I bought it at the full price (back then it was $20) and it was worth it to me since I use it often enough, but I know it was too expensive for most consumers who might not use it that often. Nice to see it at a more reasonable price.

If you change OS’s a lot though be warned – it is a third party app so I’ve always had to re-enter calling card details after and OS upgrade. I only use one, sometimes two cards, but if you have a lot of them it and do OS changes a lot it would probably drive you nuts.