For coaches, PE teachers and athletes
The app every coach and every athlete should carry.
A badly paced test means a wrong MAS. And a wrong MAS means sessions that are too easy or too hard for the whole season.
Cadlo turns your phone into a test box: the beeps land at the exact pace of the chart, and every athlete walks away with their real MAS.
Why you need it
- Because a wrong measurement ruins everything after itBeeps paced to the chart from the first level to the last, even with the screen locked. Beep test, PACER, Yo-Yo, 30-15 IFT, Cooper: 21 tests in one app.
- Because you test a team, not one runnerOne start for the whole group, a tap on the name of whoever drops out, everyone’s level recorded. No score sheet, no typing afterwards.
- Because measuring is pointless without progressHistory, progress curve, a report to share and a training plan towards the target level. No account: nothing leaves the phone.
Download on the App StoreGet it on Google Play
The beep test and the Cooper test are free, with no time limit. Everything the app does
We believe every athlete deserves an accurate measurement, not only those with access to a lab.


Field fitness tests, explained and calculated.
Beep test, PACER, Yo-Yo, 30-15 IFT, Cooper: the exact table of every test, the level each entry standard requires, and what your score means.
01 The tests
One protocol per page: how it runs, the full level table, what it measures and how to prepare.
- 01Beep test (20 m shuttle run)level, MAS
- 02PACER test (FitnessGram)laps, MAS, VO₂max
- 03VAMEVAL teststage, MAS
- 0430-15 Intermittent Fitness Teststage, VIFT
- 05Yo-Yo Intermittent Recovery Level 1distance, VO₂max
- 06JRFT, the 15 m police bleep testlevel
- 07Cooper test (12 minutes)distance, MAS
- 08Half-Cooper (6 minutes)distance, MAS
- 09Bronco test (rugby)time
- 10Léger-Boucher testcoming
- 11Gacon 45-15 testcoming
- 12Yo-Yo Intermittent Recovery Level 2coming
- 13Yo-Yo Intermittent Endurance Level 1coming
- 14Yo-Yo Intermittent Endurance Level 2coming
- 15Yo-Yo Endurance Level 1coming
- 161.5-mile runcoming
- 172-mile run (ACFT)coming
- 181-mile runcoming
02 Calculators
Level, shuttles, time or distance: enter what you did, read your MAS and your paces.
- 01Beep test calculator: level to MAS and VO₂maxCalculator
- 02VAMEVAL calculator: stage to MASCalculator
- 0330-15 IFT calculator: stage to VIFT and training zonesCalculator
- 04Yo-Yo IR1 calculator: level to distance and VO₂maxCalculator
- 05PACER score calculator: laps to level, MAS and fitness zoneCalculator
- 06VO₂max calculator: beep test, PACER or CooperCalculator
- 07Beep test setup: 20 m course and cone layoutCalculator
- 08Police beep test calculator: required level by forceCalculator
- 09Army beep test calculator: required level by serviceCalculator
- 10Team fitness test report: MAS, distance and rankingCalculator
- 11Cooper test calculator: 12-minute distance to MAS and VO₂maxCalculator
- 12Training paces from your MASCalculator
03 Questions people ask
Answer first, explanation second.