Uber, Airbnb, Deliveroo, and similar apps often ask for a phone number for sign-up, verification, or contact with drivers and hosts. A real UK +44 number is usually accepted. BuyUKeSim gives you a real UK eSIM: you get the QR code after payment, install the eSIM, then use that number in the app. No VoIP or virtual number - it is a real mobile line, so these platforms accept it. Useful if you are outside the UK but need a UK number for these services.
For "UK number Uber", "UK number Airbnb", or "delivery app UK number", a real UK eSIM from BuyUKeSim is a practical solution - crypto payment, no KYC, instant delivery.