TurboScan turns your iPhone into a scanner. Pixoft’s app lets you scan and spit out high-quality PDFs. TurboScan is fast — processing a page in less than four seconds — and can detect paper edges to help improve accuracy. And by tapping the SureScan 3x button, you can take three pictures of the same document, and the app processes them into a single superior image. You can process scans in color or black-and-white.