This setting will continue to measure your cadence and distance, relying solely on the iPhone’s accelerometer. By disabling the GPS and data connection (which is used to download map data), you save significant battery usage. 

That said, when the GPS is enabled, enTrainer is careful to use only the minimum power required.


enTrainer supports most mp3, m4a, AIFF and WAV formats. It does not support the the older iTunes Store format that has DRM (Digital Rights Management, aka FairPlay “Protected AAC audio file”). Fortunately, Apple stopped using this format several years ago and songs purchased on iTunes are fully compatible now. 

Should you have older Apple Protected AAC audio files in your library, Apple has an upgrade program called “Music Match”, which will replace these files with higher bitrate and unprotected versions.

Otherwise, if these files are in your playlist, enTrainer will simply skip over them.



This setting will gradually adjust the tempo of the music to your measured pace. It is nice if you want to start slower and then quicken your pace. The music will speed up to match. This is a little different than the normal mode of enTrainer, where you use the music to keep you steady on your target cadence. 

In earlier versions of the app, it was called Adaptive Sync, Music Follow Me seems better.

Beat induction is the process in which a regular isochronous pulse is activated while one listens to music (i.e. the beat to which one would tap one’s foot).

Biology (of a rhythm or something that varies rhythmically) cause (another) gradually to fall into synchronism with it.

[ no obj. ] (entrain to) fall into synchronism with (something) in such a way.

Brainwave entrainment, the practice of entraining one’s brainwaves to a desired frequency.
Entrainment (biomusicology), the synchronization of organisms to an external rhythm.