If there were a mobile app that could float above other apps and read the visible content out loud, where would it fit into your life?

Validating an app idea: would you use this?

Hey everyone,

I’m exploring an idea for a mobile app and would love honest feedback.

The app would let you select text inside other apps and have it read out loud, so you can keep listening while walking, commuting, cooking, cleaning, etc.

The reason I’m thinking about this is that I was walking while trying to read about Bitcoin mining on my phone. I was curious in that exact moment, but reading while walking was annoying. Saving it for later didn’t feel ideal because the motivation might disappear by the time I got home.

I know there are audiobooks, text-to-speech tools, screen readers, and read-it-later apps, but I’m curious whether a simple “select text → listen now” workflow would be useful for everyday reading across apps.

A few questions:

1. Do you ever want to read something on your phone but the timing makes reading inconvenient?

2. What kind of content would you want to listen to instead of read? Articles, Reddit posts, books, PDFs, documentation, newsletters, something else?

3. Do you already use any text-to-speech or read-it-later tools? If yes, what’s missing or annoying about them?

4. Would you use an app like this if it worked reliably across other apps?

5. What would stop you from using it? Privacy, voice quality, setup friction, price, or something else?

I’m not promoting anything, just trying to understand whether this is a real problem before building too much.

Would love honest feedback, especially if you think this is unnecessary or already solved.