Yo-Yo Intermittent Pro vs OpenTracks Usage & Stats

A sophisticated app aimed at group testing and advanced individual testing. Please take some time to examine it (see https://youtu.be/yFrDFCJUfyE). Do a few "dry" runs before going live with it. Yo-Yo Intermittent Pro is an enhanced version of the free Yo-Yo Intermittent Test app available at https://play.google.com/store/apps/details?id=rudy.android.yoyo. Both help conduct the Yo-Yo Intermittent test (Recovery Level 1, 2 and Endurance Level 1, 2) as defined by Jens Bangsbo of Copenhagen University In addition to what the free version has to offer, Pro provides the following: Multiple Users, large group. See https://goo.gl/D13dmC --- Maintain lists of names - save/reload them --- Edit, delete, save, reload results --- Graphical analyses -- various --- Switch between "Enclosure" and "Name" mode --- Import names ...sdCard, Cloud [Gdrive] - Estimates vo2Max (Recovery Level 1, minimum 1000m) - View progress ... multiple graph options - Training options - skip levels, loop a level - Sort Results. Name, Distance or Date - Export results, via email --- Paste-Special directly to GoogleSheet --- Or load into other spreadsheets Work out, stay fit, rock on! [Reference: Fitness Training in Football, a scientific approach - by Jens Bangsbo (December 1994)] Caution: Audio. There are tens of thousands of Android phone variants. Invariably, the odd one has issues. Validate audio (incl. Bluetooth) using the free version.