Alternative camera app?

[hal1]

I'm looking to retain the current camera qualities and features set, as I am comfortable that Google built the best combination and compromise of features and picture quality for most situations.

However I would like to find an app that would include two additional features, that would be a slide to zoom rather than pinch to zoom, and something that allows me to tap the picture frame to snap the shutter, rather than the round button on the side.