Comparison

Slimming World vs MealMerlin

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

Head to head
About

Slimming World

This app supports healthy eating and weight loss through a flexible food plan, a barcode scanner, and thousands of recipes. It offers expert tools, motivational content, and workout videos to help users achieve lasting results.

Highlights
  • Flexible healthy eating plan
  • Barcode scanner for food choices
  • Thousands of healthy recipes
  • Expert weight loss tools and articles
  • Member-exclusive podcast and success stories
  • Workout videos and activity tracking
  • Online community and live events
Features
Read full description

Eat real food, get real support, see real results that last... download the Slimming World weight loss app today. Feel good on the inside and out from day one, and reach the weight or size you want to be. Download our top-rated members-only app and enjoy… * Slimming World’s healthy eating plan, Food Optimising – flexible to fit around you and your lifestyle (even your social life), so you can enjoy a night out, or in! You’ll also discover an easy way to plan your meals and snacks and add recipes directly to your Planner. * The Slimming World barcode scanner – for on-the-go access to help you make great food choices in seconds. * 1000s of official healthy Slimming World recipes, with a variety of cuisines to suit every dietary preference, budget and cookery confidence level. * Expert tools, strategies and articles – all based on Slimming World’s deep understanding of the science and psychology of weight loss – to help you get to know yourself as a slimmer. * Our exclusive members-only podcast, plus inspiration and real-life success stories from members just like you. * Workout videos for all levels (covering dance, cardio, building strength, and balance and flexibility), specially created by Slimming World to support you in becoming more active at your own pace, when the time’s right for you. Plus, you can now track your activity progress in our app by connecting to Apple Health, Google Fit and other fitness apps. Online-only members… In addition to all the features above, our digital service includes our friendly, inspiring and supportive Community, where you can meet and chat to people just like you and work towards your weight loss goals together. You’ll receive personalised support at the point of weigh-in, based on your progress, to help you through challenging times. Plus, you’ll enjoy unlimited access to our weekly schedule of inspiring live events, designed to boost your weight loss know-how and max your motivation. Joining Slimming World Online using our mobile app If you’ve joined Slimming World Online using in-app purchasing in our iOS app, your subscription will be charge to your App Store account. Once you’ve completed your purchase, you’ll be able to manage your subscription through the App store. Your plan auto-renews monthly unless you cancel your membership. Your App Store account will be charged at least 24 hours prior to the end of the current period. If you joined or rejoined Slimming World Online using iOS app, your subscription cannot be refunded by Slimming World. You can request a refund from Apple by using their report a problem website. If you’re cancelling within the first 14 days, you should choose the “Right of withdrawal” option. All refunds are subject to Apple’s terms & conditions.   Slimming World’s Terms of use https://www.slimmingworld.co.uk/terms-of-use Slimming World’s Privacy promise https://www.slimmingworld.co.uk/privacy-policy The science behind Slimming World https://www.slimmingworld.co.uk/the-science-behind-slimming-world

About

MealMerlin

Features
Read full description

MealMerlin is an AI-powered nutrition coach and calorie tracker designed to make food logging fast, visual, and practical. SNAP AND LOG MEALS Take a photo of your meal and review estimated calories, protein, carbohydrates, and fat before adding it to your daily log. TRACK FOOD YOUR WAY Scan packaged-food barcodes Search for foods and create custom entries Log meals using your voice Save meals for quicker logging later Track water and daily nutrition targets UNDERSTAND YOUR PATTERNS MealMerlin turns your food history into useful insights. Review daily progress, weight trends, achievements, and a weekly nutrition debrief built from your logged meals. PERSONALISED GUIDANCE Set goals, activity level, dietary preferences, calorie targets, and macro targets. MealMerlin uses this context to provide practical AI-generated suggestions and coaching. OPTIONAL APPLE HEALTH SYNC With your permission, MealMerlin can read selected activity and body metrics and write logged nutrition and water data to Apple Health. MEALMERLIN PRO Upgrade to MealMerlin Pro for features including voice logging, AI meal suggestions, progress photos, weekly analysis, smart reminders, and the AI nutrition coach. MealMerlin provides educational nutrition information and is not a substitute for professional medical advice, diagnosis, or treatment. Nutrition estimates and AI-generated guidance may not always be accurate. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple ID subscription settings. Privacy Policy: https://api-production-4642.up.railway.app/legal/privacy Terms of Use: https://api-production-4642.up.railway.app/legal/terms

Screenshots

Slimming World4 screens
MealMerlin4 screens

Verdict

The call

Slimming World and MealMerlin are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Slimming World sells 1 in-app purchase, starting at $24.99 per month and MealMerlin sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Slimming World versus MealMerlin: the parameters behind the verdict, then further details
ParameterSlimming WorldMealMerlin
PriceFreeFree
Rating4.8 (317 ratings) — better—
Positive reviews82.1% of reviews—
Number of ratings317 — better—
Update frequencyMonthly—
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size103 MB31 MB
Age rating17+4+
DeveloperSlimming Worldpasito tola

In-app purchases

1 purchases

Slimming World

Subscriptions1
  • Monthly membership$24.991 Month
3 purchases

MealMerlin

Subscriptions2
  • MealMerlin Pro Monthly$4.991 Month
  • MealMerlin Pro Annual$39.991 Year
One-time1
  • Metabolic Audit$9.99

Questions

Is Slimming World free?
Slimming World is free to download, with in-app purchases available.
Is MealMerlin free?
MealMerlin is free to download, with in-app purchases available.
Do Slimming World or MealMerlin have ads?
Neither Slimming World nor MealMerlin shows ads.

Other comparisons