WTFatLite vs 00
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WTFatLite
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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.
00
This workout tool allows you to create custom exercise routines with timers, reminders, and notes. Track your progress by saving sessions and viewing your improvements over time. It's a free, personal project designed for users who know their own exercises.
- Customizable exercise display
- Metronome and reminder setup
- Exercise tagging and notes
- Create sets and routines
- Save and track session progress
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00:37 is a workout tool. important notes: - the app doesn't contain any exercises or routines. add and do exercises you know how to do properly. 00:37 does not replace a mentor or classes. - the app is a side project, mostly designed for personal use, made available for free. I may update it occasionally, but don't expect regular updates or convenient features. I may also remove features that don't work for me or change things in ways you may not like; that's part of the deal here. features: - 5 types of exercises display time, repetitions, or amounts in different ways. - add a metronome, setup time, reminder sounds, tags, and notes to your exercises. - create sets and routines of exercises. - save your sessions so you can see how you progress. tip: - you are less likely to miss a timer, break, or reminder by going to Settings > Notifications > 00:37 and setting the notification style to 'Persistent'.
Screenshots
Verdict
The clearest difference is ads: 00 at none against WTFatLite's shown. 00 also leads on update cadence (daily vs every 3 months) and iOS requirement (10.0 vs 14.0). On price, in-app purchases 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
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, 00 daily. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.
| Parameter | WTFatLite | 00 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | F-NET Apps | Adriaan de Jongh |
In-app purchases
WTFatLite
No in-app purchases
00
No in-app purchases









