Technically we support all the way back to the iPhone 5S, but those devices don't support RAW, so you're really using it for its interface and access to manual

Technically we support all the way back to the iPhone 5S, but those devices don't support RAW, so you're really using it for its interface and access to manual controls. I mean, I'm biased, but I'd say that's compelling even without RAW. As far as technical features, things get really interesting with an iPhone 6S and later. That's when Apple added RAW support, which requires a third-party app. On depth capable devices (7 Plus, 8 Plus, X/XS/11), we have detailed depth visualizations. Anyways, we're generally forward looking, we'd be crazy not to serve most of the folks out there running older phones.