Based on the users' reviews of the Swarm Undone app, here are three cons and pros in 15 words or less: **Cons:** 1. Many users find the app's interface unintuitive and frustrating to navigate. 2. Some users experience issues with location accuracy and inconsistent marker placement. 3. Few users have reported occasional crashes and freezes, leading to lost work. **Pros:** 1. Users appreciate the app's unique concept of merging notes and sketches for brainstorming. 2. Many praise the app's versatility, allowing creation of notes, to-do lists, and more. 3. Reviewers often comment on the app's beautiful design, making it a pleasure to use. (Note: These summaries are based on a general analysis of the user reviews and may not reflect every individual's experience with the app.)