Get started
Vox Liberata is a Mac app. It turns the audiobooks you bought on Audible into files you keep. Before you install it, choose where your books will live.
Choose a setup
Vox asks this first. You can switch later in Settings › Storage. Switching does not move or delete books you already have.
Books go to storage you own on the internet. Listen on any phone or computer, anywhere.
- Needs a free Convex account and a storage bucket (Backblaze B2 or S3-compatible)
- Storage on Backblaze costs about $3.96 a month for 1,000 books (estimate)
- Manage your Library in the browser
Books stay in a folder on this Mac, an external drive or a NAS. Nothing to pay.
- No accounts besides Audible
- Listen on this Mac. The phone app comes later.
- Manage your books in the Vox Liberata window
| Cloud Library | On your computer | |
|---|---|---|
| Listen on your phone | Yes, in your own web app | Not yet |
| Accounts besides Audible | Convex, and Backblaze B2 or other S3 storage | None |
| Monthly cost | Backblaze storage. About $3.96 for 1,000 books. | Nothing |
| Your Mac must be on | To add books | To add books and to listen |
| Setup takes | About 20 minutes | About 5 minutes |
What you need
| What | Why |
|---|---|
| A Mac with macOS 12 or later | Vox runs on it and converts your books. |
| Your Audible account | Vox lists the books you have bought. Without Audible, Vox converts AAX or AAXC files you already have. |
| Room for your books | About 58 MB for each hour of audio, so a 10 hour book is about 580 MB. |
For a Cloud Library you also need:
| What | Why |
|---|---|
| A free Convex account | Runs your Library backend: sign-in, the list of books and where you are in each. It also serves your web app. |
| A Backblaze B2 account with a payment card | Holds your books. Any other S3-compatible storage works too, including a NAS reachable from the internet. |
What it costs
On your computer costs nothing.
A Cloud Library costs what Backblaze charges for storage. The Library backend and web app use Convex's free plan. Backblaze bills pay as you go, monthly. Its prices, checked on 5 Oct 2026 at backblaze.com:
| Backblaze B2 | Price |
|---|---|
| Storage | $6.95 per TB a month. The first 10 GB are always free. |
| Downloads | Free up to 3 times what you store each month, then $0.01 per GB. |
| Requests | Free. No minimum file size and no minimum storage time. |
Estimates for typical 10 hour books:
| Library | Stored | A month |
|---|---|---|
| 100 books | about 58 GB | $0.33 |
| 1,000 books | about 580 GB | $3.96 |
- Add a payment card to your Backblaze account.
- Open Caps & Alerts and set the daily caps to storage $0.10 a day (about 440 GB) and download $0.50 a day (about 51 GB).
New Backblaze accounts start with every cap at $0, so downloads stop after 1 GB a day and your phone cannot fetch more books until midnight UTC.
Install Vox
- Open the disk image you downloaded.
- Drag Vox Liberata to Applications.
- Open Vox Liberata from Applications. The setup window opens at Choose a setup.
Vox is signed with a Developer ID but is not notarised yet, so macOS may warn you the first time you open it.
- In Applications, right-click (or Control-click) Vox Liberata and choose Open.
- Click Open in the message that appears.
If there is no Open button, go to System Settings › Privacy & Security, scroll down and click Open Anyway next to Vox Liberata. macOS remembers your choice.
Then follow the guide for your setup.