YP Auto Liker is a Chrome extension developed by Kenjiro Yagi. This free tool is designed to automatically like all your friends' photos and check-ins on various social media platforms. Additionally, it has the capability to mark your friends' reviews as useful.

With YP Auto Liker, you can conveniently show support and appreciation for your friends' online activities without the need for manual interaction. This extension streamlines the process by automatically liking their photos and check-ins, saving you time and effort.

Furthermore, the ability to mark your friends' reviews as useful can be particularly beneficial in platforms where reviews play a significant role. This feature allows you to help boost the visibility and credibility of your friends' reviews.

YP Auto Liker is a handy tool for those who want to enhance their social media interactions. Best of all, it is completely free to use. It's worth noting that the developer, Kenjiro Yagi, emphasizes that no data is collected by the extension.

For any issues or concerns, you can reach out to Kenjiro Yagi on Twitter at @kenjitweet or contact him directly for prompt assistance.