Based on the users' reviews of the "Flip Merge" app, here are three cons and pros in English, limited to 15 words each: **Cons:** 1. "App kept crashing and freezing, frustrating experience." - User frustration with app stability. 2. "NoUndo feature is annoying, lost work due to accidental changes." - Users are unhappy with the lack of an undo feature. 3. "App requires too much storage space, not suitable for limited device users." - Some users complain that the app takes up too much space. **Pros:** 1. "App is very intuitive and easy to use, even for a novice." - Users praise the app's ease of use. 2. "Fantastic tool for reorganizing and reformatting files, saves time greatly." - Users appreciate the app's ability to streamline file management. 3. "App is a game-changer for productivity, love the customizable layout options." - Some users find the app highly useful and enjoyable to use.