WTFatLite vs Undiet
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
WTFatLite
Record your body weight and fat percentage with an engaging, physics-based interface. Visualize your progress over time with interactive graphs. Offers a fun alternative to traditional health tracking apps.
- Physics engine for interactive recording
- Keyboard-free data entry
- Weight and fat percentage tracking
- Interactive data graphs
- Data reset options
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This app has a physics engine and will make you to enjoy recording your body weight/fat! It is fun more than general scaling applications. Enjoy! *** Features *** - Recording without keyboard. - Graph for your data. (Weight/Fat at the same time) *** How to use it *** [ Weight/Fat ] 1. Choose the date. 2. Then, choose the weight you want use. (Also you can change it any time.) 3. Tap the display on the scale until your weight. 4. Push the register button, then done! [ Graph ] You can drag the graph for confirming any day. [ Settings ] - Reset All data can be deleted. You can choose all weights/all fats/both. - Glid Showing any lines can be changed.
Undiet
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Undiet Tracker is an app that will help you to track your diet progress. The main goal is to get a healthy lifestyle. It's not difficult if you want it enough. Undiet Tracker will help you to get back in time, so you can see day by day your progress (and if not what you didn wrong). How? With main App features. Main Undiet Tracker - Photo progress features: โข Photo Tracker - take a your selfie every day. Side and front view. Just stand in front of the mirror and follow the instructions โข Weight Tracker - guess what it is ;) And you can change it ;) โข Food Tracker - we have a very good diet for you. You can follow it and track what you eat. โข Drink - do you know how important water intake is to your body? โข Exercising - every physical activity is good. Our goal is change your lifestile. In a sustainable way Why use Undiet Tracker App: โข It's really easy to compare your progress pictures โข Easy-to-use interface โข It is easy to set a start date โข The interface looks nice โข The App update is on a weekly basis โข It's FREE We help you, you help us. Leave your comment with suggestions.
Screenshots
Verdict
The clearest difference is ads: Undiet at none against WTFatLite's shown. Undiet also leads on update cadence (every 6 days vs every 3 months) and iOS requirement (9.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WTFatLite ships an update every 3 months, Undiet every 6 days. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | WTFatLite | Undiet |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | โ |
| Update frequency | Every 3 months | Every 6 days โ better |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Monetization | Ad-supported | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 14.0 | 9.0 โ better |
| Further details โ not scored | ||
| Size | 6 MB | 17 MB |
| Age rating | 4+ | 12+ |
| Developer | F-NET Apps | Krnic |
In-app purchases
WTFatLite
No in-app purchases
Undiet
No in-app purchases
Questions
Is WTFatLite free?
Is Undiet free?
Do WTFatLite or Undiet have ads?
Which is updated more often, WTFatLite or Undiet?
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