Na serveru Slunečnice.cz je zajímavá iOS aplikace:

Kawabatafarm Laps 3

Kawabatafarm Laps is a high-precision circuit logger/timer. You can use not only car circuit racing, bike, also rally, cycling and touring, even jogging. [Main Features] - Location information of its own operations, achieve high-precision measurement error of less than 0.01 seconds - Support lap…

Adresa: https://www.slunecnice.cz/sw/laps-gps-circuit-logger/