Quickly convert between kilojoules and kilocalories with this straightforward utility. It displays the conversion formula clearly and allows you to share your calculations. Designed for ease of use on Apple devices.




221+ iOS apps curated and reviewed
Out of 221+ kjoule kcal apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $0.99 | 3.0★ (2) | No | No | Jun 2026 | |
| 2 | Free | 4.4★ (1.5K) | Yes | No | Jul 2026 | |
| 3 | $1.99 | 4.8★ (20) | No | No | Jul 2026 | |
| 4 | $2.99 | — | No | No | Jul 2026 | |
| 5 | Free | 4.7★ (40) | No | Yes | Jul 2026 | |
| 6 | Free | 4.0★ (21) | Yes | Yes | May 2026 | |
| 7 | Free | 4.6★ (16K) | No | Yes | Jul 2026 | |
| 8 | Free | — | No | No | May 2026 |




Quickly convert between kilojoules and kilocalories with this straightforward utility. It displays the conversion formula clearly and allows you to share your calculations. Designed for ease of use on Apple devices.






Track your food intake, exercise, and weight loss progress with this calorie counter. It offers animated statistics, custom food creation, and privacy-focused local data saving. Achieve your fitness goals, whether it's weight loss, muscle gain, or overall health improvement.



Easily convert energy values between kilocalories and kilojoules. This utility app offers a simple interface for quick conversions, allowing you to customize the number of decimal places displayed.


Easily convert between Calories and kilojoules with this utility. Supports fractional conversions and customizable rounding for both decimal and fractional results. Share your conversions via email and access your history.


This app uses AI to create personalized nutrition plans based on your lifestyle and goals. Easily track your meals by taking photos for instant nutrient analysis and monitor your progress with a visual dashboard. Smart reminders help you stay hydrated throughout the day.


This app helps you track calories burned during various activities using your Apple Watch. View detailed summaries per minute and contribute your workout results to the Health app and Apple Watch activity rings.


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.




Easily track your calories, macros, and nutrition with AI-powered insights. Scan meals for instant breakdowns, get personalized suggestions, and monitor your progress towards health goals like weight loss or muscle gain.


This AI-powered app simplifies calorie and nutrition tracking. Easily log meals by taking a photo or manually entering them, and monitor your exercise to understand your daily intake and output for achieving health goals.


This app helps you track your calorie intake and meals to achieve weight loss, muscle gain, or maintenance goals. It offers an AI-powered calorie counter, a vast food database, meal planning, and intermittent fasting support.


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Stay informed with breaking U.S. and world news, plus local news, weather, and sports from numerous cities. Access live streaming news channels, full episodes of popular shows, and personalized alerts for stories that matter to you.


This app offers a streamlined way to log calorie intake and expenditure for experienced users. It focuses on direct input of calorie data and provides tools for tracking weight changes and daily calorie balance.


This app offers personalized, macro-precise meal planning to help users achieve their fitness and nutrition goals. Customize plans, track macros, and swap meals for a flexible and user-friendly experience.


This app guides users through personalized intermittent fasting and nutrition plans to achieve sustainable weight loss. It offers features like a food scanner, progress tracking, and a community for support, helping users burn fat and improve overall health.


This app helps users track their daily food intake, calories, and macronutrients with a vast food database and convenient scanning features. It offers customizable macro goals, progress monitoring through graphs, and social sharing options. An optional AI coach assists with personalized diet adjustments.


This app helps you achieve your body goals by scientifically tracking your calorie deficit. It uses AI for food recognition and automatic activity tracking to make weight management effortless. Visualize your progress and build healthy habits with smart reminders.


Effortlessly track your food intake by simply snapping a photo of your meal. Get instant calorie and macro breakdowns, personalized meal plans, and AI-driven dietary advice to help you achieve your health and weight goals.


Track your food intake and nutrition with a comprehensive calorie counter. Log meals quickly using a barcode scanner, photo analysis, or search. Monitor macros, vitamins, minerals, and more with detailed insights and progress charts.