The Secret of Weight
The Secret of Weight Summary
The Secret of Weight is a free, ad-supported, with in-app purchases Android app in Health And Fitness by Le Secret du Poids. Released in Sep 2013 (12 years ago). It has about 4.1M+ installs and 25K ratings with a 4.58★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 25K monthly active users and generates around $<10K monthly revenue (37% IAP / 63% ads). Store last updated May 25, 2026
Recent activity: 1.6K installs this week (7.4K over 4 weeks) showing steady growth , and 59 new ratings this week View trends →
Advertising: AppGoblin detected 1.00 monetized ad creatives shown inside the app.
SDK intelligence: AppGoblin detected 4 development tools(e.g. Kotlin), 3 ad networks, 2 business tools, 1 analytics: product,and 1 mediation integrated into The Secret of Weight. View full SDK list →
Data tracking: The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Jul 30, 2026.
The Secret of Weight SDKs Summary
The Secret of Weight was last scanned for SDKs on 2026-08-16. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
AppGoblin saw The Secret of Weight uses 4 Development Tools
Kotlin
Google
Bumptech
SquareAppGoblin saw The Secret of Weight uses 1 Analytics: Product
FirebaseAppGoblin saw The Secret of Weight uses 3 Ad Networks
AppLovin
FacebookAppGoblin saw The Secret of Weight uses 2 Business Tools
JourneyApps
RevenueCatAppGoblin saw The Secret of Weight uses 1 Mediation
AdMob4.58★
Ratings: 25K
Screenshots
App Description
Calories! But what's the point? The Secret of Weight explains everything!
The Secret of Weight (TSOW) is a simple and practical calorie counter based on photos. With this fun and playful application, you can either maintain your weight, slim down or even gain weight; it’s all up to you!
We all have heard about calories before! Why use this app then? Is it easy to navigate? How do we add up our calories?
The Secret of Weight explains everything! The number of calories you can spend each day. What happens if you go over your budget? How to rectify when you overindulge... Most importantly, the application simplifies calorie counting for you, as you can select what you had to eat using food pictures in the app!
How does it work?
- There is a daily calorie budget which you can spend without getting fat. You can spend your money as you wish! You can eat all kinds of food and as long as you stay within your budget you will not gain weight! This is THE big Secret of Weight.
Okay, but how does it all work?
- Throughout the day, you can add the food you're having and select the portions you're having by using the food pictures. A small gauge shows you how many calories you have left to spend for that given day.
- If you eat more than the budget, you’ll gain weight: a chart shows you, in real time, how many grams you gain when you overindulge.
- If you eat less than your estimated budget, you’ll lose weight: a chart indicates, in real time, how many grams you have lost.
The new thing about this concept is to make you see how losing weight does not necessarily mean banishing forbidden foods from your diet! You will also precisely learn how many calories you will need to eat or not in order to gain or lose a kilo.
Contents:
- Caloric gauge and dashboard.
- Food catalogue:
2096 photos of food
2750 foods represented
- Possibility to add food to your cart, using or not photos.
- Possible to save your own recipes with or without photos.
- You can add food items to "Favorites".
- Food shopping (it is possible to check your basket for the last 10 days).
- Customized Settings.
- Help topics.
- Small character as your coach ("Flo").
- Possibility to customize the dashboard by changing the color of the gauge and the character (by pressing one or the other).
No fees, no additional paying options. The only product that we present is the book, The Secret of Weight (available on Amazon), which, if you