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Red Dot Zero

Action & Precision

Get it on Google Play
v1.0.25Updated Aug 23, 2026
Download on the App Store
v1.0.21Updated Aug 26, 2026

Zeroing a red dot at the range usually means doing MOA-per-click math in your head. Red Dot Zero does it for you: enter where you're standing and the distance you want to zero at, tap where your group actually landed, and the app tells you how many clicks to turn — left or right, up or down.

How it works

  • 1. Current range The distance you're shooting from right now.
  • 2. Desired zero The distance you want the optic zeroed for, e.g. 25 or 50 yards.
  • 3. The goal A pulsing red dot shows where rounds must hit at your current distance to be zeroed at the desired one.
  • 4. Real-world check Fire a group, then tap the target grid where the bullets hit.
  • 5. Adjust Get the exact clicks for your optic, e.g. 57 Left, 70 Up.

Features

  • Pistol & rifle Caliber, grain, barrel length and sight height for each setup.
  • Any optic 0.25, 0.5 or 1.0 MOA per click.
  • Trajectory chart Bullet path against sight line and barrel, with a drop table by distance.
  • My Firearms Save each gun with its caliber, zero and barrel, and switch between them.
  • Imperial or metric Inches or centimeters, yards, meters or feet — set separately.
  • Built for the range High-contrast dark interface. Your saved firearms stay on your phone — no account, no cloud.

Screenshots

Red Dot Zero uses a simplified ballistic model to get you on paper fast. Always confirm your zero with live fire, and follow your range's safety rules.