# AB Quantum vs CQS Performance

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.

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.

## The numbers

| Metric | AB Quantum | CQS Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3K ratings)](https://appshunter.io/ios/app/ab-quantum/id785619104/reviews)** | — |
| Number of ratings | **3K** | — |
| Positive reviews | 44.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#101** | — |
| Size | 474 MB | 47 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Applied Ballistics](https://appshunter.io/developer/785619107) | [CQS Performance](https://appshunter.io/developer/1891590599) |

## What reviewers say

### AB Quantum

[App page](https://appshunter.io/ios/app/ab-quantum/id785619104)

**Currently charting:** #101 Top Grossing · Sports (US App Store)

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.

**Highlights:** Advanced ballistics solver, Bluetooth device integration, Gun profile syncing and backup, Customizable range and target cards, Reticle library, Chronograph integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Elite Monthly | $2.99 | per month |
| Professional Monthly | $3.99 | per month |
| Elite Annual | $19.99 | per year |
| Professional Annual | $29.99 | per year |

**What reviewers like**

- 🚀 Best ballistic app
- 👍 Accurate ballistic calculations
- 👍 Comprehensive features
- 👍 Great support
- 👍 Easy to use once set up

**What reviewers complain about**

- 🐛 Buggy after updates
- 🐛 Connectivity issues with Kestrel
- 🐛 Glitches with user interface
- 👎 Difficult to navigate
- 👎 Outdated interface

**Reported bugs**

- Bullet BC not retaining custom values
- Profiles disappearing after updates
- Atmospheric data not syncing correctly
- Ballistics calculations not matching real-world data

**Requested features**

- Apple Watch app
- More reticle options
- Metric unit support
- Backup and restore functionality
- Improved range card and target card features


### CQS Performance

[App page](https://appshunter.io/ios/app/cqs-performance/id6761808115)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CQS Pro Monthly | $7.99 | per month |
| CQS Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is AB Quantum free?

AB Quantum is free to download, with in-app purchases available.

### Is CQS Performance free?

CQS Performance is free to download, with in-app purchases available.

### Do AB Quantum or CQS Performance have ads?

Neither AB Quantum nor CQS Performance shows ads.

### Which is updated more often, AB Quantum or CQS Performance?

AB Quantum ships an update fortnightly, and CQS Performance every 2 weeks. Most recently, AB Quantum was updated on November 13, 2026 and CQS Performance on November 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*