BMI Calculator: Weight Plan
Body Fat, BMR & TDEE Tracker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your BMI in 10 seconds – no sign-up.
Then get a daily calorie budget from your real TDEE, and a 12-week plan to move your number.
Get your BMI in seconds.
Type in your height and weight. You get your BMI, your healthy range, a body fat estimate (US Navy method), plus BMR and TDEE.
Most BMI apps stop there. If your number isn't where you want it, this one keeps going: it turns your result into an actual plan.
YOUR PERSONAL 12-WEEK WEIGHT PLAN
• A daily calorie budget computed from your own TDEE – not a generic 1,200-calorie template
• A projected weight curve: see the date you reach your goal at a safe 0.5–1 lb per week
• 84 tiny daily lessons – why crash diets bounce back, what to do after a bad weekend, how to actually keep weight off. Under 3 minutes each
• Daily habit check-ins – one reminder a day, not twelve, and you can shut it off
• A weight tracker with a smoothed trend line, so one salty dinner never ruins your week
• Widgets for your Home Screen and Lock Screen
• After week 12: the Maintenance Year – one short lesson a month for the part where the weight stays off
CALCULATORS INCLUDED
• BMI with WHO categories and healthy range
• BMR (Mifflin-St Jeor) and TDEE with five activity levels
• Body fat % (US Navy method) and ideal weight range
• Metric and imperial – kg, lbs, cm, ft/in
PRIVATE BY DESIGN
Your height, weight, BMI and answers are calculated and stored on your iPhone, and never leave it. There is no account and no cloud sync. The app sends anonymous usage data – which screens you open, and whether a purchase succeeded – so we can improve it; you can switch that off in Settings. Optional Apple Health sync (read weight from your smart scale, write BMI back) – your Health data never leaves your device.
WEIGHT PLAN PRO
The calculators are always available, full stop. Pro is the plan on top: the 12-week program, lessons, goal-date projection, habit check-ins, and the widget.
BMI is a screening measure and this app does not provide medical advice; consult a healthcare professional before starting any weight-loss program.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://resonancelogic.com/bmiplan/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor improvements
The developer, Resonance Logic, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Resonance Logic, LLC
- Size
- 65 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Weight Plan Pro Lifetime $19.99
- Weight Plan Pro Lifetime $29.99
- Weight Plan Pro Lifetime $49.99
- Weight Plan Pro Monthly $9.99
- Copyright
- © 2026 Resonance Logic, LLC