How to use QualityShot, and answers to common questions. If this does not solve your problem, please contact us by email.
The camera's current output resolution does not reach the requirement (3.88 megapixels). The top of the screen shows the actual output resolution and the required pixel count. Switching to the rear camera, or choosing a larger capture size in Settings, may meet it.
On some models the front camera's output resolution does not reach 3.88 megapixels. In that case, that camera cannot capture. By design, the app does not capture below the requirement.
Auto capture releases the shutter only when the sharpness in the middle of the frame reaches the threshold. It never settles for a weaker shot, so it keeps waiting in conditions such as a dark place, a subject that is too close, or a plain surface with nothing to focus on. Try adding light, moving back a little, or putting a part with text in the middle. Press the shutter again while it is waiting to stop.
No. The app does not do text recognition (OCR), scanning or PDF conversion. It goes as far as leaving a photo that can be read later. Photos are saved to your device's gallery, so use your usual apps to read or submit them.
It is the amount of high-frequency detail in the middle of the frame (Laplacian variance), expressed as a number. It is a hint for checking focus, not a verdict on whether the photo is in focus. Auto capture decides when to shoot with this same measurement. How the value comes out depends on the model and the subject, so it cannot be compared across devices.
For subjects with little high-frequency detail to begin with, such as blank paper or a white wall, the sharpness score means little. Instead of forcing a judgment, the app shows "Undetermined". It does not mean something is wrong.
No. It is a measured value that varies with the subject. A subject close to a single color naturally uses fewer levels, and the value is not used to judge quality.
Turn on "Show the measurement frame" in Settings, and the measured area appears as a frame on the capture screen (off by default). It is a display-only setting: turning it on or off changes neither the measured area nor the recorded measurements. On some devices the framing differs between the preview and the photo, so the frame is approximate.
No. Tilt is only shown as a number while you shoot; the app does not correct the image after capture (keystone correction), because a corrected image would no longer match the recorded measurements. Use the reading to hold the device level.
The receiving app may re-compress the image. The measurements attached when sharing are the values at the time of capture.
Nowhere. Photos and measurements are stored on your device, and sharing happens only when you do it yourself. The ad SDK (Google AdMob) does use the network, though. See the Privacy Policy for details.
There is currently no paid option to hide ads. Ads appear only on the result and settings screens, never on the capture screen.
Please send bug reports and requests to harulab.developer@gmail.com. Including the following helps us look into it faster.