Hornady Ballistics vs Kdisk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hornady Ballistics
Perform advanced ballistic calculations using Doppler radar-measured bullet drag coefficients. This app offers both 4DOF trajectory and BC-based calculators, along with a comprehensive ammunition library for precise shooting.
- Advanced 4DOF trajectory calculations
- Doppler radar measured bullet drag coefficient
- BC based calculator
- Ammunition library
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Hornady Ballistics features advanced 4DOF trajectory and ballistic calculations based on Doppler Radar measured bullet drag coefficient inputs. Also includes BC based calculator and ammo library
Kdisk
Manage and access your media and documents stored on an iStorage device. Browse photos, videos, and music with thumbnail views, and perform file operations like copying, deleting, and renaming. It also supports document viewing for various popular formats.
- Media thumbnail display
- List/thumbnail view
- File sharing
- Copy, cut, delete, rename files
- Local/iStorage data transfer
- Slideshow mode for photos
- Music playback with artwork
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“Kdisk” is an application software for iStorage device. •The main interface displays Media thumbnails :video, photo, music • Supports list / thumbnail view, support sharing operation for photos, music and documents • Support copy/cut/delete/create/rename operation and support local/iStorage data transmission in /between • Support to play the photos by slideshow mode • Support music artwork shows, repeat mode setting, time line drag operation • Document: Support formats of .keynote、.numbers、.page、.xls/.xlsx, .doc/docx、pdf、txt、ppt/pptx
Screenshots
Verdict
The clearest difference is rating: Hornady Ballistics at 4.8 against Kdisk's 1.6. Hornady Ballistics also leads on review sentiment (40% vs 15%) and ratings volume (43K vs 112). Kdisk's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 15.0). 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. Hornady Ballistics sells 4 one-off in-app purchases. Kdisk asks for nothing beyond the download.
Hornady Ballistics holds the better App Store score, 4.8 against 1.6. That said, the two scores are not equally well evidenced: Hornady Ballistics has 43K ratings behind it against 112, so its average is the more settled of the two. Written reviews point the same way: 40% of Hornady Ballistics's written reviews are positive against 15% of Kdisk's.
Hornady Ballistics ships an update every 5 weeks, Kdisk every 2 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.
| Parameter | Hornady Ballistics | Kdisk |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (43K ratings) — better | 1.6 (112 ratings) |
| Positive reviews | 39.7% of reviews — better | 14.6% of reviews |
| Number of ratings | 43K — better | 112 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 57 MB | 94 MB |
| Age rating | 12+ | 4+ |
| Developer | Hornady | 振峰 皮 |
Customer experience
Hornady Ballistics
Kdisk
User reviews
Hornady Ballistics
From 43K App Store ratingsWhat we love
- 🚀 Accurate ballistic calculations
- 👍 Intuitive and user-friendly interface
- 💡 Useful features like shooting angle and azimuth
- 🎯 Helps achieve long-range accuracy
Room to improve
- 🐛 Frequent crashes and app not loading
- 🔌 Issues with compatibility on newer devices
- 🔍 Limited bullet and caliber options
- 🔧 Difficulty customizing units of measure
Kdisk
From 112 App Store ratingsWhat we love
- 👍 Works on iPhone and computer
- 👍 Works for some users
- 👍 Flawless operation for some users
- 👍 Happy with results for some users
Room to improve
- ❌ Does not work with iPhone 15
- ❌ Does not work with iPhone 16 Pro
- ❌ Does not work with iOS 17.2
- ❌ App doesn't recognize card reader
- ❌ Cannot open images/videos
Bugs and requests
Hornady Ballistics
Reported bugs
4 issues- App crashes on launch or during use
- Saved data not persisting or resetting
- Incorrect data being saved (e.g. wrong bullet weight)
- Navigation and UI elements not functioning properly
Requested features
4 requests- Add more bullet and caliber options
- Allow customization of units (metric/imperial)
- Integrate with weather stations for automatic data input
- Ability to save and export range cards
Kdisk
Reported bugs
14 issues- App doesn't recognize the card reader
- Cannot open images/videos
- Limited file access (only recent 499 photos)
- No pictures show up on the card
- App crashes frequently
Show 9 moreShow fewer
- Connection drops intermittently
- Does not delete pictures accurately
- Lags out during use
- Corrupts SD cards after a few uses
- Preview images are not accurate
- App crashes before loading content
- Device not recognized when plugged in
- Functionality buttons (3 dots) missing
- App doesn't ask for access on iPad
Requested features
10 requests- Fix the issue with dropping connection
- Resolve compatibility issues with newer iPhones (15, 16 Pro)
- Address iOS 17.2 compatibility
- Improve file access limitations
- Ensure accurate deletion of pictures
Show 5 moreShow fewer
- Fix preview image functionality
- Add an 'eject' tab for SD cards
- Resolve issues with SD card corruption
- Ensure app functions correctly in field conditions
- Make the app more user-friendly for transferring files
In-app purchases
Hornady Ballistics
- Multi Hud$0.99
- Range Cards$0.99
- Group Analysis$4.99
Show 1 moreShow fewer
- Moving Target$4.99
Kdisk
No in-app purchases
