Metapho_borderedHere’s one for the iOS users out there concerned about information security issues! I just discovered the app Metapho, which lets you view the metadata associated with the photos on your iOS device. More importantly, it lets you choose to share images without metadata, while maintaining the metadata locally. How does it do that?

It uses iOS 8’s new extensions feature to make itself available in the universal share sheet as a destination for photos. Choose it, and it gives you the option to share it further without metadata. Metapho makes a quick edit in the background, shares the photo to the next program (Twitter, Facebook, SMS, Mail, whatever) without any of the associated metadata, then keeps the file with metadata in the photo roll. So you get all the benefits of sharing photos, without the infosec leaks. I’ve tested it, and it seems to work just like it says.


I’m impressed, and happy to see iOS apps that are focused around giving people control over their data in ways that may not be obvious to most users. Metapho is free to download and view your metadata, $1.99 in-app purchase to enable removal and the share-sheet ability.

By griffey

Jason Griffey is the Director of Strategic Initiatives at NISO, where he works to identify new areas of the information ecosystem where standards expertise is useful and needed. Prior to joining NISO in 2019, Jason ran his own technology consulting company for libraries, has been both an Affiliate at metaLAB and a Fellow and Affiliate at the Berkman Klein Center for Internet & Society at Harvard University, and was an academic librarian in roles ranging from reference and instruction to Head of IT at the University of TN at Chattanooga.

Jason has written extensively on technology and libraries, including multiple books and a series of full-periodical issues on technology topics, most recently AI & Machine Learning in Libraries and Library Spaces and Smart Buildings: Technology, Metrics, and Iterative Design from 2018. His newest book, co-authored with Jeffery Pomerantz, will be published by MIT Press in 2024.

He has spoken internationally on topics such as artificial intelligence & machine learning, the future of technology and libraries, decentralization and the Blockchain, privacy, copyright, and intellectual property. A full list of his publications and presentations can be found on his CV.
He is one of eight winners of the Knight Foundation News Challenge for Libraries for the Measure the Future project (, an open hardware project designed to provide actionable use metrics for library spaces. He is also the creator and director of The LibraryBox Project (, an open source portable digital file distribution system.

Jason can be stalked obsessively online, and spends his free time with his daughter Eliza, reading, obsessing over gadgets, and preparing for the inevitable zombie uprising.

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