Rudy Huyn. Ended up working at Microsoft. He was doing a bunch of apps, but I think you might be confusing Snapchat for Instagram. His Instagram app worked for a year or two, but Snapchat killed any attempt at a third party app immediately, as soon as they realised what’s going on.
It got Snapchat in the end, there was some guy who made a whole bunch of missing apps, including a tinder app which worked better than the original.
Rudy Huyn. Ended up working at Microsoft. He was doing a bunch of apps, but I think you might be confusing Snapchat for Instagram. His Instagram app worked for a year or two, but Snapchat killed any attempt at a third party app immediately, as soon as they realised what’s going on.