Find a brief rundown of choices on Mediabistro’s AppNewser blog. This framework gives you a starting point to collect info. It matters what kind of phone you have, for one thing. Though it’s said the piper must be paid, LevelUp promises a way around those pesky credit card charges. Hmm. What is your experience? (Use the Contact Us page to answer.)
Square
https://squareup.com/?gclid=CNvTwerg27ICFUqi4AodhwEAog
the device is free, snaps into the headphone jack on your iPhone, and generally gets good reviews.
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