Not worth it
It was a decent app, at best, when it was free. But changing from a free app to paid to boost exposure ruins it for me and any thinking person. Ill be removing this app from my iPhone immediately.
Lesson to all developers of all software for all platforms, if you want to charge for your software, do it from the start. Dont give it away for free to try to hook people and then switch to paid software. Thats called a "Bait and Switch" and its morally and ethically wrong.
mosxs about
Units Convertor