Independence note: askotto is an independent consumer-information and consultancy publisher. We are not a mobile network, and we are not owned by, partnered with, or endorsed by Three, O2, Sky Mobile, EE, Vodafone or any provider named in these reports. Everything here is general guidance, marked and written by our own reviewers; confirm current details with the network before acting. Our phone and WhatsApp lines reach askotto consultants only — never a network's own customer service.
Section 01
Who runs what
ThreeOne app: allowances, bills, caps, add-ons, roaming, eSIM issue, connection checker, support chat.
O2Two apps, one login — MyO2 (admin: bills, caps, device balance, roaming, eSIM) and Priority (perks and presales).
SkyMy Sky covers television, broadband and mobile together: reserve balance, resizes, roaming passes, bills.
EEAmong the fullest: family SIMs, device unlocking, broadband management, caps, eSIM, allowances.
Budget brandsSlimmer apps or web dashboards; giffgaff is entirely online by design.
Section 02
The five-second fraud check
Red-pen note: Genuine offers appear inside your account. When any caller describes a deal, open the app: if the offer isn't visible there, the call is fraudulent — hang up. This one habit defeats the entire 'upgrades team' industry.
App hygiene
- Install from official stores only; never from a link in a text or call.
- The app login guards the number your bank texts — unique, strong password.
- Turn on every extra protection the network offers.
- Read one-time codes to nobody, including 'the network'.
Independence note: askotto is an independent consumer-information and consultancy publisher. We are not a mobile network, and we are not owned by, partnered with, or endorsed by Three, O2, Sky Mobile, EE, Vodafone or any provider named in these reports. Everything here is general guidance, marked and written by our own reviewers; confirm current details with the network before acting. Our phone and WhatsApp lines reach askotto consultants only — never a network's own customer service.