Comparison

CTS Assistant vs AirKey

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CTS Assistant

Features
Read full description

CTS Assistant is a closing cost app that provides you with the tools you need for your next listing and when meeting with prospective buyers. It is designed for Real Estate Professionals with calculators, customizable marketing materials and quick access to generate buyer estimates and seller net sheets. Key features include: Helpful Calculators: Monthly affordability, renting vs. buying, loan qualifier and sell to net. Buyer and Seller Net Sheets: Easily generate net sheets to understand the costs of buying or selling a home. Save Net Sheets and Estimates: Sort through and access previous net sheets and estimates. Easily Share Generated Net Sheets: Quickly generate net sheets to print or share via email or text. Fully Customized Marketing Materials: Create custom marketing materials for buyers or sellers. Training Tutorials to Get Started: Learn how to get started and utilize the app to its full potential.

About

AirKey

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
Read full description

AirKey helps customers verify their identity by simply tapping their AirKey-enabled card to their phone. With the AirKey app, you can learn more about how the AirKey technology works and try it out. All you need is an AirKey-enabled card to get started (just look for the key symbol on the back of your card to determine if your card is AirKey-enabled). What else can you do on the AirKey app? For certain transactions, you can • Review transaction details such as the merchant name, transaction amount, and card details to confirm its legitimacy and • Tap your AirKey-enabled card to your phone to prove the card is in your possession - after successfully authenticating, you continue your shopping experience Internet access is needed to use the AirKey app. Check with your Internet service provider for details of specific fees and charges. Service outages may occur. Features may not be available to all customers. Actual experiences may differ from those depicted. Additional terms and limitations apply.

Screenshots

CTS Assistant3 screens
AirKey3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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

Scorecard1 real difference · 9 level
CTS Assistant versus AirKey: the parameters behind the verdict, then further details
ParameterCTS AssistantAirKey
PriceFreeFree
Rating—2.3 (87 ratings) — better
Positive reviews—29.8% of reviews
Number of ratings—87 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size124 MB58 MB
Age rating4+4+
DeveloperWestern Auxiliary CorporationCapital One Services, LLC

Bugs and requests

CTS Assistant

Not enough reviews yet to summarise bugs or requests.

AirKey

Reported bugs

10 issues
  • Stuck in demo mode
  • App does not work overseas
  • Card scanning/tapping fails
  • Verification process fails
  • App is glitchy
Show 5 more
  • Does not communicate with payment site
  • Requires switching country settings
  • Not functional in certain regions (UK, South Korea, Asia)
  • Transaction verification fails
  • Requires Safari and another app

Requested features

8 requests
  • Fix the demo loop issue
  • Improve international functionality
  • Provide alternative verification methods
  • Offer better customer support
  • Integrate with the main Capital One app
Show 3 more
  • Fix the card scanning/tapping functionality
  • Ensure app works outside the US
  • Make the verification process less cumbersome

In-app purchases

None

CTS Assistant

No in-app purchases

None

AirKey

No in-app purchases

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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