Based on the user reviews, I've summarized three cons and three pros of the app "Kart-io": **Cons:** 1. Users have reported issues with app crashes and freezing, causing frustration and loss of work. 2. Limited functionality and customization options, leading to disappointment for some users. 3. Some users have experienced difficulties with collaboration and commenting, citing errors and delays. **Pros:** 1. Users praise the app's simplicity and user-friendly interface, making it easy to use. 2. Many have commended the app's clean design and minimalistic approach, reducing visual clutter. 3. Users have reported productive and smooth workflows, allowing them to stay organized and focused. Please note that these summaries are based on a limited number of reviews and might not reflect the full range of opinions on the app.