[fady]

+1 same thing i was thinking. I wouldn't pay monthly...but I'd use it daily. so ads / product placement might be better route. Great job though!

[synicalx]

I think both would be good, like some mobile apps - free and paid. I hate ads but if it's something genuinely useful I'd be happy to pay a few bucks each month to use it, especially if it's something that will save me money.