TrueData

Ballistics Calculator

Only for iPhone

Free · Designed for iPhone

iPhone

Set up your rifles and bullets, refresh the weather and drag out your distance. Turret clicks are calculated on the fly and displayed instantly. Includes the full Sierra and Barnes bullet libraries and Doppler Data, plus: • Muzzle Velocity truing feature • BC truing feature • Barnes Doppler Library • Sierra Doppler Library • Multiple weather input options for any scenario or equipment • Elevation offset option for rifle zero • Intuitive, modern interface • Quickly dial in the wind and target distance • Calculates multiple click adjustments in MRAD or MOA • Supports combinations of metric and imperial • Supports ICAO and US Metro units • Supports G7, G1 and many other drag models • Supports either single, or up to 6 BC entries • Create and save your own rifles and bullets • Quickly view and duplicate bullets and rifles • Calculates spin drift • Retrieves weather at your location • Allows overriding temperature, humidity, air pressure • Automatically detects shooting angle (up/dn) • Generates trajectory tables showing zero and transonic zone • Ability to export trajectories as CSV/TSV/Pipe and PDF Report • Displays equivalent 1 MOA & MRAD when choosing distance • Displays equivalent 1 click of current scope at distance • Haptic feedback for positive button presses • Export your settings, rifles and bullets to Google Drive, DropBox, Email... • Import your settings, rifles and bullets to make switching devices easier • Add multiple distances to view a convenient Target Card • Connect your Bluetooth weather device for real-time changes (currently supports Skywatch and WeatherFlow) • Account for weather conditions while zeroing (Zero Weather) • Allow for variations in powder temperature with a simple interface • Allow for chronograph distance in bullet velocity • Fine tune your exact Wind Direction in a popup • Convenient Training Timer • Quick compass option in the Wind card • Virtual Range Finder estimates your target distance via GPS • Select basic or detailed form entry options in settings

Ratings & Reviews

  • 5.0
    out of 5
    10 Ratings

New! • Added New 2026 Barnes & Sierra Products to Libraries - Added Scope Scale Factor - Found in Edit Rifle section • Added Additional Doppler Profiles (4) - Sierra .243” 6mm 107gr MKX #1571 - Sierra .277” 175gr TGK #4475 - Sierra .308” 230gr MK CN #2251 - Sierra .375” 350gr SMK #9350 • Added Round to Clicks as an Option - E.g. ¼ MOA click units will have the output rounded to the nearest ¼ - .25, .50, .75, etc) - E.g. .2 MIL click units will have the output rounded to the nearest .2 - 0.2, 0.4, 0.6, etc) - Setting found in Edit Rifle section

Version 1.1.0

The developer, Sierra Bullets LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

  • Seller
    • Sierra Bullets LLC
  • Size
    • 45.1 MB
  • Category
    • Sports
  • Compatibility
    Requires iOS 15.6 or later.
    • iPhone
      Requires iOS 15.6 or later.
    • iPod touch
      Requires iOS 15.6 or later.
    • Mac
      Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English
  • Age Rating
    16+
    • 16+
    • Learn More
    • Frequent
      Guns or Other Weapons

      Contains
      Unrestricted Web Access
  • Copyright
    • © 2026 Sierra Bullets LLC
  • Developer Website
  • Privacy Policy

    • More by Sierra Bullets LLC