Add "ente Auth" TOTP app (#2310)

Signed-off-by: Daniel Gray <dngray@privacyguides.org>
Signed-off-by: Freddy <freddy@privacyguides.org>

docs/multi-factor-authentication.md

@@ -89,13 +89,32 @@ Authenticator Apps implement a security standard adopted by the Internet Enginee
 
 We highly recommend that you use mobile TOTP apps instead of desktop alternatives as Android and iOS have better security and app isolation than most desktop operating systems.
 
+### ente Auth
+
+!!! recommendation
+
+    ![ente Auth logo](assets/img/multi-factor-authentication/ente-auth.png){ align=right }
+
+    **ente Auth** is a free and open-source app which stores and generates TOTP tokens on your mobile device. It can be used with an online account to backup and sync your tokens across your devices (and access them via a web interface) in a secure, end-to-end encrypted fashion. It can also be used offline on a single device with no account necessary.
+
+    [:octicons-home-16: Homepage](https://ente.io/auth){ .md-button .md-button--primary }
+    [:octicons-eye-16:](https://ente.io/privacy){ .card-link title="Privacy Policy" }
+    [:octicons-code-16:](https://github.com/ente-io/auth){ .card-link title="Source Code" }
+
+    ??? downloads
+
+        - [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=io.ente.auth)
+        - [:simple-appstore: App Store](https://apps.apple.com/us/app/ente-authenticator/id6444121398)
+        - [:simple-github: GitHub](https://github.com/ente-io/auth/releases)
+        - [:octicons-globe-16: Web](https://auth.ente.io)
+
 ### Aegis Authenticator (Android)
 
 !!! recommendation
 
     ![Aegis logo](assets/img/multi-factor-authentication/aegis.png){ align=right }
 
-    **Aegis Authenticator** is a free, secure and open-source app to manage your 2-step verification tokens for your online services.
+    **Aegis Authenticator** is a free and open-source app for Android to manage your 2-step verification tokens for your online services. Aegis Authenticator operates completely offline/locally, but includes the option to export your tokens for backup unlike many alternatives.
 
     [:octicons-home-16: Homepage](https://getaegis.app){ .md-button .md-button--primary }
     [:octicons-eye-16:](https://getaegis.app/aegis/privacy.html){ .card-link title="Privacy Policy" }

docs/tools.md

@@ -331,6 +331,7 @@ We [recommend](dns.md#recommended-providers) a number of encrypted DNS servers b
 
 - ![YubiKeys](assets/img/multi-factor-authentication/mini/yubico.svg){ .twemoji } [YubiKey](multi-factor-authentication.md#yubikey)
 - ![Nitrokey](assets/img/multi-factor-authentication/mini/nitrokey.svg){ .twemoji } [Nitrokey](multi-factor-authentication.md#nitrokey)
+- ![ente Auth logo](assets/img/multi-factor-authentication/ente-auth.png){ .twemoji } [ente Auth](multi-factor-authentication.md#ente-auth)
 - ![Aegis logo](assets/img/multi-factor-authentication/aegis.png){ .twemoji } [Aegis Authenticator (Android)](multi-factor-authentication.md#aegis-authenticator-android)
 
 </div>