AB Quantum vs Sierra Reloading Manual v6.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AB Quantum
This app provides a comprehensive ballistics solver and profile management tool for long-range shooting. It features a new user interface designed for single-handed use, enabling quick solutions and seamless integration with Bluetooth-enabled devices. Users can sync gun profiles, create customizable range cards, and access an updated reticle library.
- Ballistics solver
- Profile management
- Bluetooth device integration
- Customizable range/target cards
- Reticle library
- Ballistic truing
- Chronograph integration
Read full descriptionHide full description
Applied Ballistics Quantum™ is a state-of-the-art app integrating the most complete ballistics solver and profile management tool for long-range shooting. Featuring an all new user-interface, AB Quantum™ includes a host of new tools and features that will enable shooters and hunters to be more successful in the field. AB Quantum™ creates a new paradigm for ballistic solvers and integration with Bluetooth®-enabled devices. With a host of new features, the platform is designed to save time and add performance for users of all skill levels. The all new user-interface is designed with single-handed use in mind, putting all major features just a swipe or tap away from any screen, which allows users to rapidly obtain solutions in the field or at a match. The simplicity and versatility of the app interface creates an intuitive experience for both new and experienced users. Two new features - AB Quantum Connect™ and AB Quantum Sync™ - enable users to quickly connect to other AB-enabled devices and sync gun profiles between them in seconds, as well as back those profiles up to an encrypted server for peace of mind and easy restoration. The new platform automatically saves changes made to rifle profiles and updates connected devices without the user needing to do anything. For competitors or hunters, AB Quantum™ includes customizable Range and Multi-Target tables. This allows users to lay out the displayed information to exactly what they need to hit their target. After creating a range or target card, it can easily be shared via email. Built with the future in mind, the new AB Quantum™ platform allows for continuous innovation. At launch the following new features will be available: • AB Quantum™ User Interface - Take control of ballistic data and find solutions with ease using the new layout designed with one-handed operation in mind. • New Bluetooth® Device Manager - Find and connect AB Bluetooth® devices quickly and send data between devices using AB Quantum Connect™. • AB Quantum Sync™ - User gun profiles are automatically uploaded to an encrypted server to allow easy access for other devices and backup, providing peace of mind and security. • Customizable Range Card and Target Card Modes - The new expandable and customizable range and target card modes allow users to select what data to see for each Range or Target. Use the share function to send range and data cards in just seconds. • New Reticle Library - The AB Reticle library is hosted online and updates in AB Quantum™ automatically, providing users with up-to-date solution drawing for their favorite rifle scopes. • Improved Truing Interface - Easy to access ballistic truing features without leaving solution screens. • Chronograph Integration - Connect Bluetooth®-enabled chronographs - such as the Optex Systems SpeedTracker™ - directly to the app and save the velocity data to rifle profiles.
Sierra Reloading Manual v6.0
Access comprehensive reloading data for rifle and handgun cartridges. Features include powder weight calculators, detailed bullet information, cartridge history, and ballistic data. Offers both free sample data and a subscription for full access to extensive reloading information.
- Reloading powder weight calculator
- Cartridge history
- Bullet details
- Exterior ballistic data
- Dark/light mode viewing
- Reloading FAQs
Read full descriptionHide full description
Sierra Bullets Reloading Manual V6.0 of Rifle and Handgun Reloading Data. The development of this reloading manual app has brought exciting, new changes. Many new Sierra bullets have been added, with new cartridge types and powders. Sierra built its own Pressure Testing Lab to quantify the new loading data found within the app. App features include: Reloading powder weight calculator for all the cartridges found in Sierra Bullet's paper manual. History about most included cartridges. Bullet details for all of Sierra Bullet's current and many older bullets. Exterior Ballistic paper. Technical contact information. Answers to Frequently asked questions about reloading. Firearm care and maintenance information. Ability to view in dark or light mode for easy reading. The free version has a reduced amount of data so users may see a sample of how the program operates. A subscription in-app purchase includes more text for key sections of the app including The Bullets section, The Reloading Section, and the Ballistics section. The most important feature a subscription adds is the full set of current cartridge data for hundreds of cartridges. Sierra Bullets LLC is constantly adding more data as new bullets are developed, the app will be updated as new data is available. Sierra Bullets has been producing hard cover manuals for over 50 years but using an app allows more functionality for the user.
Screenshots
Verdict
The clearest difference is rating: AB Quantum at 4.7 against Sierra Reloading Manual v6.0's 3.0. AB Quantum also leads on ratings volume (2.9K vs 80) and review sentiment (45% vs 28%). Sierra Reloading Manual v6.0's advantage is iOS requirement (8.1 vs 16.0). On price, update cadence, ads and in-app purchases 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. AB Quantum sells 15 in-app purchases, starting at $2.99 per month and Sierra Reloading Manual v6.0 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
AB Quantum holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: AB Quantum has 2.9K ratings behind it against 80, so its average is the more settled of the two. Written reviews point the same way: 45% of AB Quantum's written reviews are positive against 28% of Sierra Reloading Manual v6.0's.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.
| Parameter | AB Quantum | Sierra Reloading Manual v6.0 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.9K ratings) — better | 3.0 (80 ratings) |
| Positive reviews | 45.0% of reviews — better | 28.1% of reviews |
| Number of ratings | 2.9K — better | 80 |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #107 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 8.1 — better |
| Further details — not scored | ||
| Size | 466 MB | 58 MB |
| Age rating | 4+ | 12+ |
| Developer | Applied Ballistics | Sierra Bullets LLC |
Customer experience
AB Quantum
Sierra Reloading Manual v6.0
User reviews
AB Quantum
From 2.9K App Store ratingsWhat we love
- 🚀 Best ballistic app
- 👍 Accurate ballistic calculations
- 👍 Comprehensive features
- 👍 Great support
- 👍 Easy to use once set up
Room to improve
- 🐛 Buggy after updates
- 🐛 Connectivity issues with Kestrel
- 🐛 Glitches with user interface
- 👎 Difficult to navigate
- 👎 Outdated interface
Sierra Reloading Manual v6.0
From 80 App Store ratingsWhat we love
- 👍 Great information source
- 👍 Useful for reloading
- 👍 Convenient mobile format
- 👍 Good for standard and oddball calibers
- 👍 Free load data (initially)
Room to improve
- 🐛 Outdated data
- 🐛 Missing projectiles/cartridges
- 🐛 Dangerous/incorrect load data
- 🐛 App resets on screen rotate/switch
- 🐛 Cannot purchase subscription
Bugs and requests
AB Quantum
Reported bugs
4 issues- Bullet BC not retaining custom values
- Profiles disappearing after updates
- Atmospheric data not syncing correctly
- Ballistics calculations not matching real-world data
Requested features
5 requests- Apple Watch app
- More reticle options
- Metric unit support
- Backup and restore functionality
- Improved range card and target card features
Sierra Reloading Manual v6.0
Reported bugs
16 issues- Cannot purchase subscription
- Cannot sign up for account online
- Subscription restore errors
- App crashes on loading screen
- App resets to beginning between apps/screen rotation
Show 11 moreShow fewer
- Back buttons non-functional
- Cannot activate subscription on second device
- Cannot restore subscription on iPhone
- App won't open after purchase
- Error verifying purchase
- App glitched and charged twice
- Listed velocities are off
- Rifle data missing
- Data is incorrect/dangerous
- App not updated for a year
- App not updated for years
Requested features
23 requests- Update app regularly
- Add missing bullets and cartridges
- Update load data
- Allow phone rotation without reset
- Remember user's position in the app
Show 18 moreShow fewer
- Add new powders
- Add 6.5/.264 140gr TGK data for .264 win mag
- Make BC info easier to find
- Allow purchase of subscription
- Allow account sign-up online
- Add favorites list
- Make newly added calibers obvious
- Add dark mode
- Add advanced analytics dashboard
- Add Windows computer support
- Add ballistic drop information
- Add G2 and G7 data
- Redesign UI
- Improve navigation
- Add print out option
- Add field locking
- Add bookmark feature
- Add dropdown for powder selection
In-app purchases
AB Quantum
- Elite Monthly$2.991 Month
- Professional Monthly$3.991 Month
- Elite Annual$19.991 Year
Show 1 moreShow fewer
- Professional Annual3 Days trial$29.991 Year
- Custom Drag Model (CDM) for Berger 0.264cal 140gr Target Hybrid$1.99
- Custom Drag Model (CDM) for Sierra 0.308cal 175gr MatchKing$1.99
- Custom Drag Model (CDM) for Hornady 0.264cal 140gr ELD Match$1.99
Show 8 moreShow fewer
- Custom Drag Model (CDM) for Hornady 0.264cal 143gr ELD X$1.99
- Custom Drag Model (CDM) for Hornady 0.264cal 147gr ELD Match$1.99
- AB Caliber 0.224 CDMs$9.99
- AB Caliber 0.243 CDMs$9.99
- AB Caliber 0.264 CDMs$9.99
- AB Caliber 0.284 CDMs$9.99
- AB Caliber 0.308 CDMs$9.99
- AB Caliber 0.338 CDMs$9.99
Sierra Reloading Manual v6.0
- Annual Subscription$4.99
Questions
Is AB Quantum free?
Is Sierra Reloading Manual v6.0 free?
Which has better reviews, AB Quantum or Sierra Reloading Manual v6.0?
Do AB Quantum or Sierra Reloading Manual v6.0 have ads?
Which is updated more often, AB Quantum or Sierra Reloading Manual v6.0?
Other comparisons















