RangeDot: Support

Contact: support@zeroln.com. We usually reply within a few days.

Reporting a problem

Please include:

1. Settings → About: tap it to copy the version line, then paste it into your email.
2. What you expected and what happened.
3. If it's about detection: open the session, tap the share icon, then Support. The app writes the email with the files. A photo of the target helps too.

Tips for good detection

• Use a tripod or a steady rest, and keep the phone still during the session.
• Zoom so that the target fills the screen and stays sharp. Mark the area with one drag (Mark area), then press Start.
• Even light works best. Avoid moving shadows across the target.
• Paper targets with clear contrast work best.

Frequently asked

• Does the app need internet? No. Everything runs on your phone.
• Why does it want the microphone? To hear each shot and check the target right after the bang. It's optional; turn it off in Settings.
• Where are my sessions? In the app under Sessions (on iOS, also in the Files app). Tap Save to copy the images to your photo library.

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