Products & Solutions



The slick tracer for contactless transactions

  • Discreetly sniff into contactless transactions in the field without disrupting daily business
  • Controlled via smartphone app or web interface
  • Free lifetime software updates
  • Capture and analyze digital & analog data
  • EMV translator for detailed analysis of payment transactions in Application Layer
  • Command-line tools & remote API web interface
  • Use Cases
  • Downloads
  • Videos
  • Accessories

TraceCase is the small and handy contactless spy tool for NFC sniffing discreetly into transactions under real-life conditions. The powerful TraceCase software allows analyzing and debugging in order to create a reliable NFC ecosystem.

Together with TraceCase Toolbox the user receives a command-line based control interface to operate TraceCase remotely. This facilitates the integration into an existing test environment.


Download the App for free

Download and test the latest version of our TraceCase App including an embedded test session of a typical payment transaction. TraceCase is available in the Apple App Store and for Android devices from Google Play:

To get your hands on our free of charge Windows based software 'TraceCase Viewer', please get in touch with our sales team, who is happy to help you out:

Contact Sales

Who is it for?

Application developers, consultants & test engineers of:

  • Manufacturers of mobile devices and chipsets
  • Manufacturers of POS terminals and ATMs
  • Test houses

Providers of test services and solutions in the areas of:

  • Mobile payment
  • Access control
  • Public transport


Small and mobile for everyday use.


Capture data without disrupting the daily business. 


Location, date, & time are clearly assigned to data.

Powerful for analyzing in-house or by a third party:
  • Comprehensive and reliable software.
  • Unique: visualizing and analyzing digital and analog signals.
  • EMV translator: detailed analysis of payment transactions in Application Layer.
  • Ideally suited to identify technical issues.

TraceCase Fit

TraceCase is also available as TraceCase Fit - a tailor-made test solution hidden in a smartphone case for iPhone 12 Pro Max, iPhone 11, iPhone X, iPhone 8/Pro, and Samsung S8. For all other form factors, please feel free to get in touch with our Sales Team.


Watch Movie TraceCase vs TraceCase Fit

Perfectly equipped for smartwatches
  • Allows discreet sniffing of payment transactions.
  • Ideally suited for Apple Watch and others.
  • Offers the same testing scope as our antennas for cards & phones.
  • No compromises on comfort or functions.

User Manuals


Operating instructions for TraceCase, the discreet tracer for contactless transactions.

Download Manual

TraceCase App

This user manual teaches you how to use the TraceCase smartphone app with ease.

Download Manual

TraceCase Toolbox & API

Command-line tools and web interface for TraceCase automation.

Download Manual

TraceCase Analog Trigger

Use TraceCase for troubleshooting in NFC development.

Download Manual

TraceCase Viewer

User manual TraceCase Viewer, visualization & analysis software for analog and digital signals.

Download Manual

Demo Session- Example File

With this demo session you can use all features in the free app and in the TraceCase Viewer.

Download Demo File

Fact Sheets


Fact sheet for TraceCase, the discreet tracer for contactless transactions.

Download Brochure

TraceCase Toolbox

Fact sheet TraceCase Toolbox, the command-line tools for TraceCase automation.

Download Brochure

TraceCase Fit

Fact sheet TraceCase Fit, a tailor-made test solution hidden in a smartphone case.

Download Brochure

Walkthrough TraceCase App

TraceCase app controls the mini NFC sniffer for taking captures in the field  - or on your desk. This webinar is a walkthrough of  the complete TraceCase App for both, Android and iOS: With this step-by-step explanation you will get all you need to master your next NFC captures.

How to Read and Understand NFC Captures - Webinar Replay!

See how the TraceCase Viewer software helps to master even long traces. Quickly check signal behavior with the built-in Analog Scope. Benefit from its verification feature for your measurements against NFC Forum specifications.

How to Use TraceCase without App!

See how the TraceCase web interface helps you to work with TraceCase directly on your PC, Sometimes the app is not possible to use. But this is no reason to worry! Watch the video and simply start tracing with your PC!



Meet TraceCase, the discreet tracer for identifying both – digital and analog signals in NFC communication in the field.

How to Find Car Door NFC Errors?

What happens when you can't unlock your car because of a problem in the NFC between your phone and the car door? And what is all has to do with analoge tracing?

Quality Analyzer

With the Analyzer feature of the TraceCase App 2 you can immediately see the quality of every single trace, right where the magic happened.


Check out the TraceCase webinar as VoD and learn from our experts Swantje Missfeldt & Andreas Schreckenberg the 6 highlights that will make you love NFC tracing.

Undercover Tracing

Ever wondered how you can trace your data without anyone noticing it? See how to perform undercover tracing in the field.

Capture and Replay

Capture the real-time communication with TraceCase, send the data directly to your lab to simulate the transaction and quickly fix the errors.

Position the TraceCase Antenna

You’re using TraceCase to sniff into transactions in the field. This short instruction will show you how to position the antennas correctly to achieve the best results.

Witness it live

How about we give you a glimpse behind the curtain in form of a personal live demo? Just get in touch with one of our experts and we will make it happen: smissfeldt(at), aschreckenberg(at)

Contact us!

If you cannot find what you are looking for, leave us a note and we will get back to you as soon as possible.