Thumbnail Sticker is an iPhone app that allows you to create amazing Insta Story Stickers using your YouTube video thumbnails. Developed by Edouard Barbier, this app is a great tool for YouTubers and Instagram users who want to make their content more engaging.

The app is easy to use. You can connect with your YouTube account, select any video, customize your thumbnail sticker, copy it to your clipboard, and paste it into your Instagram story. You can resize and position the sticker as per your preference.

This app is perfect for YouTubers who want to promote their videos in a new and engaging way, or for anyone who wants to add something unique to their Insta stories. The developer welcomes feedback and suggestions, and you can contact him through the app, via email, or follow him on Instagram.

Overall, Thumbnail Stickers for YouTube is a great app for anyone looking to make their social media content more engaging and unique.