RUNNii is a free Android app developed by RUNNii Tech. It is a lifestyle app that falls under the Health & Fitness subcategory. The app allows users to find running buddies and start their running journey. Users can match buddies instantly without the need for a Line or Facebook group. The app is designed to motivate users by allowing them to share their running records and achievements with their buddies.

RUNNii has several features that make it unique. Users can engage in online 1-on-1 matches for a 5-day running plan. They can record their running achievements and match with friends. The app allows users to set their goals and interests to match with the perfect buddy. Users can also enjoy funny and cute stickers and an energy battery that indicates their activity. They can share their footprints by editing achievements.

Overall, RUNNii is an excellent app for those who love running and want to find buddies to motivate them. It is easy to use and offers a variety of features that make it stand out. If you have any questions or suggestions, the developers are open to feedback and can be reached through their Facebook forum or news page.