Based on the user reviews of the "Open Doors" app, here are three cons and pros in 15 words or less each: **Cons:** 1. "Not accurate caller ID in some cases, wrong numbers showing as unknown." 2. "Some fake calls and SMS can bypass the app's verification process." 3. "Too many ads and pop-ups disrupt the user experience." **Pros:** 1. "Accurate caller ID in most cases, helps identify telemarketing calls." 2. "Easy to use and install, minimal setup required for functionality." 3. "Provides additional features like call blocking and email verification." Please note that the pros and cons are based on a general analysis of the user reviews and may not represent the opinions of every user who has reviewed the app.