There are a few factors that could potentially contribute to the perception of poor voice quality.
The first thing to check is if the voice that you have set on the iOS Speechify app is one of the Premium voices. To learn how to change the voices, click here.
You can also try to switch to another Premium, Featured, or Cloned voice to check if it is also happening. If it is, try to double-check your internet connection. You can also try to restart the app by closing it and relaunching it, or try another internet connection. Premium voices require a good, strong, and stable internet connection as these voices are fetched from our servers into your device.
If the problem persists, drop us a message via WhatsApp, Chat, or Email under the Support section of your Profile on our app.