This application turns you iPhone 4 into a mini filter lab, with a live preview. You can experiment your own combinations using multiple filters in a pack of than 40 filters. Adjust parameters and watch the result instantaneously. However, when you take a photo, the filters are applied in full resolution, full quality. Review it instantaneously within the app to modify your presets.
Filter combinations are organized in presets you can organize, modify, share or import directly from the app. Just press the round icons at the right of the panel items to enter filter edit mode.
Just after you have taken a photo, click on its icon (next to the "snapshot" button) for a full resolution preview. If you are satisfied, you can email it or send it directly to dropbox and instagram.