diff --git a/notify.md b/notify.md
index 2c2d1c1..a0aa73e 100644
--- a/notify.md
+++ b/notify.md
@@ -492,4 +492,26 @@ export FEISHU_WEBHOOK='https://open.feishu.cn/open-apis/bot/v2/hook/xxxxxxxxxxxx
 export FEISHU_KEYWORD=acme
 
 acme.sh --set-notify --notify-hook feishu
+```
+
+## 16. Set notification for iOS Bark
+
+Send notification via Bark's API. The notification will be pushed to the specified pushover application.
+
+Download Bark from [App Store](https://apps.apple.com/cn/app/bark-%E7%BB%99%E4%BD%A0%E7%9A%84%E6%89%8B%E6%9C%BA%E5%8F%91%E6%8E%A8%E9%80%81/id1403753865).
+
+Open the app and get the API URL. It usually starts with "https://api.day.app/" and followed by a UUID of length 22. Set BARK_API_URL to the complete URL, which is in the format of "https://api.day.app/XXXXXXXXXXXXXXXXXXXXXX".
+
+You can also use your own API server. Please refer to <https://github.com/Finb/bark-server>.
+
+BARK_SOUND is an optional variable to set the sound of notification. Please refer to the app to get all available sounds.
+
+BARK_GROUP is the group name of the notifications, which can be shown in the notification center of iOS. 
+
+```bash
+export BARK_API_URL="https://api.day.app/XXXXXXXXXXXXXXXXXXXXXX"
+export BARK_SOUND="newmail"
+export BARK_GROUP=ACME
+
+acme.sh --set-notify --notify-hook bark
 ```
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