Formasync Trainer vs Polyphasic Sleep Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Formasync Trainer
This app provides guided fitness workouts designed for the Apple Watch, offering real-time feedback and speech synthesis to keep you focused. It allows for personalized training adjustments and includes various subscription tiers for access to different program levels.
- Apple Watch native app
- Speech synthesis for guidance
- Real-time workout feedback
- Customizable training progression
- Multiple subscription program levels
- Companion iPhone app and website
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Formasync Trainer was designed from the beginning for the Apple Watch. It can run completely separate from the iPhone with a Series 3 or later Apple Watch and an internet connection. We built an easy to understand interface for the Apple Watch showing you exactly what you need to concentrate on now and what is coming up next. Simple in-app feedback allows us to customize your workout as you progress, helping you break through plateaus and progress your training even faster. Our signature speech synthesis allows us to guide you through your workout & countdown rest intervals so you can keep your workout moving. You can concentrate on your form, and we can tell you what is next. We want to free you from constantly staring at your device. Choose from 3 subscription levels to help you Get Fit Today! See the In App Subscription information. Within each subscription level you will have access to all the Programs in that level, as well as the Programs in the lower levels. Standard Programs - Our signature programs at an affordable monthly or yearly subscription price. Featured Programs - Curated from talented Personal Trainers and reviewed/updated often. Eventually you will be able to communicate with the Personal Trainer for your program and get an even more personalized experience. Celebrity Programs - Once available, the Programs will be supplied by some of your favorite fitness celebrities at a reasonable price point for their expertise. A simple iPhone experience is also available for those times you want more information, or just forgot your Apple Watch. An additional website is available to review your data and manage your account as well. See https://trainer.formasync.com after subscribing to a Program Level of your choosing. The web application will provide you with an ever increasing array of features to help you analyze your progress and suggest improvements for you. Disclaimer: We may request access to your Health data to integrate with Apple's Health app when starting a workout in order to track your workouts. We do not store any health sensitive data other than the number of calories burned during a workout, and a general overview of the heart zones you achieved during a workout. -- Privacy Policy: https://trainer.formasync.com/privacy Terms of Use: https://trainer.formasync.com/termsandconditions
Polyphasic Sleep Tracker
This app helps you master polyphasic sleep schedules to optimize your waking hours. It offers customizable plans, smart reminders, and HealthKit integration to track and adjust your sleep patterns.
- Customizable sleep plans
- Smart sleep reminders
- HealthKit integration
- Dark mode
- Multiple sleep schedule options
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Are you looking to transform your life through a healthier, more optimized sleep schedule? Welcome to Polyphasic, your ultimate guide to polyphasic sleep schedules. This innovative and thoughtfully designed app will serve as your personal sleep coach, assisting you in mastering polyphasic sleep patterns that fit your lifestyle and help you maximize your waking hours. Polyphasic sleep involves breaking up sleep into multiple periods throughout the day. It's an alternative to monophasic sleep, where sleep occurs in one block typically at night. By adopting a polyphasic sleep schedule, some people find they can reduce total sleep time without feeling overly tired. We understand that everyone's sleep needs are unique. That's why our app is flexible and customizable, providing tools and resources to help you adopt the polyphasic sleep schedule that's right for you. Whether you're interested in trying the Everyman, Uberman, or Dymaxion schedules or just looking for a simple siesta, Polyphasic has you covered. Our mission is to make polyphasic sleep accessible and manageable for everyone, regardless of your schedule or lifestyle. Key Features: **HealthKit Integration** Polyphasic integrates seamlessly with Apple's HealthKit, allowing your intended sleep schedule to be overlaid with actual sleep data from devices like the Apple Watch. This feature bridges the gap between your sleep goals and real-world sleep patterns, enabling accurate adjustments to your polyphasic sleep plan. **Customizable Sleep Plans** Choose from pre-set polyphasic sleep schedules or customize your own based on your personal preferences and daily routine. **Smart Reminders** Our smart algorithms give you a heads-up before each sleep session and accounts for the time you need to fall asleep. **Dark Mode** We care about your eyes as much as your sleep. That's why our app comes with a dark mode to reduce eye strain during your nightly use. Polyphasic is more than just an app; it's a lifestyle. It's for the busy entrepreneur who wants to maximize productivity, the artist seeking creative hours, or the student needing more time for studies. Anyone looking to reclaim their time and live more efficiently will find value in Polyphasic. With Polyphasic, your sleep schedule meets real-world application through our seamless integration with Apple's HealthKit. This functionality allows our app to overlay your planned polyphasic sleep schedule with actual sleep data collected from devices like the Apple Watch. This way, you can compare your intended sleep periods with when you're truly sleeping, enabling you to make meaningful adjustments and ensure your polyphasic sleep plan is genuinely working for you. Through this integration, Polyphasic is not just a planning tool, but a real-time, adaptive assistant for your sleep optimization journey. Enjoy the coherence between your sleep goals and your real-world sleep patterns with Polyphasic and HealthKit! Join us on this journey towards better sleep and a more productive life. Download Polyphasic today and wake up to a new world of possibilities! Note: Please consult with a healthcare professional before significantly altering your sleep schedule. Polyphasic sleep schedules may not be suitable for everyone, particularly for those with certain health conditions or those under 18.
Screenshots
Verdict
The clearest difference is price: Formasync Trainer at Free against Polyphasic Sleep Tracker's $2.49. Formasync Trainer also leads on rating (5.0 vs 3.6) and update cadence (every 3 weeks vs every 7 months). Polyphasic Sleep Tracker's advantage is in-app purchases (none vs 4) and ratings volume (5 vs 1). On ads, device support and iOS requirement 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
Formasync Trainer is free to download; Polyphasic Sleep Tracker costs $2.49 up front. Formasync Trainer sells 4 in-app purchases, starting at $4.99 per month. Polyphasic Sleep Tracker asks for nothing beyond the download.
Formasync Trainer holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Polyphasic Sleep Tracker has 5 ratings behind it against 1, so its average is the more settled of the two.
Formasync Trainer ships an update every 3 weeks, Polyphasic Sleep Tracker every 7 months. The most recent releases landed on June 20, 2026 and September 28, 2026 respectively.
| Parameter | Formasync Trainer | Polyphasic Sleep Tracker |
|---|---|---|
| Price | Free — better | $2.49 |
| Rating | 5.0 (1 ratings) — better | 3.6 (5 ratings) |
| Positive reviews | — | 62.5% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 3 weeks — better | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Paid — better |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 40 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Formasync | FiveSheep OU |
Customer experience
Formasync Trainer
Polyphasic Sleep Tracker
In-app purchases
Formasync Trainer
- Standard Programs Monthly$4.991 Month
- Featured Programs Monthly$9.991 Month
- Standard Programs Yearly$49.991 Year
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- Featured Programs Yearly$99.991 Year
Polyphasic Sleep Tracker
No in-app purchases







