A sophisticated app aimed at group testing and advanced individual testing. Please take some time to examine it -- 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.

Both help conduct the 4 Yo-Yo Intermittent tests -- 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
--- Maintain lists of names - save/reload them
--- Import names ... locally, iCloud
--- Edit, save, reload results
--- Graphical analyses -- various

- 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 for spreadsheets

Work out, stay fit, rock on!

[Reference: Fitness Training in Football, a scientific approach - by Jens Bangsbo (December 1994)]