Thanks for that. I was not aware that apps for "Other" places can be sideloaded.
£42 Locked to EE and 'very good' https://store.musicmagpie.co.uk/products/blackberry-leap-16gb-black-ee-6c19db24-23cc-4b81-aef4-5fe9387448ac Yes unlocking is cheap - but Telephones Online stuff is always excellent and I have had nothing but praise for them. Still - it's only a phone!
cold..music magpie now 39-42 but sometimes with codes -minus 10 quid... so aprox 35..
Very narrow minded - have a look here: https://crackberry.com/sideload-apps-your-blackberry-using-google-chrome
BlackBerry OS? Why bother?