Malwarebytes: thoroughly recommended!
Many many years ago Nerds On Site came to fix my PC; he recommended Malwarebytes as the best anti-malware product. So I also installed it on my iPhone at the time. More recently I had an issue with multiple subscriptions. Malwarebytes Support came to the rescue and resolved it. Their team is second to none and thoroughly recommended if you need any help. By the way, Malwarebytes itself is also thoroughly recommended!