diff --git a/Using-Mastodon/Apps.md b/Using-Mastodon/Apps.md
index 146a9f9e..8ebc9a2b 100644
--- a/Using-Mastodon/Apps.md
+++ b/Using-Mastodon/Apps.md
@@ -40,6 +40,7 @@ Some people have started working on apps for the Mastodon API. Here is a list of
 |Mustor<br />([iTunes](https://itunes.apple.com/us/app/mustor/id1229531204?l=zh&ls=1&mt=8))|N/A|[@darkcl@mastodon.cloud](https://mastodon.cloud/@darkcl)|
 |[Pawoo](https://pawoo.net/about)<br />([iTunes](https://itunes.apple.com/us/app/pawoo/id1229070679))|N/A|[@pixiv@pawoo.net](https://pawoo.net/users/pixiv)|
 |friends.nico<br />([iTunes](https://itunes.apple.com/us/app/friends-nico/id1230158182))|N/A|[@friends_nico@friends.nico](https://friends.nico/@friends_nico)|
+|Tootdon<br />([iTunes](https://itunes.apple.com/us/app/tootdon-for-mastodon/id1282283934))|N/A/|[@tootdon@mstdn.jp](https://mstdn.jp/@tootdon)|
 |Tootter<br />([iTunes](https://itunes.apple.com/us/app/id1229555793))|N/A|[@Tootter_for_Mastodon@mstdn.jp](https://mstdn.jp/@Tootter_for_Mastodon)|
 
 ## Alternative web apps