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Little Vox FAQ
Audiobooks, Stories & Yoto

And if we don't, there's a real human at the bottom of this page who will.

Getting Started

What exactly is Little Vox?

Little Vox is an iPhone app that gets audio onto your child's Yoto player, without you needing to know anything about audio formats, file conversion, or Yoto's API. Pick something, tap send, done. There's no computer involved at any point.

It has two sides. Audiobooks sends a book to a Make Your Own card, either a free public-domain classic from the library built into the app, or an audio file you already own. Family Stories lets grandparents, parents, and anyone with a voice record personal stories for your child. The person recording needs no app at all, just a link and a tap.

What do I need to get started?

Just three things:

  • An iPhone
  • A Yoto player, a Make Your Own card, and a Yoto account
  • Something to send, pick a free classic from the built-in library, choose an audio file from Files or iCloud Drive, or record a story with your family

No subscription. No computer. And no Little Vox account. There's nothing to sign up for. You connect your Yoto account once so we can deliver to it, and that's the only login involved.

How do I get a book onto my Yoto?

It's four steps, and step four is basically just waiting:

  1. Open Little Vox on your iPhone
  2. Browse the free public-domain library, or choose an audio file of your own from Files or iCloud Drive
  3. Connect your Yoto account (once. It remembers)
  4. Tap "Send to Yoto" and let it do its thing

When it's done, open the Yoto app → Library → Playlists. Your book will be there waiting, cover art included.

Do I need a Yoto to use Little Vox at all?

To send anything to a card, yes. You'll need a Yoto player and a Make Your Own card. But Family Stories works standalone: you can collect recordings from family, keep them, and share them as ordinary audio files without any Yoto hardware at all.

If you're Yoto-curious, check them out here ↗. They make a genuinely lovely screen-free player for kids.

Supported Files

What audio formats does Little Vox support?

Pretty much everything you're likely to have:

M4B MP3 FLAC M4A AAC WAV OGG

If your file is in one of these, Little Vox can send it. Anything more exotic, or anything with copy protection on it, will need converting first.

Can I see what's already on my Yoto?

Yes. There's a Yoto Library tab that lists everything on your Yoto account, whether Little Vox put it there or not. You can see the whole collection at a glance and remove cards your child has outgrown, without switching over to the Yoto app.

How do I find something my child will actually like?

The catalogue is filtered by age, 0–5, 6–10, and 10–14, and grouped into themed shelves like Heroes & Virtue and Courageous Girls, so you can browse the way you would in a bookshop rather than guessing at a search box.

Search is there too, if you already know the title you want.

How big can a file be?

The limits here are Yoto's, not ours. A Make Your Own card allows:

  • 100 MB for any single track
  • 1 hour of running time for any single track
  • 100 tracks per card
  • 500 MB of audio across the whole card

Five hundred megabytes works out to roughly eight or nine hours of spoken word, which comfortably covers the large majority of children's audiobooks. A long classic can exceed it, in which case the usual approach is to split the book across two cards.

The one that catches people out is the one-hour-per-track rule, long chapters trip it well before they get anywhere near 100 MB. If an upload is refused and the file looks small enough, check the duration first.

Can I use Audible files (.aa or .aax)?

Not directly: Audible files are DRM-protected, which means only Audible's own apps can read them. This isn't a Little Vox limitation; it's Audible's design. We're not going to pretend otherwise.

The good news: there are excellent sources for DRM-free audiobooks that work perfectly:

  • Your local library via Libby/OverDrive, free MP3 downloads
  • Libro.fm: DRM-free downloads, great for indie bookshop supporters
  • Downpour: DRM-free purchases
  • Public domain classics: thousands of them, browsable for free right inside Little Vox
There are third-party tools such as ViWizard Audible Converter that claim to convert Audible files. We're aware they exist, but we don't endorse or recommend them, their legality and safety is something you'd need to evaluate for yourself.
CDs you've ripped yourself? Those work perfectly: MP3, FLAC, and M4A from your own collection are all fair game. Save them to iCloud Drive or Files on your phone and Little Vox can pick them up from there.

Under the Hood

What is Little Vox actually doing when it processes a file?

Quite a lot, actually. It's just very good at hiding it. When you tap "Send to Yoto," Little Vox reads your file's details, sorts out the cover art, works out the track structure, and uploads everything to your Yoto library through the same API the official Yoto app uses. Yoto then re-encodes the audio to its own specification on their end.

The bit worth knowing: your own audio files go straight from your phone to Yoto. They don't pass through us. That's not a marketing line, it's just how the upload works, the app requests an upload slot from Yoto and sends the file directly to it.

Think of Little Vox as a very clever middleman who knows exactly what Yoto wants, and speaks the language fluently.

How long does it take?

Most of the wait is the upload itself, so it depends on your connection more than anything else. On decent Wi-Fi a book is usually done in a few minutes. Yoto then takes another minute or two to process it on their end before it appears in your library.

You can put your phone down and get on with something else. You'll be told when it's finished.

Will it mess with my audio quality?

No. Yoto re-encodes what it receives to its own format, at a quality level suited to spoken word. For audiobooks and voice recordings, which is all we're dealing with here, the result is indistinguishable from the original at any normal listening volume.

Little Vox itself doesn't re-encode your file at all. It sends what you gave it and lets Yoto do the conversion, which means there's no extra generation of quality loss along the way.

Do I need an internet connection?

Yes, for anything that involves sending or fetching, browsing the free library, downloading a book, and uploading to Yoto all need a connection.

Recording a story is the exception. You can record offline and it's saved safely on your phone; it just waits until you're back online to go anywhere.

Family Stories

What is Family Stories?

Family Stories lets you, or anyone you invite, record a personal story or message for a child's Yoto. You create a story in Little Vox, send a link to your narrator (grandma, grandpa, anyone), and they record directly in their browser. No app, no account, no technical setup on their end.

When they're finished you get a notification, you listen to it, and it's ready to send to Yoto. Grandma's voice, on their Yoto, forever. 💜

You can also just record it yourself, right in the app, if the reader is already in the room.

Does the narrator need to download anything?

Nope. They tap the link, press record, tell a story. Works in any modern browser on a phone, tablet, or laptop. If your narrator can send a text message, they can record a Storybook.

Can they record in chapters?

Yes, the recording page supports multiple chapters. They can record chapter one today, come back tomorrow for chapter two, and Little Vox keeps it all organised. Recording links stay active for 7 days, and any in-progress recording is saved automatically so nothing gets lost if they close the tab by accident.

Do Family Stories cost anything?

No. Family Stories is completely free and unlimited: record as many as you like, invite as many people as you like, send them all to your Yoto.

We thought about charging for it and decided against it. A grandparent's voice isn't the thing to put behind a paywall.

Pricing

Can't I just do this myself without Little Vox?

Technically, yes. Yoto does let you upload your own audio and record stories directly in their app. But "technically possible" and "actually pleasant to do" are very different things.

Uploading your own audiobooks: Yoto's native upload has strict requirements, specific audio formats, a 100 MB limit per track, a one-hour limit per track, and a fiddly manual process for getting the track order right. Miss any of it and the upload fails, or your book lands on the player in a mess. Getting a full audiobook on there the hard way takes real effort and a fair amount of Googling.

Recording personal stories: Yoto's built-in recording feature is tucked away in the app and assumes you already know where to find it. If you want Grandma to record a bedtime story, you're asking her to download an app, create an account, navigate a menu that wasn't designed with her in mind, and figure it out, all before she's said a single word. Most grandmas give up before they get started. (Most parents do too, honestly.)

Little Vox makes both of these completely effortless:

  • Pick a book, from the free library or your own files, and Little Vox handles the cover art, the track structure, and the upload. Zero configuration, all from your phone.
  • Send Grandma a link. She taps record. That's it. No app, no account, no tech support call from you.
Little Vox exists because the alternative is a frustrating afternoon of troubleshooting. We've done the hard part so you don't have to.

How much does Little Vox cost?

The app is free. No subscription, no renewal, no "we're changing our pricing model" email in 18 months.

The only thing you can ever pay for is a Premium edition of a specific book, $1.49, one time. You buy the book, not the app, and you never have to buy one at all: the free version of every title is right there next to it.

What's free and what's paid?

Free, with no catch and no limit:

  • The whole public-domain library, thousands of classics, all of them free to send
  • Sending your own audio files to your Yoto
  • Unlimited Family Stories recordings
  • One-tap delivery to your Yoto account

$1.49 buys a Premium edition of one book: the same recording, professionally mastered so the volume is even and the hiss is gone, with the volunteer introduction trimmed off the front so the story starts when your child presses play.

It's per book, one time. There is no bundle, no subscription, and nothing that expires.

What if I get a new phone?

Your purchases follow your Apple Account, not your device. Install Little Vox on the new phone, tap Restore Purchases, and every Premium edition you've bought comes back.

There's no licence key to lose and no activation limit to run into. Apple handles all of it.

Privacy & Security

Does my audio go through your servers?

Depends which kind, and we'd rather be precise about it than give you a reassuring one-liner that isn't quite true.

  • Your own audio files: no. They go straight from your phone to Yoto. We never receive them.
  • Stories you record yourself in the app: no. They stay on your phone until you send them to Yoto.
  • Stories recorded by someone else from a link: yes. They have to. The recording is made in their browser, so it's uploaded to our storage in order to reach your phone at all. It's deleted once the story has been delivered.
  • Premium editions: yes, but that's our file, not yours, the mastered audio is prepared in advance and stored on our servers, and your phone downloads it the same way it would download anything else.

The full detail, including how long anything is kept, is in the Privacy Policy.

How are my Yoto login details stored?

They aren't. We never see them. You sign in on Yoto's own website, and what comes back to the app is an access token, not your password.

That token is kept in the iOS Keychain, the same encrypted store iOS uses for your saved passwords and payment cards. It stays on your phone and is never transmitted to us. You can disconnect at any time, which deletes it.

What data does Little Vox collect?

As little as possible:

  • No account. There's nothing to sign up for, so we don't hold your name, your email, or a password. The app identifies itself to our servers with a random string that isn't linked to you.
  • Purchases: handled entirely by Apple. We're told that a purchase is valid; we're not told who you are.
  • Family Stories: a recording link and the audio recorded against it, deleted after delivery. We don't ask for the child's name and don't need it.

Full details in our Privacy Policy: written by humans, not lawyers trying to obscure things.

Troubleshooting

My book isn't showing up in the Yoto app after upload.

Yoto occasionally takes a minute or two to index new content. Open the Yoto app, pull down to refresh, then tap Library → Playlists. Give it a moment.

Still nothing? In Little Vox, disconnect your Yoto account and connect it again. That usually does it.

The upload failed. Now what?

Try again first, uploads are the part most likely to be interrupted by a patchy connection, and a second attempt on Wi-Fi fixes most of them.

If it fails again, the file is probably in a format Yoto won't take, or it's over one of the card limits. Converting it to MP3 with any free tool and re-importing sorts out the format case; if it's a size or length problem, see the question above about file limits.

Little Vox says my file is too large.

That's Yoto's 100 MB per-track limit, and the most common cause is a lossless file: FLAC and WAV are enormous compared to what they contain. Convert it to MP3 first and it'll shrink to a fraction of the size with no audible difference for spoken word.

If it's already an MP3 and still too big, the file is genuinely long and needs splitting into shorter tracks. See the file limits question for the full set of numbers.

The Storybook recording link isn't working for my narrator.

Recording links expire after 7 days. In Little Vox, find the story and create a fresh link. It comes with all the details pre-filled, ready to send again. Easy.

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Still stuck? We actually read our emails.

We're a small team, which means when you email us, a real person reads it and writes back. No support ticket queue, no chatbot, no "have you tried turning it off and on again" auto-reply.

✉️ Email support@littlevox.pro