diff --git a/docs/Instruction/week05.md b/docs/Instruction/week05.md
index b85778b8d9d35af49ef0b23fef8ca1057b133d62..d1a2f39458dc4ca287b9039dd1045ebf4a7c70ae 100644
--- a/docs/Instruction/week05.md
+++ b/docs/Instruction/week05.md
@@ -144,6 +144,7 @@ M3_hole_test
         - [Scaniverse](https://apps.apple.com/us/app/scaniverse-lidar-3d-scanner/id1541433223)
         - [Polycam](https://apps.apple.com/us/app/polycam-lidar-3d-scanner/id1532482376)
         - [3D Scanner APP](https://apps.apple.com/us/app/3d-scanner-app/id1419913995)
+        - [WIDAR](https://apps.apple.com/us/app/widar-3d-scan-ar/id1574012258)
 
     - TrueDepth Sensor
         - [STL Maker](https://apps.apple.com/jp/app/stl-maker/id1444230836) @3,060