Frequent crashes
I use the latest OS, all up-to-date, on my Mac, iPad and iPhone. The Todo software is simple enough to use and it syncs well etc. My single biggest complaint is with the frequent crashes of the Mac version. I have not lost data yet, but it sure is odd the developers are not addressing this much reported isue. I have experienced no crashes with the iPad and iPhone versions.
Depoeloe about
Todo, v3.0.2