The Difference: Predict Weight

The Difference: Predict Weight

TheDiffApp: Weight Management

116 ratings
86 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • August 3, 2022
  • July 11, 2026

Features

The Difference: Predict Weight video #1 for iPhone
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About

This app helps you manage your weight by predicting your estimated weight change daily. It uses your food journal and activity log to provide personalized insights and a "True Burn" calculation for more accurate predictions. The longer you use it, the better it becomes at forecasting your weight.

Daily weight change prediction
Personalized True Burn calculation
Extensive food database
Comprehensive activity logging
Simple and intuitive interface
Daily email and SMS results
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What users say

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What's New in The Difference

2.0

July 11, 2026

New in this update: - More accurate True Burn™ & Activity Burn™ calculations - Snap a photo or use a barcode to log food with AI - Sign in with Apple or Google - Auto-sync your Withings smart scale - Log weight, meals & activities by voice - Daily results delivered by SMS & email - New in-app quiz game - Dark Mode has arrived Update now for a smarter, simpler way to track your progress.

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Subscription plans

Monthly Subscription

Premium Monthly Subscription

$4.991 Month
How to cancel The Difference subscription ⁉️

User reviews

The Difference Really Makes a Difference!

The app is super easy to use and is manageable for beginners like myself! All you need to do is put some physical information (for example, your height, weight age, current and target weight, e.t.c) and then it automatically predicts the calories one must consume in a day. You can add calories that come in and out while tracking your progress throughout the weeks in the separate page

Although there is a subscription access premium benefits, it allows you to use a system called smart scaling, where it can accurately track how much calories you gain or burn based off your and predicted your weight. Moreover, the integrated AI feature allows people to scan their food without any worries at all!

I’d personally say that it’s worth it to pay the full 25 dollar sum per year, it saves you money compared to the monthly plan while giving more access to your health! I love this app and I plan to use and share this with other people!
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Helpful & Accurate

As someone who has struggled with food and their weight for their entire life, The Difference App is excellent to use! It’s very easy to log your foods and exercise because they have such a large database (and helpful to remember what you ate for dinner yesterday).

My favorite part, however, is the predicted weight change. Most apps I’ve tried just tell you the calories you ate, but they don’t actually give you what your result will be. I found the weight change to be accurate after measuring in the morning. This app has really helped me become aware of my lifestyle (which needed a lot of fixing), and I highly recommend it to anyone else!
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Response from developer

Thank you so much for your thoughtful review. We're happy you are enjoying our app.

5/5

Outstanding tool for building daily wellness awareness. I love how the app has predictability features because I can easily track my progress and growth. Predictability analytics provide an exceptional feedback loop allowing the users to visualise long-term and short-term progress. The simplicity of adding foods and exercise makes the experience enjoyable. Overall, the different app transforms daily progress tracking from a reactive log into an encouraging forward looking roadmap.
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Response from developer

Thanks for your positive review. The predictive analytics - calculating what your weight change will be each day - is one of the core ways The Difference helps our users achieve their goals.

Great app! I love it

I've been using Difference for a while now, and it has become one of my favorite health and nutrition apps. As a swimmer and a regular gym member, tracking my calories, weight, and nutrition is very important to me.
This app makes everything simple and easy to follow. It helped me understand my daily calorie intake, stay consistent with my nutrition goals, and monitor my progress over time. Thanks to the insights and tracking features, I was able to gain weight in a healthy and controlled way.
The interface is clean, user-friendly, and motivating. I highly recommend Difference to anyone who wants to improve their health, build muscle, gain weight, or simply stay on top of their nutrition. Great app!
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Response from developer

You're right - the app was built for effective weight management, regardless of your goal. We love that you are using the app to gain weight and muscle mass. It's one of the reasons we call The Difference a weight-management app, not a weight-loss app. Good luck on your fitness journey.

Very useful

It very knowledgeable and it’s easy to track

User experience

🐞

Reported Bugs

2 issues

Inaccurate calorie and intake level calculations

Bug

Graphics quality issues

Bug

Requested Features

4 requests

Improved graphics and modern design overhaul

Feature

Faster food logging process

Feature

Enhanced subscription tier benefits

Feature

Dark mode option

Feature

FAQ

What does The Difference app do?

The Difference app helps you manage your weight by providing daily predictions of your estimated weight change. It achieves this by analyzing your food journal and activity log, allowing for personalized insights and a "True Burn" calculation.

How does the app predict weight change?

The app uses your personal information, food journal entries, and activity log to instantly calculate and update your daily "Estimated Weight Change" prediction. The accuracy of these predictions improves the longer you use the app.

What are the premium features and cost?

Premium unlocks a personalized, calibrated "True Burn" calculation for enhanced predictive ability, along with detailed email and summary SMS results. It costs $4.99 per month or $24.99 annually, billed to your iTunes account.

What kind of data can I log in the app?

The app features a vast food database with over 1 million records, allowing you to add custom entries. It also includes a comprehensive activity database with nearly 1,000 records covering sports, exercise, household tasks, and even obscure activities.

Is this app available on all devices?

Based on the mention of iTunes account billing, the app is likely available on iOS devices. Specific compatibility details would typically be found on the app's store page.