Astro Locator vs Bubble Level + Compass Pro

Spend less time setting up and more time observing. Astro Locator helps you quickly and accurately polar align your equatorial mount by showing the precise position of Polaris or Sigma Octantis. Designed for both visual astronomy and astrophotography, it makes polar alignment fast, simple and reliable wherever you observe. Whether you’re setting up in your garden or under dark skies, Astro Locator provides all the information you need on a single, easy-to-read screen. Features include: • Accurate Polaris and Sigma Octantis positioning • Compass direction and correct elevation for your location • Latitude, longitude and altitude • UTC and local time • Sunrise and sunset times • Astronomical twilight start and end times • Current moon phase • Clean, uncluttered interface designed for fast setup Astro Locator is ideal for astronomers who assemble and pack away their equipment for each observing session, helping you spend less time setting up and more time enjoying the night sky. Trusted by amateur astronomers since 2014.

Bubble Level + Compass Pro combines a precise spirit level, compass, and Apple Watch companion app, so when your phone is placed somewhere hard to see its screen, you can still get live readings from your wrist. No more out-of-reach setups, and no more crouching. Features: • Bullseye level plus horizontal and vertical levels with 0.1 degree precision • Bubble level units: Angle (degrees) or Incline/Slope (%) • True and magnetic heading with direction text • Magnetic declination • Apple Watch companion app • Gyro or accelerometer sensor mode • Gyro calibration offset to compensate for camera bulge or uneven phone cases • Pitch/Roll/Yaw rotation rate readouts • Compass calibration status • Red-light night mode The tool is normally included in my astronomical app (Polar Scope Align Pro), but I decided to release it as a separate app because I could not find anything with the features I wanted on the app store. (A free ad-supported version is also available)