I want to charge users between 25¢-$1 for occasionally-used functions rather than a subscription fee for permanent access to those features. Any advice?
<a href="https://payments.amazon.com/sdui/sdui/business?sn=devfps/aggregated" rel="nofollow">https://payments.amazon.com/sdui/sdui/business?sn=devfps/agg...</a><p>With Amazon Payments you can either have your customers prepay a set amount and deduct from that as they go, or pay with credit, and you charge them when they reach a certain threshold.<p>That way you can avoid paying a transaction fee on each small purchase.