# Weight Loss Navigator > Weight Loss Navigator is a simple calorie-tracking app for iOS and Android. Users calculate their TDEE (Total Daily Energy Expenditure), log food and workouts in seconds, and watch their daily calorie deficit add up. A 3,500-calorie deficit equals roughly one pound of weight loss. Key facts: - Platforms: iOS (App Store) and Android (Google Play) - Core features: TDEE calculation, one-tap food/workout logging, AI calorie estimates, daily and weekly deficit tracking - App Store: https://apps.apple.com/us/app/weight-loss-navigator/id6738050705 - Google Play: https://play.google.com/store/apps/details?id=com.weightlossnavigator.client ## Pages - [Home](https://weightlossnavigator.com/): Overview of the Weight Loss Navigator app. - [How It Works](https://weightlossnavigator.com/how-it-works): How TDEE-based calorie tracking works in the app. - [Free Calorie (TDEE) Calculator](https://weightlossnavigator.com/tdee-calculator): Free calculator showing how many calories your body burns at rest each day. - [Blog & Resources](https://weightlossnavigator.com/resources): Articles on calorie tracking, TDEE, food logging, and weight loss. - [FAQ](https://weightlossnavigator.com/faq): Frequently asked questions about the app, pricing, and privacy. - [About](https://weightlossnavigator.com/about): The story behind Weight Loss Navigator. - [Contact](https://weightlossnavigator.com/contact): Get in touch with the Weight Loss Navigator team. - [Privacy Policy](https://weightlossnavigator.com/privacy-policy): How user data is collected and handled. - [Terms of Service](https://weightlossnavigator.com/terms): Terms of service for the app and website. ## Articles - [When to Update Your TDEE (And Why It Changes as You Lose)](https://weightlossnavigator.com/resources/when-to-update-your-tdee): A smaller body burns fewer calories. If your target never changes, your deficit quietly shrinks until progress stops — here is when to adjust. - [How to Log a Meal You Can't Measure](https://weightlossnavigator.com/resources/log-a-meal-you-cant-measure): Restaurant food, your mother-in-law's casserole, a plate someone else built. Here is how to estimate well enough that it counts. - [How Deficit Streaks Work (And Why Streaks Beat Willpower)](https://weightlossnavigator.com/resources/how-deficit-streaks-work): A streak turns weight loss into a chain you do not want to break. Here is exactly how ours is calculated — and why that framing works. - [Your First Week With Weight Loss Navigator: A Day-by-Day Guide](https://weightlossnavigator.com/resources/your-first-week): Seven days from install to a working habit. What to do each day, what to ignore, and what to expect from the scale. - [Weight Loss After 40: What Actually Changes (And What Doesn't)](https://weightlossnavigator.com/resources/weight-loss-after-40): Your metabolism did not collapse at 40. Something did change, though — and it is smaller and more fixable than you have been told. - [What to Do the Day After You Blow Your Calories](https://weightlossnavigator.com/resources/day-after-you-blow-your-calories): One big day does not undo anything. What you do on Sunday matters far more than what happened on Saturday — here is the actual math. - [You Don't Need More Discipline. You Need a Smaller Number to Hit.](https://weightlossnavigator.com/resources/you-dont-need-more-discipline): If you have quit five plans, the plans were probably too aggressive. Discipline is not the missing ingredient — a survivable target is. - [Why the Scale Went Up After a Perfect Week](https://weightlossnavigator.com/resources/scale-went-up-perfect-week): You did everything right and the number rose. That is water, not fat — and here is how to read the scale so it stops lying to you. - [I've Lost the Same 20 Pounds Five Times. Here's What Finally Changed.](https://weightlossnavigator.com/resources/lost-the-same-20-pounds): The problem was never the losing. It was that every plan I picked had an end date, and I had no idea what my number was. - [Why Most TDEE Calculators Are Wrong for Everyday People](https://weightlossnavigator.com/resources/why-tdee-calculators-are-wrong): Standard calculators ask how active you are, then trust your answer. That single question is why so many people eat at maintenance while believing they are in a deficit. - [How Many Calories Should I Eat to Lose Weight?](https://weightlossnavigator.com/resources/how-many-calories-to-lose-weight): There is no universal number — it depends on your body. Here is how to find yours, how much to subtract, and the floor you should not go below. - [The 3,500 Calorie Rule: Does 1 Pound Really Equal 3,500 Calories?](https://weightlossnavigator.com/resources/3500-calorie-rule): The most quoted number in weight loss is a useful approximation with real limits. Here is where it holds up, where it breaks, and how to use it anyway. - [What Is a Calorie Deficit? A Plain-English Guide](https://weightlossnavigator.com/resources/what-is-a-calorie-deficit): A calorie deficit is the only requirement for losing weight. Not a diet, not a food list — just eating less than you burn. Here is how to build one. - [TDEE vs BMR: What's the Difference (And Which Should You Use)?](https://weightlossnavigator.com/resources/tdee-vs-bmr): BMR is what you burn doing nothing. TDEE is what you burn living your life. Confusing the two is why a lot of people eat too little and stall. - [What Is TDEE? The Only Number That Actually Matters for Weight Loss](https://weightlossnavigator.com/resources/what-is-tdee): TDEE is the number of calories your body burns in a day. Once you know it, weight loss stops being guesswork and becomes arithmetic. - [Logging Food Made Easy](https://weightlossnavigator.com/resources/logging-food-made-easy): Tired of food database overwhelm? Learn how the app makes food logging fast and flexible, including saving meals and using AI estimates. - [Workouts That Actually Count](https://weightlossnavigator.com/resources/workouts): Every workout subtracts from your calorie total—just tap to add. Built-in AI makes logging easy and accurate. - [Food Logging That Learns With You](https://weightlossnavigator.com/resources/food-logging): Log once, tap forever. Your food history builds itself for fast, simple tracking—no database bloat required. - [Tracking Your Progress Without the Stress](https://weightlossnavigator.com/resources/tracking-progress): No charts overload. Just simple daily and weekly views that show your calorie balance and momentum. - [Getting Started: Register & Set Your TDEE](https://weightlossnavigator.com/resources/getting-started-tdee): New to Weight Loss Navigator? This post walks you through creating your account and completing the five-step setup to calculate your daily calorie goal. - [How to Set Your TDEE](https://weightlossnavigator.com/resources/how-to-set-your-tdee): Your TDEE is the number of calories you burn per day. Here's how Weight Loss Navigator helps you calculate it and why it's the starting point of your journey.