# CTS Assistant vs AirKey

The clearest difference is device support: CTS Assistant at 3 against AirKey's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | CTS Assistant | AirKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (87 ratings)](https://appshunter.io/ios/app/airkey/id6471775266/reviews)** |
| Number of ratings | — | **87** |
| Positive reviews | — | 29.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 124 MB | 58 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Western Auxiliary Corporation](https://appshunter.io/developer/1516545891) | [Capital One Services, LLC](https://appshunter.io/developer/339644101) |

## What reviewers say

### CTS Assistant

[App page](https://appshunter.io/ios/app/cts-assistant/id1516545892)

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

**In-app purchases:** none


### AirKey

[App page](https://appshunter.io/ios/app/airkey/id6471775266)

Verify your identity by tapping your AirKey-enabled card to your phone. Learn about the technology and review transaction details for secure purchases. Requires an AirKey-enabled card and internet access.

**Highlights:** Tap card to phone for verification, Review transaction details, Confirm card legitimacy, Secure shopping experience, Learn about AirKey technology

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Works great internationally
- 👍 Convenient for travel
- 💡 Cool authentication feature
- 🚀 Fast card reading
- 🔒 Provides security

**What reviewers complain about**

- 🐛 Constantly stuck in demo mode
- 🐛 Does not work overseas
- 🐛 Fails to scan/tap card
- 🐛 Useless for online purchases
- 🐛 No customer service/support

**Reported bugs**

- Stuck in demo mode
- App does not work overseas
- Card scanning/tapping fails
- Verification process fails
- App is glitchy

**Requested features**

- Fix the demo loop issue
- Improve international functionality
- Provide alternative verification methods
- Offer better customer support
- Integrate with the main Capital One app


## Frequently asked questions

### Is CTS Assistant free?

CTS Assistant is free to download, with no in-app purchases.

### Is AirKey free?

AirKey is free to download, with no in-app purchases.

### Do CTS Assistant or AirKey have ads?

Neither CTS Assistant nor AirKey shows ads.

### Which is updated more often, CTS Assistant or AirKey?

CTS Assistant ships an update every 3 weeks, and AirKey every 3 weeks. Most recently, CTS Assistant was updated on October 7, 2026 and AirKey on October 16, 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.*