I made some proves with "Accelerometer Analyzer" and with "Sensor kinetics" Apps from android smart phone's.
Both apps has the highest frequency rates are 100 Hz, and both allow you to store the raw data. "sensor kinetics" had a pro (pay) version which allow to filter the signal and record, but I prefer the first one because allow you to select how you want separete the data in the .txt file.
for teaching biomechanics I often use an app from the a Technical University of Aachen/Germany named 'phyphox'. They also implemented some nice experiments for students. see details here ----> http://phyphox.org