We've tried using Adsense and the payout is really bad. I can't post specific's but selling one calculator a day is a lot more revenue that any adsense we've s

We've tried using Adsense and the payout is really bad. I can't post specific's but selling one calculator a day is a lot more revenue that any adsense we've seen. I'm thinking that the word "calculator" may be too generic for adsense and so we are SOL in seeing that as a revenue stream...