linkSelf vs Compatibility
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
linkSelf
Monitor your health and fitness with a connected Bluetooth smartband. Track exercise, sleep, blood pressure, and blood oxygen levels. Receive smart alarms and phone notifications directly from your band.
- Exercise tracking
- Sleep monitoring
- Blood pressure monitoring
- Blood oxygen monitoring
- Smart alarm clock
- Call/reminder notifications
- Social media sharing
- Health app synchronization
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This application supports a Bluetooth Smartband that connects to your smartphone. Through the Bluetooth Smartband you can track your exercise, monitor your sleep, detect your blood pressure and blood oxygen, and track your progress in the app. Set the smart alarm clock on the Bluetooth Smartband with silent vibration to remind you to get up, so you always wake up on time. You can toggle notification settings to vibrate when you receive calls or reminders via your smartphone so you do not miss anything. You can share your fitness results to Facebook, Twitter and Instagram social platforms. You can synchronize exercise data, sleep data and other data to the [Health App] applications, so you a more comprehensive understanding of health.
Compatibility
This app helps you create a safe and effective vitamin and mineral intake schedule by considering their compatibility and antagonism. It optimizes absorption by timing intakes correctly and provides an informative database for each nutrient.
- Personalized intake schedule
- Optimized nutrient absorption
- Informational vitamin database
- Intuitive diet planning interface
- Minimizes antagonistic reactions
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Optimize Your Nutrition with "Compatibility: Vitamin"! Seeking the perfect nutrient balance but confused by their complex interactions? "Compatibility: Vitamin" is your personal assistant for crafting an effective and safe vitamin and mineral intake schedule. Key Features: - Personalized Intake Schedule: Input your vitamins and minerals, and our app will devise a timetable according to their compatibility and antagonism. - Optimization of Absorption: "Compatibility" allocates compatible elements in one intake, and incompatible ones in different timings, aiding your body to absorb them better. - Informational Database: Learn more about each vitamin and mineral with our concise and informative encyclopedia. - Simplicity and Convenience: An intuitive interface makes planning your diet straightforward and quick. Benefits of Using "Compatibility: Vitamin": - Enhanced digestion and metabolism due to proper vitamin and mineral synergy. - Increased efficacy of your dietary supplements by minimizing antagonistic reactions. - Time-saving convenience in diet planning. - Support of health and well-being based on personal needs and goals. With "Compatibility: Vitamin," you'll ensure not only the correct intake of vitamins and minerals but also do so with maximum efficiency. Download the app today and start improving your health and well-being! DISCLAIMER: The content found in our mobile application is created for informational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Use of our application is at your own risk. It is provided on an 'as is' and 'as available' basis. Although we have done everything possible to create this software, there is absolutely no guarantee that it will operate without errors. We make no warranties that our application and/or any content therein will meet your requirements, will operate uninterrupted, timely, securely, up-to-date, accurately, completely, or error-free, or that the results that may be obtained from the use of the site, our mobile applications, and/or any content therein will be accurate or reliable. You understand and acknowledge that your sole and exclusive remedy in respect of any defects or dissatisfaction with the application is to discontinue using the application. TERMS OF USE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Compatibility at 3.9 against linkSelf's 3.3. Compatibility also leads on review sentiment (60% vs 50%). linkSelf's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 16.6). On price, ratings volume, update cadence and ads 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. Compatibility sells 2 in-app purchases, starting at $1.99 per month. linkSelf asks for nothing beyond the download.
Compatibility holds the better App Store score, 3.9 against 3.3. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews point the same way: 50% of linkSelf's written reviews are positive against 60% of Compatibility's.
linkSelf ships an update every 3 weeks, Compatibility every 2 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.
| Parameter | linkSelf | Compatibility |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (4 ratings) | 3.9 (11 ratings) — better |
| Positive reviews | 50.0% of reviews | 60.0% of reviews — better |
| Number of ratings | 4 | 11 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 60 MB | 62 MB |
| Age rating | 4+ | 17+ |
| Developer | 嘉豪 余 | Ivan Akimov |
Customer experience
linkSelf
Compatibility
In-app purchases
linkSelf
No in-app purchases
Compatibility
- Monthly Subscription$1.991 Month
- Annual Subscription$8.991 Year









