Privacy
Sharp does not collect, transmit or share any of your data — with us or with anybody else. There are no accounts and no servers of ours, and the app has no networking code of its own. Your photographs are read where you keep them, the results are written on your device, and nothing goes anywhere unless you share it yourself.
Sharp is a photo tool for iPhone and iPad. You give it several photographs of the same scene and it returns one: a focus stack, an average, a picture with whatever moved through it removed, a light trail, or simply the sharpest frame of a burst. There is nothing to sign in to.
None. Sharp has no accounts of ours, no sign-in of ours, no analytics, no advertising identifiers and no crash-reporting service. There is no networking code in the app: it never opens a connection to send us — or anyone else — anything at all. We do not know how many people use it, what they photograph, or whether they use it, because none of that is ever sent anywhere.
Frames you choose from the Files app stay where they are. Sharp reads them through a security-scoped bookmark — the system's way of granting one app access to one file you picked — and never copies them into itself. A fifty-frame RAW set is well over a gigabyte, and duplicating it to read it once would be rude as well as unnecessary.
Frames you choose from Photos are handed to the app by the system picker, which runs outside the app: Sharp sees only the images you selected and never asks for access to your photo library as a whole. Those frames are copied into the app's own container so the list survives quitting, and they are deleted when you remove the frame.
Results are written to the app's own temporary folder until you share them. Everything is protected by iOS Data Protection like anything else on your device. A backup you make yourself, to iCloud or to a computer, is between you and Apple and is governed by Apple's policies rather than this one.
One tool — the one that removes whatever moved through a scene — has to hold every frame at once, and it keeps them in a scratch file on disk rather than in memory. Before writing it, Sharp asks the system how much space is free, so that it can refuse rather than fill your disk. That is the one system API Sharp declares a reason for in its privacy manifest. The scratch file is unlinked the moment it is created: it exists only while the run does, and nothing is left behind even if the app is stopped in the middle.
Sharp is free, with one optional in-app purchase that removes the twelve-frame limit and adds the retouch brush and the 16-bit export. That purchase goes through Apple's App Store. Apple tells the app whether it has been bought and nothing else: we receive no payment details, no Apple Account name, and no record of who bought it. StoreKit is the only part of Sharp that talks to a network, and it talks to Apple.
Sharp is not directed at children and collects nothing from anybody, of any age.
If this policy ever changes, the new version will be posted here with a new date at the top. Since the app collects nothing, a change would mean the app had started doing something it does not do today, and it would be said plainly in the release notes as well as here.
Questions about this policy: pablinme@me.com.