XFR vs Eagle Ballistics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
XFR
Connect your Magnetospeed chronograph to your iOS device to manage velocity data. Organize multiple data series, email results, or back them up with iCloud. Adjust device settings and clear data directly from your phone.
- Transfer velocity data
- Manage multiple data series
- Email data
- iCloud backup
- Clear device data
- Adjust device settings
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This app allows Magnetospeed (MS) chronograph users to transfer velocity data to their iOS device. A user can manage multiple data series within the app and also send data via email or back it up with iCoud. The app can also clear the current data from the MS device and also change/adjust the MS device settings. Note: The XFR app needs permission to access your iPhone's microphone.
Eagle Ballistics
This app provides advanced ballistics calculations for long-range shooting and competitive marksmanship. It offers detailed environmental adjustments, wind correction, and trajectory predictions. A free version is available with limitations, alongside tiered subscriptions for enhanced features and range.
- Fast and accurate ballistic engine
- Environmental and wind correction
- Gyroscopic stability analysis
- Built-in documentation and videos
- PRS mode for multi-target and moving targets
- Bluetooth connectivity for sensors and rangefinders
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A full featured ballistics app for long range hunters and PRS shooters. Incredibly fast and accurate ballistic engine. Many calibration and setup tools. Detailed documentation is built-in. Free Download includes almost all features with 100yd Range limitation. Paid subscriptions: * Lite Subscription: Most features are available up to 500yd * Long Range: No range limit * PRS: Multi-Target and Moving Targets Documentation and Videos * Detailed Built-in Documentation for all Features * Videos: see http://eagleballistics.com Ballistic Engine * Ballistic Coefficient * Gyroscopic Stability * Air: Temperature, Pressure, Humidity, Density * Wind: Cross, Head/Tail * Angle Modified Range * Spin Drift * Aerodynamic Jump * Coriolis (horizontal) * Vertical Eotvos * Gravity Adjustment * Tripod shooting error correction * Valley Wind Correction Calculations * Max-ordinate calculation * Retained Energy on Impact * Retained Velocity on impact * Flight Time * Speed of Sound * Transonic Zone Wind * Manual Entry * Bluetooth Wind Meter Advanced Wind Subscription includes Rain and Mirage conversion tools Rain and Mirage to Windspeed Converter Supported iPhone Sensors * Latitude from internal GPS * Station Pressure * Camera * Screen Ruler * Angle Sensor for Inclination * Compass for Azimuth Bluetooth Connectivity * Most Range Finders * Most Environmental Sensors * Most Wind Meters Warning * Excessive bullet RPM * Insufficient Gyroscope Stability * Max Hunting Range for Lead/Copper Bullets Units * MOA or MIL Scope Turrets * Imperial and Metric Units Built in Tools & Calibration * Scope Correction Factor Calculator * Ballistic Coefficient and Muzzle Velocity Truing * Scope Height: Visual Ruler or Calipers * Zero Height & Offset: Visual Ruler * Ranging with Reticle and/or Animal Size * Target Inclination and Azimuth * Target Speed * Wind Average Databases * Rifle (Max 30 Rifles) * Bullets Library * Lane/Targets Range Cards * Standard Drop Table * Wind Variation Table * Detailed Target Analysis * Rifle Stock Table PRS Mode * Multiple Lanes with Multiple Targets * Instant Calculation and Update for All Targets * Relative Wind According to Target Azimuth * Allows Wind Variation Settings * Moving Target Lead Calculation Diagnostics * Sensitive Analysis * Accuracy Analysis License: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://eagleballistics.com/privacy-policy Patent No .: US 11,415,592 B2
Screenshots
Verdict
The clearest difference is in-app purchases: XFR at none against Eagle Ballistics's 6. XFR also leads on ratings volume (824 vs 30) and iOS requirement (11.0 vs 17.0). Eagle Ballistics's advantage is review sentiment (75% vs 43%) and update cadence (monthly vs every 35 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Eagle Ballistics sells 6 in-app purchases, starting at $2.99 per month. XFR asks for nothing beyond the download.
Eagle Ballistics holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: XFR has 824 ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 43% of XFR's written reviews are positive against 75% of Eagle Ballistics's.
XFR ships an update every 35 months, Eagle Ballistics monthly. The most recent releases landed on September 28, 2026 and September 26, 2026 respectively.
| Parameter | XFR | Eagle Ballistics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (824 ratings) | 4.8 (30 ratings) — better |
| Positive reviews | 43.3% of reviews | 75.0% of reviews — better |
| Number of ratings | 824 — better | 30 |
| Update frequency | Every 35 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #191 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 12 MB |
| Age rating | 4+ | 17+ |
| Developer | Nielsen-Kellerman Co. | Eagle Ballistics LLC |
Customer experience
XFR
Eagle Ballistics
Bugs and requests
XFR
Reported bugs
3 issues- Won't sync to iPhone
- Doesn't work on iPhone 7, iPhone X, iPhone 14 Pro Max
- Delayed syncing, have to unplug and plug back in iPhone
Requested features
5 requests- Ability to separate load data from one continuous session
- More useful database features like Chronolog or Caldwell apps
- User-adjustable color scheme
- Active syncing between iPhone and iPad
- iCloud syncing for data access across devices
Eagle Ballistics
Not enough reviews yet to summarise bugs or requests.
In-app purchases
XFR
No in-app purchases
Eagle Ballistics
- Lite$2.991 Month
- Long Range Monthly$4.991 Month
- PRS$9.991 Month
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- Lite$14.991 Year
- Long Range$24.991 Year
- PRS$74.991 Year








