I have android and IOS, but I do not like iOS due to its control freak nature of Apple.
For my hobbies Android allows me to install Apps which I can't even find its equivalent in an Apple, because Apple does not allow such apps.
Example #1 wifi analyzer.
Wifi Analyzer - Android Apps on Google Play
Example #2 GPS Data
GPS Data - Android Apps on Google Play
GPS raw data apps as in the GPS chip in our device, how good or bad it is performing.
I do not know how Apple manage my iPad Air 2 positioning data. It is GPS only ? Is it cell tower triangulation ?
In Android you can choose your positioning data clearly, GPS only and others etc etc.
If I can't define the quality and sensitivity of my built in GPS chip in my device, I am totally not comfortable of using it, hence I bought a US$200+ Bad Elf GPS Pro+ bluetooth version with Barometer.
Bad Elf GPS Pro+
However I do not know how well Bad Elf Apps will co-exist with 3DR Solo Apps.
If I need 2 Apps to operate simultenously, its kind of worrying if officially these two Apps are not from the same "family".
This is positioning data I am speaking of and my Solo can go banana if something goes wrong with positioning and Barometer data if the Bad Elf apps somehow develop conflict with 3DR Solo Apps. Because my iPad Air 2 has built in GPS, I also worry if there is a bug in Bad Elf Apps and iOS over which positioning data or barometer data to use...who knows.
Perhaps it is safer to buy an Apple with no GPS chip & barometer built in if Bad Elf is what I want to use.
I choose stand alone Bad Elf Pro+ is due to it is an apple approved GPS, yeah freakin Apple control freak, I can't just buy any bluetooth GPS. In android, bluetooth GPS is allowed to connect directly with no Apps. The main reason for stand alone GPS is better sky coverage if I am in a car with solid metal roof. Blue tooth GPS we can place somewhere with better sky view easily.
Those who tried GPS DATA apps, you can see how much satellite signal degration when we are sitting as passenger in a car front seat, compared to placing our GPS able android on the dashboard with better sky view.
Cost is not as issue for me, freakin controlled Apple product is my dislike.
.