4Trainers vs Pickleball Eye

Achieving the best fitness in the most important competitions for athletes is your and our greatest concern. However, this involves spending a lot of time planning training sessions in detail, modulating their workload: Do you need tools to plan and prepare your training sessions even for the long term while saving valuable time? Do you want to have your training programs and exercises with you at all times? Do you want to create new exercises or use suggested ones to vary your sessions? Do you want to be able to quickly share information with your athletes? 4Trainers is the app that will help you do all this and more: SAVE TIME AND TAKE YOUR ATHLETES TO THE NEXT LEVEL. Do you want to track your athletes' performances and competitions? Do you need to keep track of training attendance? Schedule all competitions, internships and tests? 4Trainers provides you with all the tools you need. Keep it all with you on your smartphone, tablet or pc, wherever you are, wherever your athletes are, peak performance has never been closer.

In pickleball, you don’t have time to watch feet while volleying. Pickleball Eye’s AI-powered Kitchen Bell alerts you the moment your opponent steps into the kitchen—so when you see them volley and hear the bell, you make the call. A zoomed in photo on the phone provides evidence. (Kitchen Bell feature requires iPhone 12 or newer.) Rapid Replay continuously buffers the last 45 seconds, letting you instantly review close line calls. Just slide the frame selector, double-tap the ball. A close-up slow-motion replay bounces to life. In seconds, you make the call with confidence. Pair it with the Pickleball Eye Phone Holder for a rapid setup and the perfect view down the line—just like a dedicated line judge. Available on Amazon from Pickleball4D. For those who want to save their memorable moments, Video Record Mode writes video directly to your Photos Library, automatically pausing during Rapid Replay and resuming when the review is complete. Let's talk accuracy of Kitchen Bell feature. Two design goals were created with the intent to greatly increase your awareness of when your competition is volleying from the kitchen and minimize errant rings. The first design goal was if a foot crossed the line from edge to edge we can be confident that 95% of the time the bell will sound. The second goal: if your toe is just next to the line, 99.5% of the time we don't want to hear a sound.  The result is that if your toe is just on the line, most likely, the bell will NOT sound. Why? Systems have tolerances and we want to avoid the bell going off when it should not. Three known limitations: 1) On bright sunny days when used outdoors sometimes dark heavy shadows may cause false alarms on the Kitchen Bell. It is the opinion of Pickleball4D that this defects impact is minor compared to the opportunity to use this UNMATCHED FEATURE that utilizes ai technology both indoors and outdoors on cloudy or semi-cloudy days. 2) Video recording are initiated from the the Rapid Review Buffering screen, when exiting to the Rapid Review screen, the video file saves instead of pausing. It is the opinion of Pickleball4D that having multiple video files saved instead of one continuous file should not block the launch of this product. 3) Early and late in the day, long shadows from fence poles surrounding the court may cast a shadow near the kitchen line. In some cases this will cause errant Kitchen Bell alarms. This lasts for about 15 minutes until the shadow moves out of the area of the kitchen line. Please review the Privacy Policy at https://www.pickleball4d.com/privacypolicy. Please review the User License Agreement at https://www.pickleball4d.com/copy-of-privacy-policy. Optional Hardware Disclaimer and Limitation of Liability Pickleball4D is the designer and owner of the Pickleball Eye Phone Holder (“Holder”). The Pickleball Eye Phone Holder (“Holder”) is an optional accessory intended solely to minimize setup time when using the Pickleball Eye application. The Holder is not required for use of the Software. The Holder is not manufactured by Apple Inc., and Apple Inc. does not endorse, warrant, or assume any responsibility for the Holder or its use. Use of the Holder is entirely at your own risk. You are solely responsible for ensuring that your device is securely mounted and used in a safe manner. Pickleball4D and Apple Inc. shall have no liability for any personal injury, property damage, device damage, loss of data, or any other loss or harm arising from or related to the use, misuse, or malfunction of the Holder. By using the Holder, you acknowledge and agree that: 1. You are solely responsible for assessing the suitability of the Holder for your intended use. 2. You will follow all safety instructions and use the Holder only as intended. 3. You release and hold harmless Pickleball4D, its affiliates, and Apple Inc. from any and all claims, liabilities, damages, and expenses arising from or related to the Holder.