TWINMASTER app for iPhone and iPad

A Tripmaster or distance counter is an important and valuable tool f.i. Oldtimer- or Youngtimer rallys, orientation rallyes.. to know the driven distances and to compare with a Roadbook.

The following functions are available:

+ DST total
+ DST trip
+ Speed
+ Course
+ Counting DST total up / down
+ Counting DST trip up / down
+ Simple switch of counting direction with a button (in case of driven wrong way)
+ Manual increase / decrease of distances
+ Reset DST total
+ Reset DST trip
+ various colours for display
+ map view and current Position
+ map types choiceable Standard - Satellite - Hybrid
+ Choice for displaying kmTotal with one or two post-decimal positions

Twinmaster now supports light and dark mode.

PRO functions (In-App-Purchase)
+ GLP AVG
+ GLP DST - TIM
+ GLP sector time
+ External Remote Control reset trip - reset total - map
Level your control experience with the external control of the App-functions

Much success for your next rally and enjoy Twinmaster..


"Continued use of GPS running in the background can dramatically decrease battery life."