
Telemarketing spammers bothering you? Clingy exes calling in the middle of the night? iOS 7 will let you block calls from specific numbers to save your sanity. Rather than allow third-party developers to modify the native Phone app like on Android, Apple has chosen to offer this feature itself.
Apple mentioned the new privacy option in its WWDC keynote rundown of what’s new in iOS 7, and detailed in a press release that this fall the update to its mobile operating system includes, “Phone, FaceTime and Messages blocking to prevent specific people from being able to contact you.”
Yesterday I wondered if Apple might finally open up some more flexibility to iOS developers and allow them to provide this kind of functionality. Android lets apps like Mr Number and many others let you block specific numbers or entire area codes, instantly hang up on them, or automatically send them to voicemail. Call and text blocking builds on the iOS Do Not Disturb feature you can schedule to block calls and messages from all numbers except certain favorites or groups.
As a gauge of just how popular this capability could be in iOS, Mr Number had racked up over seven million downloads before being acquired by WhitePages a week ago. Perhaps it suspected that call blocking would go native in iOS, denying its potential there, and feared the same would happen on Android.
It’s hard to assess how valuable call and text blocking is unless you’ve ever had a stalker or bully. To those who have, the feature can make or break their mobile experience.
Getting woken up or interrupted by unwanted communication can feel like a deep invasion of privacy, and make people scared or angry every time their phone buzzes. It lets people fight back against drunk dials from old boyfriends or girlfriends, creepy strangers, and disrespectful marketers breaking their workflow.
With any luck, Apple will evolve the feature with more granularity over time. Putting communication devices in our pockets that anyone can reach with the right string of digits forced us to surrender control of our attention. Call and text blocking for iOS will put that control back in the hands of millions of people.

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Josh Constine is a Venture Partner at ~$3 billion AUM early-stage VC fund SignalFire where he invests in pre-seed startups with a focus on consumer. He teaches startup pitch writing and fundraising strategy as a recurring lecturer at the Stanford Graduate School Of Business, and with accelerators like Z Fellows, Inception Studios, and Stanford ASES. Previously, Constine was Editor-At-Large for TechCrunch where he wrote 4000 articles and was ranked the #1 most cited tech journalist in the world from 2016-2020 by Techmeme. Constine has led 300+ on-stage interviews and keynotes in 18 countries with luminaries including Mark Zuckerberg and the CEOs of Shopify, DoorDash, Snapchat, Instagram, and more. Constine graduated from Stanford University with a Master’s degree he designed in Cybersociology, and wrote his thesis in 2008 on why remixable memes would be the future of marketing. He has been quoted in the NYT and WSJ, is regularly featured on CNN for his thoughts on AI and Silicon Valley, and advises startups on PR, fundraising, and organic growth.