Best One Day Diet Apps

193+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

The best one day diet apps on iPhone average 4.6★ across 193+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for One Day Diet

One Day Diet#1

One Day Diet by Michael Collins

Editor's Choice
💪 Health & Fitness
5.0(2 ratings)
Free
One Day Diet screenshot 1
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This application helps you gamify healthy eating by tracking your daily food intake and setting a personal target for nutritious meals. By monitoring your macronutrient and hydration levels, you can develop healthier habits and achieve weight loss through a balanced diet and regular exercise.

Lose Weight at Home in 30 Days#2

Lose Weight at Home in 30 Days by ABISHKKING LIMITED.

Home Workout for Weight Loss
Strong Contender
💪 Health & Fitness
4.8😊(21K ratings)
FreeAdsIn-App Purchases
Lose Weight at Home in 30 Days screenshot 1
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Lose Weight at Home in 30 Days screenshot 4
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An app designed to help users lose weight at home in 30 days, offering systematic workouts, diet plans, and progress tracking. Features include various workout routines, calorie tracking, and video guidance with no equipment required. Subscription-based with pricing details provided, offering a comprehensive solution for weight loss and fitness goals.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Personalized workouts and meal plans
  • 💪 Effective for weight loss and building strength
  • 🌟 Motivating and helpful for beginners

Room to Improve

  • 💰 Premium features locked behind paywall
  • 🔍 Inaccurate calorie tracking
  • 🤔 Questionable diet recommendations
17 Day Diet Meal Plan#3

17 Day Diet Meal Plan by Realized

Easy Weight Loss Recipes
Worth Considering
🍔 Food & Drink
2.9(18 ratings)
FreeIn-App Purchases
17 Day Diet Meal Plan screenshot 1
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This application provides a personalized meal planning experience, offering balanced and curated recipes, shopping lists, and easy tracking to help users succeed on a specific diet. With a free trial and affordable subscription options, users can access a new meal plan every week, getting delicious and healthy food ideas to achieve their weight loss goals.

More One Day Diet apps to explore

4
Keto Diet App - Carb Tracker
Keto Diet App - Carb Tracker
Keto Diet App - Carb Tracker
Weight Loss, Meal Plan, Recipe
Free

Experience personalized weight loss support with a comprehensive keto diet app. Track macros effortlessly, access hundreds of recipes, and get expert guidance in reaching your goals quickly and efficiently. Start your journey towards better health today!

💪 Health & Fitness
(81K)
5
Carbon - Macro Coach & Tracker
Carbon - Macro Coach & Tracker
Carbon - Macro Coach & Tracker
Calories, Nutrition, & Diet
Free

Get personalized nutrition guidance tailored to your goals with an intuitive app that tracks your daily food intake, suggests balanced meals, and helps you reach your macros efficiently. Start optimizing your diet today for a healthier lifestyle.

💪 Health & Fitness
(7.6K)
6
FastEasy: Intermittent Fasting
FastEasy: Intermittent Fasting
FastEasy: Intermittent Fasting
Simple Weight Loss & Tracker
Free

Lose weight effortlessly with our intuitive intermittent fasting app. Track your fasting schedule, monitor progress, and achieve your weight loss goals with ease. Try it now for a healthier you!

💪 Health & Fitness
(79K)
7
no.Diet
no.Diet
no.Diet
Mediterranean Weight Loss Diet
Free

The application is a personalized weight loss and wellness app that combines the principles of the Mediterranean diet with a tailored nutrition program, guided exercises, and various tracking features to help users achieve their health and body goals. It offers a subscription-based model with options for both monthly and longer-term plans.

💪 Health & Fitness
(2.7K)
8
WeightLoss Workout-HomeFitness
WeightLoss Workout-HomeFitness
WeightLoss Workout-HomeFitness
30 day workout challenge
Free

A workout application offering HD video tutorials for weight loss exercises at home, including various workout categories. Features audio and visual instructions, optimized for women's home workouts. Designed for iOS devices to help users achieve weight loss goals and burn calories.

💪 Health & Fitness
(2.7K)
9
Lose It! – Calorie Counter
Lose It! – Calorie Counter
Lose It! – Calorie Counter
Food Tracker for Weight Loss
Free

This application is a powerful tool for weight loss, offering calorie counting, nutrition tracking, and intermittent fasting features to help users reach their goals. With a comprehensive food library, barcode scanner, and other useful tools, it's a convenient way to achieve a healthier lifestyle and track progress. Start your weight loss journey now!

💪 Health & Fitness
(757K)
10
eMeals - Healthy Meal Plans
eMeals - Healthy Meal Plans
eMeals - Healthy Meal Plans
Meal Planner & Grocery List
Free

Plan your meals effortlessly with personalized, healthy meal plans tailored to your dietary preferences, complete with recipes and grocery lists. Simplify your meal preparation and eating habits with eMeals - try it now!

🍔 Food & Drink
(4)
11
17 Day Diet Complete Recipes
17 Day Diet Complete Recipes
17 Day Diet Complete Recipes
Low Sugar & Carb Meal Plan
Free

Discover a comprehensive collection of low sugar, low calorie recipes for the 17 Day Diet to help you achieve your health goals. Find a variety of meal options to support your weight loss journey. Start cooking healthier meals today!

💪 Health & Fitness
(571)
12
Intermittent Fasting Tracker -
Intermittent Fasting Tracker -
Intermittent Fasting Tracker -
Fasting App: Lose Weight Fast
Free

An intuitive fasting app that guides you through various fasting plans to help you lose weight effectively and feel more active. With features like timers, statistics tracking, and personalized insights, it supports both beginners and experienced users on their fasting journey. Subscribe to access all features for personalized fasting experience.

💪 Health & Fitness
(28K)
13
Carnimeat
Carnimeat
Carnimeat
Carnivore Diet Meal Plan
Free

"Carnimeat is a revolutionary weight-loss app that helps you track your food intake and create personalized meal plans based on your dietary preferences and health goals. Start your journey towards a healthier lifestyle today."

💪 Health & Fitness
(2.6K)
14
FoodHealth: GLP-1 Food Coach
FoodHealth: GLP-1 Food Coach
FoodHealth: GLP-1 Food Coach
Point. Scan. Know What to Eat.
Free
💪 Health & Fitness
(17)
15
Wondr Health
Wondr Health
Wondr Health
Healthy behavior change skills
Free

Experience a revolutionary approach to health and weight loss with our skills-based digital program. Access expert guidance, track progress, set goals, and enjoy personalized support all in one app. Join now to start your journey towards a healthier, stronger you.

💪 Health & Fitness
(6.6K)
16
GLP Diet: GLP-1 Weight Loss
GLP Diet: GLP-1 Weight Loss
GLP Diet: GLP-1 Weight Loss
For Ozempic, Wegovy, Mounjaro
Free
💪 Health & Fitness
(517)
17
8fit Workouts & Meal Planner
8fit Workouts & Meal Planner
8fit Workouts & Meal Planner
Fitness & nutrition made easy
Free

"Revolutionize your fitness routine with personalized workout plans and meal recommendations based on your goals and preferences. Get started on your journey to a healthier lifestyle today!"

💪 Health & Fitness
(82K)
18
Welmi - Calorie Counter & Diet
Welmi - Calorie Counter & Diet
Welmi - Calorie Counter & Diet
Weight Loss Food Tracker
Free

Introducing a comprehensive weight loss app that goes beyond just calorie counting. FitMe offers a personalized nutrition plan, food scanning, macro-nutrient tracking, and eating reminders to help you achieve your dream shape and maintain healthy eating habits. Snap your meals, and the app will guide you towards your fitness goals effortlessly.

💪 Health & Fitness
(13K)
19
Fasting + Intermittent Fasting
Fasting + Intermittent Fasting
Fasting + Intermittent Fasting
Fasting Tracker - Lose Weight
Free

Track your intermittent fasting effortlessly with a user-friendly app designed to help you lose weight and improve overall health. Personalized meal plans, expert coaching, and a variety of fasting plans make it easy to achieve your goals. Download now for free and start your journey to a healthier lifestyle.

💪 Health & Fitness
(6.6K)
20
21 Day Fix® Tracker – Official
21 Day Fix® Tracker – Official
21 Day Fix® Tracker – Official
by Beachbody, LLC
Free

Track your nutrition, workouts, and progress effortlessly with this all-in-one app. Stay on top of your daily meals, water intake, workouts, and body measurements with ease. Take charge of your fitness journey today!

💪 Health & Fitness
(2.5K)