Comparison

The Difference vs PureGym US

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

The Difference

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.

Highlights
  • Daily weight change prediction
  • Personalized True Burn calculation
  • Extensive food database
  • Comprehensive activity logging
  • Simple and intuitive interface
  • Daily email and SMS results
Features
Read full description

The Difference App: Weight Management. Simplified. Tired of stepping on the scale and being surprised? The Difference is a calorie counter and weight loss tracker that gives you the power to know what you'll weigh tomorrow - before tomorrow arrives. By simply logging your meals in your food journal and exercise in your activity log, The Difference App instantly calculates your personalized calorie balance and predicts your weight change for the next day. No guesswork. No generic estimates. Just your data, working for you. Why The Difference App works when other apps don't: Most calorie apps tell you what you already did. The Difference tells you where you're headed. Key Features: • Predicted Weight Change: See exactly how today's choices will affect tomorrow's weight - updated in real time. • True Burn™ (Premium): Our proprietary AI learns your unique metabolism and calculates your actual daily calorie burn - not a one-size-fits-all estimate. • Activity Burn™ (Premium): Precision calorie calculations for your workouts, sports, household tasks, and more - using our proprietary formula. • AI Food Logging (Premium): Just snap a photo of your meal, use any image, or scan a barcode for effortless meal and nutrition tracking. Our AI recognizes and logs it instantly with remarkable precision - no searching, no typing. • 1.5 Million+ Food Records: Sourced from Nutritionix, the largest dietitian-verified nutrition database, plus unlimited custom entries so nothing goes untracked. • Full Macro Breakdown (Premium): Instantly see protein, carbs, fat, and more for everything you log - via food search, our new natural-language description tool, barcode scans, or AI Food Photos. • 1,000+ Activities: From gym sessions to everyday movement - every calorie counts. • Voice Logging: Just say it - log your weight, meals, or activities hands-free using your microphone. No typing required. • Detailed Daily Email & SMS Results (Premium): Your personalized daily summary delivered straight to your inbox and phone every morning. • Your All-In-One Diet App: Monitor your BMI and Body Fat Percentage, and stay on top of your healthy weight goals - all in one place. • Predictive, Intuitive, and Affordable: Built for real people. • Available in English and Spanish: Use the full app in whichever language you prefer. Flexible Plans for Every Goal: • Free: Access core features including generic formulas used for daily Predicted Weight Change. • Premium - $4.99/month or $24.99/year: Unlock True Burn™ and Activity Burn™, which improve your predictions, AI Food Photo Logging, Macro Tracking, and detailed Daily Email and SMS Results for the most accurate, most informed weight management experience possible. For less than a dollar a week, know exactly what you'll weigh tomorrow. Download The Difference App today and discover the power of knowing what you'll weigh tomorrow, today! Follow us @TheDiffApp on Social Media Read our Terms and Conditions: https://thedifferenceapp.com/terms-and-conditions/ Read our Privacy Policy: https://thedifferenceapp.com/privacy-policy/

About

PureGym US

Manage your fitness journey with this gym companion app. Easily check in, handle your membership, and stay updated on gym news. It helps you stay active by integrating with health data.

Highlights
  • Mobile check-in
  • Membership management
  • Guest invitations
  • Billing and balance updates
  • HealthKit integration
Features
Read full description

PureGym Feel Good Fitness for Every Body Welcome to the official PureGym US app, your all-in-one fitness companion with everything you need to crush your goals. Easily check in to the gym, manage your membership, get updates, and more. With the PureGym US app, you can stay on top of your fitness anytime, anywhere. Free with your PureGym membership! Top Features: Mobile Check-In. Scan the QR code on the home screen for easy, contactless entry. Secure Login Simple, secure access keeps your account and personal info safe. Bring a Guest Fitness is better with friends, so invite a guest to work out with you. Manage Your Membership Update billing, pay balances, and stay on top of your account. APPLE HEALTHKIT We also use HealthKit to allow users to share their activity and workout data with the app. This data is used to incentivise users to stay active.

Screenshots

The Difference4 screens
PureGym US4 screens

Verdict

The call

The clearest difference is review sentiment: The Difference at 99% against PureGym US's 10%. The Difference also leads on rating (4.8 vs 4.6). PureGym US's advantage is in-app purchases (none vs 2) and ratings volume (18K vs 142). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. The Difference sells 2 in-app purchases, starting at $4.99 per month. PureGym US asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

The Difference holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: PureGym US has 18K ratings behind it against 142, so its average is the more settled of the two. Written reviews point the same way: 99% of The Difference's written reviews are positive against 10% of PureGym US's.

UpkeepUpdate frequency

The Difference ships an update monthly, PureGym US every 5 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

Scorecard6 real differences · 4 level
The Difference versus PureGym US: the parameters behind the verdict, then further details
ParameterThe DifferencePureGym US
PriceFreeFree
Rating4.8 (142 ratings) — better4.6 (18K ratings)
Positive reviews99.0% of reviews — better10.0% of reviews
Number of ratings14218K — better
Update frequencyMonthly — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size40 MB115 MB
Age rating4+4+
DeveloperThe Difference App LLCBlink Holdings Inc.

Customer experience

The Difference

All ratings142 ratings
Positive96.5%
Neutral0.0%
Negative3.5%
Written reviews103 reviews
Positive99.0%
Neutral0.0%
Negative1.0%

PureGym US

All ratings17,667 ratings
Positive88.9%
Neutral1.7%
Negative9.4%
Written reviews339 reviews
Positive10.0%
Neutral6.5%
Negative83.5%

User reviews

The Difference

From 142 App Store ratings

What we love

  • 👍 Intuitive and easy-to-use interface
  • 💡 Innovative weight prediction feature
  • 📊 Accurate calorie tracking and database
  • 🎯 Effective for weight loss and management
  • ⚡ Simple and streamlined design

Room to improve

  • 🎨 Graphics and design feel cheap or outdated
  • ⏳ Time-consuming food input process
  • ❓ Inaccurate calorie calculations reported
  • 💳 Limited subscription benefits

PureGym US

From 18K App Store ratings

Room to improve

  • 🐛 Login issues
  • 🐛 Password reset not working
  • 🐛 Registration not working
  • 🐛 Membership information not transferring
  • 🐛 Incorrect gym location

Bugs and requests

The Difference

Reported bugs

2 issues
  • Inaccurate calorie and intake level calculations
  • Graphics quality issues

Requested features

4 requests
  • Improved graphics and modern design overhaul
  • Faster food logging process
  • Enhanced subscription tier benefits
  • Dark mode option

PureGym US

Reported bugs

5 issues
  • Login not working
  • Password reset not working
  • Registration not working
  • Incorrect gym location
  • Membership information not transferring

Requested features

5 requests
  • Ability to login with correct credentials
  • Proper password reset functionality
  • Seamless account registration
  • Accurate gym location selection
  • Membership information transfer

In-app purchases

2 purchases

The Difference

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$24.991 Year
None

PureGym US

No in-app purchases

Questions

Is The Difference free?
The Difference is free to download, with in-app purchases available.
Is PureGym US free?
PureGym US is free to download, with no in-app purchases.
Which has better reviews, The Difference or PureGym US?
The Difference is rated higher. The Difference averages 4.8 out of 5 from 142 ratings, while PureGym US averages 4.6 from 18K ratings.
Do The Difference or PureGym US have ads?
Neither The Difference nor PureGym US shows ads.
Which is updated more often, The Difference or PureGym US?
The Difference ships an update monthly, and PureGym US every 5 weeks. Most recently, The Difference was updated on October 25, 2026 and PureGym US on October 26, 2026.

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