---
title: "TrueData - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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 a"
---

# TrueData — United States
> Ballistics Calculator

![TrueData App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/c8/0b/89/c80b893a-ed8e-4a6f-7df0-a921add1f7f2/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png)

**Developer:** [Sierra Bullets](https://apptail.io/developer/sierra-bullets-oLRw)
**Category:** Sports
**Rating:** 5.0/5 (11 ratings)
**Price:** Free
**Bundle ID:** com.sierraballistics.truedata
**Store:** Apple App Store
**Country:** United States
**Version:** 3.0 (released 2026-10-11)
**Original Release:** 2025-12-18
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6755197795)
**AppTail Page:** [https://apptail.io/app/truedata-YpSx/united-states](https://apptail.io/app/truedata-YpSx/united-states)

## TrueData Description
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 Kestrel, 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
• Adjust your rifle's Scope Scale Factor
• Round trajectories to your scope's clicks

## TrueData Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b6/96/76/b6967636-9215-f5b3-2f30-c6993b6a0e31/1_Calculator.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/97/8e/ef/978eeffd-015f-ae10-a826-efec5fba7ed5/2_New_Range.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f1/80/3e/f1803eb0-ca57-83c3-f72a-71d40314a936/3_Bullet_Library.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/63/df/7e/63df7e0b-a9a4-ff2b-ecaf-4b7d8d01c483/4_Ballistic_Correction.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/bb/25/54/bb25547a-a09b-484c-1aa6-bb858e536f15/5_Density_Altitude.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4a/e5/b4/4ae5b4d1-3076-5f01-b676-6aed52766676/6_Scan_for_Device.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f6/e2/db/f6e2dbd9-a178-d1b9-c2c9-c533f91827d8/7_Devices.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e6/f6/d5/e6f6d5dd-5e32-4776-b635-dd48acbce564/8_Skywatch_BL.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/73/cf/9a/73cf9a33-eb58-ed98-b695-22e96a927690/9_Target_Card.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4e/41/fc/4e41fc6f-0fde-a571-bdc8-5671288b5f93/10_Trajectory_Table.png/1242x2688.png)

## TrueData Rating Breakdown in United States
- 5 stars: 11 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## TrueData Reviews in United States

### ***** "Easy"
Easiest app to use
-- Texas dude123, 2026-04-17

### ***** "Intuitive and Easy"
Best ballistic app on the market. It’s so much easier to run than Hornady or Applied. Has Doppler data and truing capabilities. Crazy how it’s still a free app.
-- Ballistics Nut, 2026-04-16

### ***** "Ballistics"
App is great, can put all my pew pews in and the different set ups.  Have ran it out to 1200 yards and works perfect.
-- Corvette-4-Life, 2026-01-20

### ***** "Best Ballistics Solver"
This has helped to up my distance I feel accurate! The data is true!
-- Jose1911-1199, 2026-01-06

[View all TrueData reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## TrueData Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | New Zealand | Sports | #213 |



## TrueData Available In
- [United States](https://apptail.io/app/truedata-YpSx/united-states)
- [Austria](https://apptail.io/app/truedata-YpSx/austria)
- [Australia](https://apptail.io/app/truedata-YpSx/australia)
- [Belgium](https://apptail.io/app/truedata-YpSx/belgium)
- [Brazil](https://apptail.io/app/truedata-YpSx/brazil)
- [Belarus](https://apptail.io/app/truedata-YpSx/belarus)
- [Canada](https://apptail.io/app/truedata-YpSx/canada)
- [Switzerland](https://apptail.io/app/truedata-YpSx/switzerland)
- [Chile](https://apptail.io/app/truedata-YpSx/chile)
- [China](https://apptail.io/app/truedata-YpSx/china)
- [Czechia](https://apptail.io/app/truedata-YpSx/czechia)
- [Germany](https://apptail.io/app/truedata-YpSx/germany)
- [Denmark](https://apptail.io/app/truedata-YpSx/denmark)
- [Spain](https://apptail.io/app/truedata-YpSx/spain)
- [Finland](https://apptail.io/app/truedata-YpSx/finland)
- [United Kingdom](https://apptail.io/app/truedata-YpSx/united-kingdom)
- [Indonesia](https://apptail.io/app/truedata-YpSx/indonesia)
- [Iceland](https://apptail.io/app/truedata-YpSx/iceland)
- [Italy](https://apptail.io/app/truedata-YpSx/italy)
- [Japan](https://apptail.io/app/truedata-YpSx/japan)
- [North Macedonia](https://apptail.io/app/truedata-YpSx/north-macedonia)
- [Mexico](https://apptail.io/app/truedata-YpSx/mexico)
- [Malaysia](https://apptail.io/app/truedata-YpSx/malaysia)
- [Nigeria](https://apptail.io/app/truedata-YpSx/nigeria)
- [Netherlands](https://apptail.io/app/truedata-YpSx/netherlands)
- [Norway](https://apptail.io/app/truedata-YpSx/norway)
- [New Zealand](https://apptail.io/app/truedata-YpSx/new-zealand)
- [Peru](https://apptail.io/app/truedata-YpSx/peru)
- [Portugal](https://apptail.io/app/truedata-YpSx/portugal)
- [Russia](https://apptail.io/app/truedata-YpSx/russia)
- [Saudi Arabia](https://apptail.io/app/truedata-YpSx/saudi-arabia)
- [Sweden](https://apptail.io/app/truedata-YpSx/sweden)
- [Argentina](https://apptail.io/app/truedata-YpSx/argentina)
- [South Africa](https://apptail.io/app/truedata-YpSx/south-africa)

---

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