Yes, Left & Right Speaker Tester is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Left & Right Speaker Tester is free.
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Not sure what the other bad ratings are for. this app does exactly it says it does. one mono music file, two stereo music files, and a stereo file of a train passing by. Audio pan works, left/right channel identifier noises work. Perfectly done and dead simple.
