Ratio Calc! vs Karate Buddy

Ratio Calc is a quick and easy tool for radio control car racers to use trackside. Knowing your final drive ratio (FDR) is very useful for comparison with other racers to determine if your car is geared correctly. It lets you quickly select your car by filtering on manufacturer and model. Select your pinion and spur size and the FDR is displayed. Tyre diameter can also be entered to calculate your rollout. Ratio and roll out charts are also available which plot pinion and spur gear combinations to create very handy reference tables. - Save your favourite cars for quick access - Select measurement units (imperial/metric) - Select your preferred gear pitch, alternative ratios in other pitches will be shown - Over 2000 cars/variants in the database which is updated regularly

Karate Buddy is a unique training aid designed by fighters for fighters. The app will transform your Kumite. • Karate Buddy is great for solo training; it provides creativity and pushes you. • Karate Buddy is the ultimate workout timer. • It allows you to randomise your work periods; gives directional commands; number commands in both English and Japanese; and has a randomised bleep function. • Devised by WKF Champion Paul Newby and voiced by Karate Legend: Matt Price. • Karate Buddy is great for 1-2-1 coaching as it allows you to focus on the student and drills rather than counting the commands. • Karate Buddy is great for dojo training for the very same reasons, it tells the group what to do while you coach! • Karate Buddy is great for developing your fitness because you are not in charge of when you do something, you cannot rest unless Karate Buddy lets you! “I have had years where I had to train by myself, and good training partners, they’re hard to find, this is why I created Karate Buddy” - Paul Newby BKF Olympic Coach and Former WKF World Champion