Honestly, I wonder about people at times (referring to the negative reviews here). I dont think people read before they get all emotional. Im using the Simplemind Pro version on iPad and iPhone, and synchronization via Dropbox is completely seamless and rock solid. I dont use the desktop version yet but I will likely acquire it.
That said, Ive been using mind maps since the mid 2000s. I have found Simplemind Pro for IOS to be totally intuitive, simple to use (I didnt even read the instructions and it still makes sense), and extremely feature rich. Each incremental upgrade just gets better and better! I created my first Mindmap in about ten minutes and had a completed org chart with six branches on it and about 40 names. This is a seriously impressive app! Thanks to the developers for creating such a useful business tool!