendar shows the sequence of diet days, while the menus and recipes help you plan meals.
Choose whether to include water days in the settings. Match this setting to the diet plan you follow.
For the rules and the four-day rotation, see the complete guide.
Recipe ideas for the day
Choose a recipe and check its ingredients and servings before cooking. Adapt substitutions to the version you follow. The app is an organisational aid; it does not decide whether the diet suits your health or guarantee weight loss.
Free and Premium versions
| Feature | Free | PremiumPaid |
|---|---|---|
| 90-day calendar and start-date selection | Included | Included |
| Daily menu and core recipes | Included | Included |
| Weight tracking | Included | Included |
| Daily reminders | Included | Included |
| Additional recipes | Not included | Included |
| Advanced progress statistics | Not included | Included |
| Hip measurements in cm or inches | Not included | Included |
| Ad-free use | Not included | Included |
If paid access is not working, tell support which store and device you use and what appears on screen. Do not send passwords or full payment-card details.
Support and privacy
Contact info@90daydiet.org with a description of the issue and the phone you use. Read the store's data-safety information and the privacy policy for the relevant services.
The app can help you keep track of a plan. For medical conditions, medication or individual nutritional needs, seek professional advice and review the limitations.