Picture this: you’re at a friend’s birthday party, the celebrations are going riotously well and everyone’s buzzing with buoyant sociability. You and other party-goers decide to take snaps of the goings on with your smartphones to preserve the magic and share it with others.

And that’s where the problems begin. How do you collaborate on sharing content on mobiles? Spend ages getting all your collaborators’ phone numbers? Emails? Maybe Airdrop?

This is exactly the scenario that prompted James Jerlecki, founder of the up-and-coming apartment and sublet sharing platform, Rumr, to come up with a solution. As he put it on a recent Medium.com post: “Collaborating on mobile sucks.” So he and his colleagues devised Stichy, a group-sharing app available for free download on iOS and Android.

Stichy lets you, and as many others as you like, contribute multimedia content together, whether in the form of impromptu video production, images or simply comments, collating all of them into an in-app slideshow for easy group sharing. If a friend has added you to a particular Stichy, you can go on adding your own contributions, comments and likes, and you can share it with others. The content is displayed or ‘played’ on the slideshow in the order it was created and, unless its creator decides to close it, it can be left open-ended to allow for a constant inflow of additional content. Even when a Stichy has been closed, it remains downloadable and viewable even though no further additions can be made.

OK, so its primary use is the informal sharing of media between friends, but it’s not hard to see how it could be used to create a visual record of a particular activity or process, like how the garden changes from one season to another or how fast your kitten is growing week by week.

Could it be monetised? Jerlecki told TechCrunch journalist Natasha Lomas: “Right now our focus is on making it easy for people to collaborate on mobile. There’s not a whole lot out there that is really simple or fun to use. We’ve seen the tool used both ways by creating threads like silly selfies and memes or like how I used it with my family on Thanksgiving to capture and create a story of a meaningful time in my life.”