Back

Guide

How to get an API key for "Read aloud" & how to install this as an app on your phone.

1. Get an API key for text-to-speech

Only needed if you want the higher-quality Google/Azure voices in "Read aloud". If you're using the "Browser (free)" voice, you can skip this step.

  1. Go to console.cloud.google.com and sign in with a Google account.
  2. Create a new project (or pick an existing one) from the top bar.
  3. (You'll need to enter a Visa/Mastercard to activate billing.)
  4. Go to APIs & Services → Libraryfind Cloud Text-to-Speech APIand click Enable
  5. Go to APIs & Services → Credentials → Create Credentials → API key
  6. Copy the key and paste it into the Google TTS API key field in the app's "Voice settings".

Google Cloud includes a limited free tier (around 1 million characters/month) for Text-to-Speech; usage beyond that is billed to the linked Visa/Mastercard.

  1. Go to portal.azure.com and sign in with a Microsoft account.
  2. Click Create a resourcethen find and select Speech (Azure AI Speech).
  3. (You'll need to enter a Visa/Mastercard to activate billing.)
  4. Give it a name, choose a Region (e.g. East US) and a pricing tier (free/paid).
  5. Once it's created, open the resource → go to Keys and Endpoint
  6. Copy either key, along with the Region, and paste them into the Azure Subscription key and Azure Region fields in the app's "Voice settings".

The Region field needs the short, no-space form, e.g. eastus.

2. Install as an app on your phone

Once installed, the app gets its own icon on your home screen and opens like a regular app.

  1. Open this link in Safari or Chrome.
  2. Tap the Share button (square with an arrow pointing up) in the toolbar.
  3. Scroll down and choose Add to Home Screen
  4. Tap Add in the top corner — the app icon appears on your home screen.
  1. Open this link in Chrome/Edge
  2. Tap the three-dot menu (⋮) in the top right, near the address bar.
  3. Choose Install app (or "Add to Home screen").
  4. Confirm — the app icon appears on your home screen.