diff --git a/src/i18n/strings/en_US.json b/src/i18n/strings/en_US.json
index 6926ff4b84..0bb2d786f0 100644
--- a/src/i18n/strings/en_US.json
+++ b/src/i18n/strings/en_US.json
@@ -24,5 +24,9 @@
     "Download Completed": "Download Completed",
     "Unable to load config file: please refresh the page to try again.": "Unable to load config file: please refresh the page to try again.",
     "Your Element configuration contains invalid JSON. Please correct the problem and reload the page.": "Your Element configuration contains invalid JSON. Please correct the problem and reload the page.",
-    "Your Element is misconfigured": "Your Element is misconfigured"
+    "Your Element is misconfigured": "Your Element is misconfigured",
+    "Decentralised, encrypted chat & collaboration powered by $matrixLogo": "Decentralised, encrypted chat & collaboration powered by $matrixLogo",
+    "Use %(brand)s on mobile": "Use %(brand)s on mobile",
+    "%(appName)s: %(browserName)s on %(osName)s": "%(appName)s: %(browserName)s on %(osName)s",
+    "%(brand)s Desktop: %(platformName)s": "%(brand)s Desktop: %(platformName)s"
 }
diff --git a/src/i18n/strings/ja.json b/src/i18n/strings/ja.json
index f544c8b1cd..8e71f803ce 100644
--- a/src/i18n/strings/ja.json
+++ b/src/i18n/strings/ja.json
@@ -6,7 +6,7 @@
     "Invalid configuration: no default server specified.": "不正な設定：デフォルトのサーバーが設定されていません。",
     "Sign In": "サインイン",
     "Create Account": "アカウントを作成",
-    "Explore rooms": "ルームを探索",
+    "Explore rooms": "ルームを探す",
     "The message from the parser is: %(message)s": "パーサーのメッセージ：%(message)s",
     "Invalid JSON": "不正なJSON",
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "不正な設定：default_server_config、default_server_name、またはdefault_hs_urlのいずれか一つのみを指定できます。",