AB Quantum vs CQS Performance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AB Quantum
This advanced ballistics solver and profile management tool offers a user-friendly interface for long-range shooting. It integrates with Bluetooth devices, syncs gun profiles, and provides customizable range cards for enhanced accuracy in the field or at competitions.
- Advanced ballistics solver
- Bluetooth device integration
- Gun profile syncing and backup
- Customizable range and target cards
- Reticle library
- Chronograph integration
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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.
CQS Performance
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CQS Performance digitizes your Close Quarter Survival training. Replace your paper logbook with a powerful app that tracks every drill, round, and personal best across all your weapons. CQS Performance is a subscription-based app. A free 14-day trial is included with full access; after the trial, an active CQS Pro subscription is required to use the app's features. Subscription details: • CQS Pro Monthly — auto-renewing subscription • Length: 1 month • Price: $7.99 USD/month (or local equivalent) - Country dependant. • 14-day free trial for first-time subscribers • Subscription auto-renews unless cancelled at least 24 hours before the end of the current period • Payment is charged to your Apple ID account • Manage or cancel anytime in Settings → Apple ID → Subscriptions Terms of Use (EULA): https://www.cqsperformance.com/terms Privacy Policy: https://www.cqsperformance.com/privacy Features: Log drills for Baseline, Dynamic & Defensive courses Track personal bests and Survival Index score Manage your armory — weapons, setups & ammo inventory Detailed analytics with performance charts 7-tier ranking system from Novice to Master Capability radar across 6 skill axes Par timer with random delay and split times Apex Selfie — overlay your stats on range photos Works fully offline — syncs when connected
Screenshots
Verdict
The clearest difference is chart position: AB Quantum at #101 against CQS Performance's unranked. 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 4 in-app purchases, starting at $2.99 per month and CQS Performance sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
AB Quantum ships an update fortnightly, CQS Performance every 2 weeks. Both last shipped on November 13, 2026.
| Parameter | AB Quantum | CQS Performance |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3K ratings) — better | — |
| Positive reviews | 44.9% of reviews | — |
| Number of ratings | 3K — better | — |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #101 — better | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 474 MB | 47 MB |
| Age rating | 17+ | 17+ |
| Developer | Applied Ballistics | CQS Performance |
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
CQS Performance
Not enough reviews yet to summarise bugs or requests.
In-app purchases
AB Quantum
- Elite Monthly$2.991 Month
- Professional Monthly$3.991 Month
- Elite Annual$19.991 Year
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- Professional Annual3 Days trial$29.991 Year
CQS Performance
- CQS Pro Monthly14 Days trial$7.991 Month
- CQS Pro Annual14 Days trial$79.991 Year
Questions
Is AB Quantum free?
Is CQS Performance free?
Do AB Quantum or CQS Performance have ads?
Which is updated more often, AB Quantum or CQS Performance?
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