Sparrow is only available on desktops and not mobile phone.
This Jimmy believed he was downloading a genuine version of a Sparrow Wallet app for his iPhone from the App Store.
The scammers have known already that we mostly use Android on this forum and that we do always report them. Apple app store was not used before but Android Play store. But after many report and taking down of their apps, they moved to App store for Apple. This is the reason App store scam wallets are many now.