# Fern > Private shared photo capsules for trips, weddings and weekends, by Bramble Labs Inc. ## Availability - [Install Fern for iPhone and iPad](https://apps.apple.com/app/id6791904305): free on the App Store; iOS 15 or later. - Android is not available yet. The website offers optional Android updates. ## How photo capsules work Members contribute photos while a capsule is active. Contributed photos stay hidden until the chosen reveal time; the host cannot reveal photos early. Before reveal, a selected cover and contribution counts are not a preview of the hidden photos. Reactions and comments belong after reveal. ## Public references - [Fern](https://usefern.app/): current features and downloads. - [Photo capsule guide](https://usefern.app/how-it-works): before, during and after reveal. - [Support](https://usefern.app/support): product help. - [Contact](https://usefern.app/contact): public contact details. - [Privacy](https://usefern.app/privacy): product and website privacy. - [Terms](https://usefern.app/terms): terms of use. - [Updates privacy](https://usefern.app/waitlist-privacy): optional updates and signup data. This guide describes public product information only. It does not expose capsule membership or photos. Website demonstrations use sample content, not customer media. The linked pages own current availability and terms.