Best Diet Assistant Apps

236+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our diet assistant list covers 236+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top Diet Assistant Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1KetoDiet: Fasting & Meal PlansKetoDiet: Fasting & Meal PlansFree4.4★ (2.4K)NoYesJul 2026
2hCG Diet AssistanthCG Diet Assistant$9.993.5★ (651)NoNoJul 2026
3Calorie Counter by fatsecretCalorie Counter by fatsecretFree4.8★ (15K)NoYesJul 2026
4Healthi: Weight Loss, Diet AppHealthi: Weight Loss, Diet AppFree4.8★ (90K)YesYesJul 2026
5Lose It! – Calorie CounterLose It! – Calorie CounterFree4.8★ (767K)YesYesJul 2026
6Lifesum: AI Calorie TrackerLifesum: AI Calorie TrackerFree4.6★ (150K)NoYesJul 2026
7Mediterranean Diet AssistantMediterranean Diet AssistantFree4.2★ (17)NoNoJul 2026
8My Challenge: Diet PlansMy Challenge: Diet PlansFree4.5★ (3.8K)NoYesJul 2026

Top Picks for Diet Assistant

KetoDiet: Fasting & Meal Plans#1

KetoDiet: Fasting & Meal Plans by Compumaster Ltd

Diet tracker with AI assistant
Editor's Choice
💪 Health & Fitness
4.4😊(2.4K ratings)
FreeIn-App Purchases
KetoDiet: Fasting & Meal Plans screenshot 1
KetoDiet: Fasting & Meal Plans screenshot 2
KetoDiet: Fasting & Meal Plans screenshot 3
KetoDiet: Fasting & Meal Plans screenshot 4
KetoDiet: Fasting & Meal Plans screenshot 5
KetoDiet: Fasting & Meal Plans screenshot 6

Combine ketogenic eating with strategic fasting for a healthier lifestyle. This app offers custom meal plans, advanced health tracking, thousands of recipes, and an AI assistant to guide your journey. Connect with a supportive community for motivation and advice.

What We Love

  • 🚀 Easy to use
  • 👍 Comprehensive keto guide
  • 🚀 Helpful tracking features
  • 👍 Delicious recipes

Room to Improve

  • 🐛 Inaccurate barcode scanning
  • 🔒 Locked recipes behind paywall
  • 🔒 Subscription model instead of one-time purchase
hCG Diet Assistant#2

hCG Diet Assistant by Nanobit d.o.o.

Strong Contender
💪 Health & Fitness
3.5😞(651 ratings)
$9.99
hCG Diet Assistant screenshot 1
hCG Diet Assistant screenshot 2
hCG Diet Assistant screenshot 3
hCG Diet Assistant screenshot 4
hCG Diet Assistant screenshot 5

Track your progress on the hCG diet with this comprehensive assistant. It offers daily guides for each stage, food and exercise logging, and detailed nutritional information from an extensive offline database. Monitor your weight, water intake, and body measurements with user-friendly graphs and reports.

What We Love

  • 🚀 Easy to use
  • 👍 Helpful for tracking progress
  • 🚀 Extensive food database
  • 👍 Keeps user on track

Room to Improve

  • 🐛 Crashes frequently
  • 🐛 Loses user data
  • 💰 Overpriced for features
Calorie Counter by fatsecret#3

Calorie Counter by fatsecret by fatsecret

Diet & Weight Loss Tracker
Worth Considering
💪 Health & Fitness
4.8😊(15K ratings)
FreeIn-App Purchases
Calorie Counter by fatsecret screenshot 1
Calorie Counter by fatsecret screenshot 2
Calorie Counter by fatsecret screenshot 3
Calorie Counter by fatsecret screenshot 4
Calorie Counter by fatsecret screenshot 5
Calorie Counter by fatsecret screenshot 6

Track your food, exercise, and weight with a comprehensive database and supportive community. Features include barcode scanning, image recognition, and integration with health apps. Premium options offer personalized meal plans and advanced tracking.

What We Love

  • 👍 Easy to use
  • 🚀 Comprehensive food database
  • 💪 Helpful for weight loss/gain
  • 📊 Detailed nutrition tracking

Room to Improve

  • 🐛 Inaccurate nutrition data for some items
  • 🔒 Privacy concerns with social features
  • 💰 Paid subscription required for advanced features

More Diet Assistant apps to explore

4
Healthi: Weight Loss, Diet App
Healthi: Weight Loss, Diet App
Healthi: Weight Loss, Diet App
Track Food GLP-1 Macro Calorie
Free

This app helps users achieve weight loss through personalized plans, easy food tracking, and a supportive community. It offers features like barcode scanning, recipe building, and integration with health devices. A premium option also combines medication support for enhanced results.

Personalized weight loss plansEasy food tracking (barcode scanner, search)Recipe builder
💪 Health & Fitness
(90K)
free with in-app purchases
5
Lose It! – Calorie Counter
Lose It! – Calorie Counter
Lose It! – Calorie Counter
Food Tracker for Weight Loss
Free

This app helps users achieve their weight loss goals by tracking calorie intake, nutrition, and exercise. It offers features like AI-powered meal logging, barcode scanning, and personalized diet plans to simplify the journey to a healthier lifestyle.

Calorie trackingWeight loss planningAI voice meal logging
💪 Health & Fitness
(767K)
free with in-app purchases
6
Lifesum: AI Calorie Tracker
Lifesum: AI Calorie Tracker
Lifesum: AI Calorie Tracker
Food Diary, Weight Loss Diet
Free

This app offers AI-powered meal tracking with multiple logging options, including photo, voice, text, and barcode scanning. It provides personalized nutrition plans, calorie and macro tracking, and integrates with fitness devices to support weight management and overall well-being.

AI-powered meal loggingPhoto, voice, text, and barcode trackingCalorie and macro counter
💪 Health & Fitness
(150K)
free with in-app purchases
7
Mediterranean Diet Assistant
Mediterranean Diet Assistant
Mediterranean Diet Assistant
Food guide, log & grocery list
Free

This app provides an icon-based visual guide to help you follow a Mediterranean diet. It includes detailed food information and allows you to log your meals, track your progress, and create shopping lists to ensure you meet daily dietary recommendations.

Icon-based visual food guideDetailed nutrition informationDaily food logging
💪 Health & Fitness
(17)
free
8
My Challenge: Diet Plans
My Challenge: Diet Plans
My Challenge: Diet Plans
by KETO DIETS UAB
Free

This app offers a personalized low-carb diet plan designed by nutritionists and behavioral scientists. It provides meal planning with over 10,000 recipes, macronutrient tracking, progress monitoring, and expert guidance to help you achieve weight loss and improve overall health.

Personalized low-carb diet plans10,000+ carb-free recipesMacronutrient tracking
💪 Health & Fitness
(3.8K)
free with in-app purchases
9
Prime: Intermittent Fasting
Prime: Intermittent Fasting
Prime: Intermittent Fasting
The fasting app for women
Free

This app offers a tailored intermittent fasting experience for women, featuring a fasting tracker, weight monitoring, and personalized guidance. It helps users achieve fitness goals, manage weight, and understand the health benefits of fasting with a focus on women's specific needs.

Fasting tracker (16:8 protocol)Weight trackerWater tracker with reminders
💪 Health & Fitness
(4.6K)
free with in-app purchases
10
Unimeal: Fasting and Diet
Unimeal: Fasting and Diet
Unimeal: Fasting and Diet
Simple Weight Loss & Tracker
Free

Achieve your weight loss goals with personalized meal plans, intermittent fasting schedules, and easy-to-use calorie and weight tracking. Utilize an AI scanner for effortless food logging and access workouts and hydration reminders to support your journey.

Intermittent fasting customizationPersonalized meal plansAI food and nutrition scanner
💪 Health & Fitness
(13K)
free with in-app purchases
11
Glow: Weight Loss AI for Women
Glow: Weight Loss AI for Women
Glow: Weight Loss AI for Women
AI Meal Plans & Workouts
Free

This app offers AI-powered personalized meal plans and custom workout routines to support your weight loss. It provides daily AI coaching via phone calls and text messages, along with weekly recipes and grocery lists for consistent motivation and accountability.

Personalized meal plansCustom workout routinesAI coach phone calls
💪 Health & Fitness
(5.3K)
free with in-app purchases
12
WeFast: Diet Plan for Women
WeFast: Diet Plan for Women
WeFast: Diet Plan for Women
Tracker & Community
Free

This app offers a supportive community and expert-backed guidance for women seeking sustainable lifestyle changes. It focuses on celebrating non-scale victories and building confidence through personalized support and motivation.

Expert nutrition guidanceSupportive communityFocus on non-scale victories
💪 Health & Fitness
(9K)
free with in-app purchases
13
Trifecta: Diet & Weight Loss
Trifecta: Diet & Weight Loss
Trifecta: Diet & Weight Loss
Calorie & Macro Tracker
Free

This app helps you achieve your health and fitness goals with personalized nutrition tracking, exercise guidance, and healthy recipes. It offers tools to calculate macros, log meals, scan barcodes, track water intake, and follow workout videos. Create a step-by-step program for sustainable habit building.

Macro calculator for personalized nutritionFood and nutrition loggingBarcode scanner for packaged foods
💪 Health & Fitness
(1.5K)
free with in-app purchases
14
Keto Cycle: Keto Diet App
Keto Cycle: Keto Diet App
Keto Cycle: Keto Diet App
Low Carb Meal Plans & Tracker
Free

This app offers a personalized ketogenic diet program designed by nutritionists and behavioral scientists. It provides customized meal plans, recipes, macronutrient tracking, progress monitoring, and guided workouts to help users achieve weight loss and improve overall health.

Personalized keto meal plans10,000+ easy recipesMacronutrient and calorie tracking
💪 Health & Fitness
(5.6K)
free with in-app purchases
15
Diet & Meal Planner by GetFit
Diet & Meal Planner by GetFit
Diet & Meal Planner by GetFit
Calorie counter, food tracker
Free

This app offers personalized meal plans and a calorie counter to help users lose weight naturally. It includes a food tracker, nutrition scanner, healthy recipes, and motivational tools to support a healthy lifestyle.

Personalized diet plansCalorie counterFood logging and diary
💪 Health & Fitness
(6.2K)
subscription
16
RP Diet Coach & Planner
RP Diet Coach & Planner
RP Diet Coach & Planner
Calories, Macros, Fat Loss
Free

This app helps you achieve your fitness goals by providing personalized calorie and macro tracking, meal timing guidance, and flexible scheduling. It adapts to your progress with weekly reviews and offers a vast food database with barcode and AI nutrition label scanning.

Personalized calories and macrosMeal timing guidanceRaw vs. cooked food tracking
💪 Health & Fitness
(12K)
subscription
17
Foodvisor - AI Calorie Counter
Foodvisor - AI Calorie Counter
Foodvisor - AI Calorie Counter
Diet Tracker for Weight Loss
Free

This app acts as your personal nutritionist, offering a personalized nutrition plan and helping you track your daily intake. It features an AI-powered camera for instant food recognition, tailored recipes, and progress monitoring to help you achieve your health and wellness goals.

AI Calorie Tracker with Instant Food Recognition CameraPersonalized Nutrition Plans by ExpertsTailored Recipes for Healthy Eating
💪 Health & Fitness
(16K)
freemium
18
DietGen
DietGen
DietGen
by Yibin Wang
Free
💪 Health & Fitness
(0)
19
EasyCal - diet assistant
EasyCal - diet assistant
EasyCal - diet assistant
Count calories Easier
Free

Effortlessly track your nutrition with AI-powered meal analysis and barcode scanning. Get instant nutritional values, calorie counts, and personalized health insights to achieve your wellness goals.

AI-powered meal analysisBarcode scanning for product dataCustomizable product database
💪 Health & Fitness
(2)
free with in-app purchases
20
DietAssistant for PKU
DietAssistant for PKU
DietAssistant for PKU
The All-in-One PKU App.
$5.49

This app helps individuals with PKU manage their diet by calculating phenylalanine and protein content of foods. It allows users to log daily intake, track progress with visual indicators, and store blood values. Users can also add custom foods, scan barcodes, and export logs for their doctor.

Phe/Protein calculatorDaily intake loggingProgress tracking bar
🏥 Medical
(2)
paid

FAQ about Diet Assistant

What are the best diet assistant apps for iPhone?
KetoDiet: Fasting & Meal Plans tops our diet assistant apps ranking as of June 2026, with a 4.4-star average from 2.4K App Store ratings, and it's free to download.
Yes — 18 of the top diet assistant apps we rank are free to download, including KetoDiet: Fasting & Meal Plans and Calorie Counter by fatsecret.
KetoDiet: Fasting & Meal Plans has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 236+ diet assistant apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
The KetoDiet app helps users combine the ketogenic diet with strategic fasting to achieve a healthier lifestyle. It provides tools for creating custom meal plans, tracking meals and macros, monitoring fasting periods, accessing a large recipe database, and receiving guidance from an AI assistant.
Key features include unlimited custom meal plans, intelligent fasting tracking, over 2,000 exclusive keto recipes with nutritional facts, an AI assistant for diet guidance, advanced health and macro tracking, barcode scanning for food, and integration with Apple Health.

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