I use Windows Mobile as my main phone os, maybe you are interrested in some essential apps for WP8(.1) if you travel a lot:
Have fun and enjoy...
BK
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Mobiles: iPhone 7+, iPhone 7, iPhone SE, Blackberry Priv, Honor 8, Lumia 950
Prepaid-SIM: 3 UK, Save Money Sim, Toggle Mobile UK, XX-Sim, Koko Mobile