How to choose a bedtime story app: a parents' checklist

By Andrei Baciu

Co-founder of Wunderli and architect of its story engine

Updated 12 October 2026

A good bedtime story app shows no ads or purchase prompts during the story, shares no data for advertising, stops when the story ends and keeps playing with the screen off. Most of that shows in the App Store or Google Play listing, the rest on the first evening. Story length, languages, the age the stories are written for and whether your child should start them alone then decide between the apps that pass.

The checklist draws on the ICO's Children's code, the International Age Rating Coalition and the help pages Apple and Google publish for their stores, all opened on 12 October 2026. Further down we hold Wunderli to the same list, weak points included.

The checklist at a glance

The first five are the firm ones. The last four are about fit.

Ads and in-app purchases

A subscription or story packs are not a warning sign in themselves. What matters is where the purchase shows up: in your settings, or as an offer mid-story while your child listens.

Lock the phone down before the first evening. Apple's help page on turning off in-app purchases (Apple, 2026) gives the path: Settings, Screen Time, Apps and Websites, App Store, then set In-app Purchases to Blocked. It adds: "If you let children use your device, you can require a password for every purchase." On Android, Google's page on purchase verification (Google, 2026) says that "turning on purchase verification helps prevent unauthorised purchases on your device", with a password or biometrics.

Data and tracking: how to read the store's privacy section

On the App Store, the section is called App Privacy and sits on every product page. Apple's support article on privacy information (Apple, 2024) is clear that "the information is self-reported by the developer". Data Used to Track You is "data from the app that is linked with your data collected from other companies' apps, websites or offline properties, and used for ads or shared with a data broker". For a bedtime story app, that group should be empty. Data Linked to You, such as an email address, is normal if there is an account; check whether it is used for app functionality or advertising.

On Google Play, the section is called Data safety. Google's help page on the Data safety section (Google, 2026) explains that data is "collected" when "the developer uses their app to retrieve data off your device", and "shared" when it is "transferred to a third party". If an app says its security practices have been independently reviewed, Google notes that this "review does not verify the accuracy and completeness of the developer's Data safety section disclosure". Apps that let you create an account must offer a way to delete it and its data in the app.

So read both sections as the developer's own statement. A useful yardstick is the ICO's Children's code, published as Age appropriate design: a code of practice for online services (ICO, 2020). Among its standards: settings "must be 'high privacy' by default", profiling and geolocation switched off by default, and no "nudge techniques to lead or encourage children to provide unnecessary personal data". An app that only plays stories has no reason to ask for your location.

What happens after the last line

Start a story on the first evening, let it run to the end and stay for two minutes. If a second episode, a recommendation or music starts, look for the setting that stops it. A story app without that setting may suit the afternoon, but not bedtime.

Does the screen have to stay on?

Press the side button while the story plays. If the audio carries on with the screen locked, the phone can lie face down out of reach. If playback stops, or the app shows animation that invites your child to watch, listening has turned into watching.

Offline listening

Switch on aeroplane mode before the story starts. If saved stories still play, patchy Wi-Fi and car trips are covered, and no push notifications arrive mid-story. Creating or downloading a story often needs a connection; playing it should not.

Length, languages and language level

Length. Look for an app that offers more than one length and shows the duration before you press play. Your child then knows roughly when the story will end.

Languages. If your child is growing up with more than one language, check which languages the stories themselves come in, beyond the menus. An adjustable language level helps when your child understands one language better than another.

Who the content is for and how it is checked

The age rating in the store is a starting point. Some stores take their ratings from the International Age Rating Coalition. According to IARC (2026), the developer completes a questionnaire, and IARC assigns an age rating, content descriptors and "Interactive Elements". These give "upfront notice" of purchases, contact with other users, location sharing and internet access. A rating describes content and features, not whether the stories suit your child.

So look for three things: an age range for the stories themselves, a page on the developer's website that explains how stories are made and checked, and a company you can contact. Then listen to the first story yourself, all the way through, before your child hears one alone.

Can your child start it alone?

There is no right answer here, only a choice. If the story plays on your phone or tablet, starting it is up to you, and the device stays in the room. If your child should start and stop stories completely alone, a box is built for that; our comparison of Toniebox vs Yoto goes through two of them.

How Wunderli answers the checklist

How it works: a parent shapes the characters, the world and the mood from their child's ideas in six steps, and Wunderli writes the story and narrates it as an audio play. Details are on How Wunderli works and child safety; the Toniebox alternative and Yoto alternative pages compare Wunderli with each box.

Listen to a sample

This recording is a sample of how a Wunderli story sounds. It is not tied to anything else on this page.

Other options for the evening

Toniebox. On its How the Toniebox works page (tonies, 2026), tonies says that "after a simple setup, children can use the Toniebox on their own". Once it is set up and the Tonies are downloaded, tonies says it doesn't need Wi-Fi, except for audio-drop Tonies that update with new content every day.

Yoto. Yoto sums up its players on its UK homepage (Yoto, 2026) as "Card in. Play begins." It says the Yoto Mini and Player "are suitable for children 3 years and up", and that a player needs Wi-Fi the first time each card plays so the audio can download.

tonies® and Toniebox are trademarks of tonies; Yoto is a trademark of its owner. Wunderli has no business relationship with either company. We name the products only to help parents compare them.

Create your first story in Wunderli. It's free.

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