If your iPhone is digitally bulging at the seams from all those photos on it, Proton has a new way to back them up with Photo Backup for iOS. Photo Backup has been available for Android users since December and it officially migrated to Apple devices.

The Swiss company isn’t just offering another way to automatically upload your photos to a new online storage space. Proton also promises they will be securely stored with secure end-to-end encryption so no else can see or access them.

Proton also promises seamless integration with your iPhone and photo library. The feature can automatically upload and sync your photo and video collection, and provides simultaneous access on the web and mobile devices. There’s also an “Available offline” mode so you can keep your access to certain photos and videos without internet access while maintaining its encrypted safety status.

Proton’s Photo Backup offers free storage up to 5 GB and a $4/month plan for 200 GB of storage space. The Proton Unlimited plan offers 500GB of storage space for $10 per month and access to other Proton services such as Proton Mail and Proton VPN.

Proton started in 2014 as Proton Mail, an encrypted email service funded by a successful IndieGoGo campaign that raised over $550,000 from more than 10,000 backers. Since then, the Swiss company added new encrypted services such as a VPN, cloud storage and a calendar and rebranded itself simply as Proton. The company reinvented itself against on Monday by announcing it would transition to a non-profit model because “a Swiss non-profit structure provides additional security, which a corporation alone cannot achieve,” according to a company blog post. Specifically, the company says that it has no venture capital investors and also noted that Swiss foundations don’t have shareholders, so setting itself up in this new model could be beneficial for the company to stay afloat in a world where Google, Microsoft and Apple’s offerings are dominant.