Best Calorie Deficit Diet App

250+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated October 2026

If you already know Formula - weight loss diet app, this is the deeper bench. 250+ calorie deficit diet app for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Calorie Deficit Diet App (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Formula - weight loss diet appFormula - weight loss diet appFree4.5★ (36K)NoYesNov 2026
2Calorie Deficit CalculatorCalorie Deficit CalculatorFree4.7★ (4K)NoYesNov 2026
3Lose It! – Calorie CounterLose It! – Calorie CounterFree4.8★ (783K)YesYesNov 2026
4Deficit: Calorie CounterDeficit: Calorie CounterFree5.0★ (23)NoNoOct 2026
5FlexiFact: Calorie Deficit AppFlexiFact: Calorie Deficit AppFree—YesYesMay 2026
6Deficit: AI Nutrition CoachDeficit: AI Nutrition CoachFree—NoYesOct 2026
7Ignyx - Calorie DeficitIgnyx - Calorie DeficitFree—NoNoAug 2026
8Kcalz: AI Calorie CounterKcalz: AI Calorie CounterFree—NoYesJul 2026

Top Picks for Calorie Deficit Diet App

4.5😐(36K ratings)
FreeIn-App Purchases
Formula - weight loss diet app screenshot 1
Formula - weight loss diet app screenshot 2
Formula - weight loss diet app screenshot 3
Formula - weight loss diet app screenshot 4
Formula - weight loss diet app screenshot 5

This app guides you through various specialized diets like Carnivore, Mediterranean, Anti-Inflammatory, and Cortisol Detox. It offers recipe libraries, meal tracking via voice or barcode, and expert support to help you achieve your health goals.

What We Love

  • 💰 Cost-effective
  • 🚀 Easy to use
  • 📊 Helpful tracking features
  • 🍔 Useful recipes and meal ideas
  • 👍 Customized plans
  • 🤖 Automated logging and calculations

Room to Improve

  • 🐛 Buggy and glitchy
  • 💰 Overpriced
  • 🤔 Lack of personalization
  • 🔍 Limited food database
  • 📉 Ineffective for weight loss
  • 🔒 Difficult to cancel subscription
Calorie Deficit Calculator#2

Calorie Deficit Calculator by Starry Web Ltd

Oatsy Macro Tracker Diet Coach
Strong Contender
💪 Health & Fitness
4.7😐(4K ratings)
FreeIn-App Purchases
Calorie Deficit Calculator screenshot 1
Calorie Deficit Calculator screenshot 2
Calorie Deficit Calculator screenshot 3
Calorie Deficit Calculator screenshot 4
Calorie Deficit Calculator screenshot 5
Calorie Deficit Calculator screenshot 6

This app helps you achieve your health and nutrition goals by tracking your food intake, water consumption, and exercise. It offers a comprehensive nutrition database, custom diet plans, and AI-powered food scanning to make logging easier.

What We Love

  • 🚀 Simple and easy to use
  • 👍 Helpful for tracking calories and macros
  • 🚀 Efficient barcode scanning
  • 👍 Integrates with Apple Health
  • 🚀 Comprehensive food database
  • 👍 Tracks water intake and exercise

Room to Improve

  • 🐛 Bugs and glitches with the app
  • 🔍 Limited food options, especially for cultural dishes
  • 🔍 Inaccurate macro calculations
  • 🔍 Difficult to add custom portions and recipes
  • 🔍 Overlapping UI elements on newer iPhones
  • 🔒 Too many features locked behind paywall
Lose It! – Calorie Counter#3

Lose It! – Calorie Counter by FitNow

Food Tracker for Weight Loss
Worth Considering
💪 Health & Fitness
4.8😊(783K ratings)
FreeAdsIn-App Purchases
#22in Health & Fitness
Lose It! – Calorie Counter screenshot 1
Lose It! – Calorie Counter screenshot 2
Lose It! – Calorie Counter screenshot 3
Lose It! – Calorie Counter screenshot 4
Lose It! – Calorie Counter screenshot 5
Lose It! – Calorie Counter screenshot 6

This app helps you achieve your weight loss goals by tracking your calorie intake, diet, and exercise. It offers personalized calorie budgets, nutrition insights, and features like AI voice and photo logging to simplify healthy eating habits.

What We Love

  • 👍 Easy to use
  • 🚀 Comprehensive food database
  • 💡 Helpful for weight loss
  • 🚀 Syncs with fitness trackers
  • 👍 Customizable goals and tracking
  • 👍 Motivating progress tracking

Room to Improve

  • 🐛 Inaccurate calorie/nutrition data
  • 💰 Paywall for basic features
  • 📢 Intrusive ads and upselling
  • 🐛 Buggy performance issues
  • 🔒 Privacy concerns with data sharing

More Calorie Deficit Diet App apps to explore

FAQ about Calorie Deficit Diet App

What is the best calorie deficit diet app for iPhone?
Formula - weight loss diet app tops our calorie deficit diet app ranking as of October 2026, with a 4.5-star average from 36K App Store ratings, and it's free to download.
Yes — 19 of the top calorie deficit diet app we rank are free to download, including Formula - weight loss diet app and Calorie Deficit Calculator.
Formula - weight loss diet app has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ calorie deficit diet app on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.