The MYLAPS HandReader app is required for the use of the HandReader. The MYLAPS HandReader enables you to time your races in the most remote places on earth. Let your volunteers pack the light and flat device in their backpack, to walk up the mountain to the split point and time the athlete without stopping them. The struggle of moving decoders and mats onto the mountain is a thing of the past. All of your timers and volunteers can easily operate the HandReader without intensive training upfront.