Having used a vast variety of to-do apps, ranging from the very simple, to more advanced/complex ones (Toodledo, Omnifocus to name a few), I settled on Any.Do about 6months ago. Very happy with the simplistic interface, with it’s underlying functions nicely tucked away until I need them - not taking up screen realestate unnecessarily. Integrates well on my Galaxy S8, and previously on my Iphone 6+, and I make daily use of the “Moment” day planning. I often access it from a desktop using the web version which retains the same GUI, and syncs fine across my devices. The reminders function works well (both time/location based) - perhaps a little more control of the geofence size would be nice, but not essential. For all the other day planners/to-do managers I’ve used, I find the interface the most ‘pleasing’ to use - clean, uncluttered, and only showing what I need shown. I use my Google account for logging in, which work fine. At times, I wish for the option to have a second account. Overall, very happy with it. Worth a try.