diff --git a/static/articles/attestation-compatibility-guide.html b/static/articles/attestation-compatibility-guide.html
index f70a566e..e4d0fd30 100644
--- a/static/articles/attestation-compatibility-guide.html
+++ b/static/articles/attestation-compatibility-guide.html
@@ -151,7 +151,7 @@
                     <li><a href="https://play.google.com/store/apps/details?id=com.mcdonalds.mobileapp">McDonald's</a> (International app used for many but not all countries not including the US)</li>
                     <li><a href="https://play.google.com/store/apps/details?id=com.swissquote.android">Swissquote</a></li>
                     <li><a href="https://play.google.com/store/apps/details?id=com.swisssign.swissid.mobile">SwissID</a></li>
-                    <li><a href="https://play.google.com/store/apps/details?id=de.tk.tkapp">TK-App</a></li>
+                    <li><a href="https://play.google.com/store/apps/details?id=de.tk.tkapp">TK-App</a> (German health insurance app which uses it for fingerprint login)</li>
                     <li><a href="https://play.google.com/store/apps/details?id=it.pagopa.io.app">IO</a> (Italian government app which uses it for the digital wallet feature)</li>
                 </ul>