# J-Trainer — A Training Tool for Jugglers > Juggling practice tool with interval training and talking timer. (iPhone/iPad app by Heather Marriott.) - Source: https://appshunter.io/ios/app/j-trainer/id1469085063 (this page in markdown: same URL + `.md`) - Developer: [Heather Marriott](https://appshunter.io/developer/919616194) - Category: Health & Fitness - Price: Free - Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 12.2 · 19 MB - Languages: English - Released: 2019-06-20 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/j-trainer/id1469085063/reviews.md ## What is J? Enhance your juggling practice! The J-Trainer app will give you tools to ensure that your juggling practice sessions include proper warmup, practice, and cool down. The interval training portion of the J-Trainer tool allows you to build customized workouts to ensure you spend the right amount of practice time on each section of your practice. Most juggling festivals include endurance contests like: club balance endurance, 5 ball endurance, 5 club endurance, and quarter juggling endurance. The Talking Timer feature of the J-trainer gives you verbal feedback on your endurance, so you don't have to look down at your stop watch. ---------------------------- No advertisements and no in app purchases are contained in this app. ---------------------------- Other apps by this developer: Protect TD (Protect Tower Defense - Save the Animals) Math Tower Defense Eagle Mandarin Mandarin Prof Math Town Spelling Ace Spy Town Spanish Prof ---------------------------- I hope you enjoy this app. Feel free to send me feedback if you have suggestions for future updates. ## Key features - Structured practice routines (warm-up, practice, cool-down) - Customizable interval training workouts - Talking timer for endurance practice - Verbal feedback for endurance contests - Ad-free experience ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/j-trainer/id1469085063/reviews.md ### 5/5 — Best Juggling app *2024-07-27* Helps me remember what juggles I should do. For example a Juggler’s Tennis routine. This app really is great! And can make you practice more! ## Frequently asked questions about J ### What is J-Trainer? J-Trainer is a mobile application designed to enhance juggling practice sessions. It provides tools for structured warm-ups, practice intervals, and cool-downs, along with a talking timer for endurance exercises. ### Does J-Trainer have ads? No, J-Trainer does not contain any advertisements. The app is completely ad-free, allowing for an uninterrupted practice experience. ### What kind of practice does J-Trainer support? J-Trainer supports structured practice routines, including warm-up, practice, and cool-down phases. It also features interval training to customize workout durations for specific juggling skills. ### How does the talking timer in J-Trainer work? The talking timer provides verbal feedback during endurance practice. This feature is particularly useful for contests like club balance endurance or 5-ball endurance, allowing users to focus on their juggling without constantly checking a stopwatch. ### What devices is J-Trainer available on? J-Trainer is available on iPhone, iPad, and iPod devices. It is designed for iOS users looking to improve their juggling skills. ### What is the age rating for J-Trainer? J-Trainer has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content. ### How often is J-Trainer updated? The latest version of J-Trainer is 1.8, last updated on August 15, 2021. Users can expect updates based on developer feedback and suggestions for future improvements. ### Is J-Trainer free to download? Yes, J-Trainer is completely free to download and use. There are no in-app purchases or advertisements associated with the application. ## Version history (last 5 releases) ### 1.8 — 2021-08-15 but fix ### 1.7 — 2021-01-09 Dark Mode support. ### 1.6 — 2021-01-02 new tone choices for beginning and end of activities ### 1.5 — 2019-10-19 bug fixes ### 1.4 — 2019-08-19 bug fixes ## Apps similar to J | App | Rating | Price | Category | | --- | --- | --- | --- | | [Jumping Jacks Trainer](https://appshunter.io/ios/app/jumping-jacks-trainer/id6746092144) | — | Free | Health & Fitness | | [Meadowlands YMCA](https://appshunter.io/ios/app/meadowlands-ymca/id6474547626) | 4.7 (66) | Free | Health & Fitness | | [TPL Sports Performance](https://appshunter.io/ios/app/tpl-sports-performance/id6740832780) | 5.0 (1) | Free | Health & Fitness | | [WhittleStrength](https://appshunter.io/ios/app/whittlestrength/id6503015827) | 5.0 (8) | Free | Health & Fitness | | [J Newtrition](https://appshunter.io/ios/app/j-newtrition/id1670211559) | 5.0 (15) | Free | Health & Fitness | | [Tabatach: Interval Timer](https://appshunter.io/ios/app/tabatach-interval-timer/id982434641) | 4.1 (54) | $0.99 | Health & Fitness | ## More apps by Heather Marriott - [Math Town](https://appshunter.io/ios/app/math-town/id919616195) - [Spy Town](https://appshunter.io/ios/app/spy-town/id1097442267) - [Spelling Ace](https://appshunter.io/ios/app/spelling-ace/id1243156462) - [Spanish Prof](https://appshunter.io/ios/app/spanish-prof/id1358829626) - [Eagle Mandarin](https://appshunter.io/ios/app/eagle-mandarin/id1453749847) All apps by Heather Marriott: https://appshunter.io/developer/919616194 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*