My list is for Android... you know, the master race :)

Merriam-Webster
Wikipedia
Conversion [flosoft]
MElectrician
ElectroDroid
Fing
Speedtest [Ookla - paid version]
inSSIDer
Compass [Smart Tools]
Sound Meter (for quick dirty check - not to calibrate with)
MyRadar Weather [paid version]
Firefox
Sky Map
Car Buying [Kelly Blue Book]
eBay
Zillow
DaTuner Lite (for musical instruments)
Torque Pro
SatFinder Lite & SatFinder Tool
CCTV apps (several)
Manufacture apps (SONOS, HEOS, ROKU, Alexa, Lutron, dozens more...)
Google apps (Maps, Gmail, Drive, Translate, Calculator, etc.)
Music apps (Pandora, Spotify, dozens more...) + an SD card with songs in lossless & high-rez audio.
Video apps (Netflix, Vudu, Amazon, YouTube, dozens more...)

... I have 120 apps total now and growing... What did we ever do before smart phones LOL!!!
I don't put games on my devices.
I take full advantage of making folders to organize everything in. Something I rarely see anyone else do. When you have 100+ apps just thrown across several screens, how the hell are you going to find anything? I only need to use 2 screens for everything.
Oh, and mobile security is very important these days. I use ESET, same as I use for my laptops & PCs.