Lin outlined ways Apple can protect consumers from these duplicitous apps, including refunding its users and reviewing apps more strictly.
One of the more egregious apps he found was an app named "Mobile protection:Clean & Security VPN" that asked users to pay $99.99 a week for a completely worthless service.
To learn how this could be, Lin installed and ran the app, and was soon prompted to start a "free trial" for an "anti-virus scanner" (iOS does not need anti-virus software thanks to Apple's sandboxing rules for individual apps).
Developers aren't entirely miffed about the change (first highlighted by 9to5mac), because the API allows for submitting app reviews without having to leave the app. Until Apple removes these scam apps and improves its app review policies, spread the word to make sure family and friends don't get ripped off! The app was making $80,000 a month, according to data from marketing firm Sensor Tower. It's always a good idea to check your subscriptions on a regular basis, if only to see if you're subscribed to apps you're no longer using. It's basically a Flappy Bird clone that you control with your voice, which sounds utterly very bad, so maybe Apple's decision to reject it was just as much about quality as it was about content. "These are the exact sort of apps that the App Store review process should be primarily looking to block", Gruber wrote on his Daring Fireball blog in response to Lin's research. Unfortunately, Apple has no filter to sift through search ads as of now.
Fixing its subscriptions requires much more than banning some keywords, though. Of course, the rub is that the next prompt includes a Touch ID authentication window which relays that once the 7-day trial period expires, a recurring 7-day subscription to the tune of $99.99 will commence. Clicking the Account link on the front page of the Mac App Store will do the same.
"They're taking advantage of the fact that there's no filtering or approval process for ads, and that ads look nearly indistinguishable from real results, and some ads take up the entire search result's first page", wrote Lin.
iOS: If you've never checked on your app subscriptions, I don't blame you.
"The ads I'm referencing show up right in the app store when you do searches", Lin said.