What the privacy label means
Every app on the App Store has an "App Privacy" section on its page, filled in by the developer. Apple notes that the developer "indicated" these practices; Apple doesn't audit them. The label sorts data into three groups:
- Data Used to Track You: data linked with data from other companies' apps and websites, for advertising or measurement, or shared with data brokers.
- Data Linked to You: data connected to your identity, such as an account, a device or contact details.
- Data Not Linked to You: data collected without being connected to your identity, often crash reports and usage statistics.
"Data Not Collected" means the developer says the app collects nothing at all.
The twelve apps, side by side
| App | Ads | Account | App Store privacy label |
|---|---|---|---|
| Kadoo | None | None | Data Not Collected |
| Monkey Junior | Not stated (no "Contains ads" label on Google Play) | Not found | Data Not Collected |
| Gus on the Go: English | None | None | Data Not Collected |
| Khan Academy Kids | None | Required | Not linked to you: Contact Info, Identifiers, Usage Data, Diagnostics |
| Dinolingo | None | Not confirmed | Not linked to you: Purchases, Contact Info, Identifiers |
| Novakid (parent app) | Not stated | Required for lessons | Not linked to you: Identifiers |
| Duolingo ABC | None | Optional | Linked to you: Usage Data, Diagnostics |
| Studycat | None | Optional | Linked to you: Contact Info, User Content. Not linked: Purchases, Location, Identifiers, Usage Data, Diagnostics |
| Les Mini Mondes Explorers (Pili Pop) | None | Not found | Linked to you: Contact Info, User Content, Identifiers, Usage Data. Not linked: Location, User Content, Usage Data, Diagnostics |
| Buddy.ai | None | Optional | Linked to you: Purchases, Contact Info, User Content, Usage Data, Diagnostics, Other Data. Not linked: Identifiers |
| EWA Kids | None | Not found | Linked to you: Purchases, Location, Contact Info, User Content, Identifiers, Usage Data, Diagnostics, Other Data |
| Lingokids | None | Required | Used to track you: Identifiers. Linked to you: Purchases, Contact Info, User Content, Identifiers, Usage Data, Diagnostics |
Sources for each row are listed below. Labels can change with any update, so check the app's page before you download.
Does "no data" matter for a young child?
Collecting some data isn't wrong in itself. Crash reports help developers fix problems, and an account lets progress follow a child across devices. Apps that use the microphone for speaking practice need voice input to work. In the United States, apps for children under 13 must follow COPPA, whose updated rule took effect in June 2025 and requires a parent's consent before children's data is shared with third parties (Federal Register, 22 April 2025). Apple's rules for the Kids category also bar third-party advertising and most third-party analytics.
Still, some families prefer an app where nothing about their child leaves the device. If that's you, look for "Data Not Collected" on the App Store page, no account to create, and an app that works offline.
The three with no data collected
Kadoo (ours). An English learning game for ages 4 to 8 who don't speak English yet: nearly 1,000 everyday words in a painted town, letters and their sounds, numbers to 100 and 48 songs. No account, no analytics, no camera, microphone or location, and it works offline. Progress stays on the device. A subscription opens the whole town; the house is free with no time limit. Questions and answers.
Monkey Junior. English from birth to age 11, with flashcards, phonics and speech recognition, offline after downloading lessons. A "1-year" plan is listed at $29.99 on the US App Store. App Store.
Gus on the Go: English. A small app with nearly 90 words for toddlers and preschoolers, a one-time $3.99, with "no ads, in-app purchases, links, tracking or sharing functions". App Store.
For how these and the other apps differ on what they teach, see the best apps for kids learning English as a second language.
Sources
App Store pages, US store, all seen 25 October 2026: Kadoo, Monkey Junior, Gus on the Go: English, Khan Academy Kids, Dinolingo, Novakid English school, Duolingo ABC, Studycat, Les Mini Mondes Explorers, Buddy.ai, EWA Kids, Lingokids.
Accounts: Khan Academy Kids help, Lingokids help, Studycat help, Buddy.ai FAQ, Duolingo ABC on Common Sense Media, Novakid prices.
We recheck this page every three months. If something here is out of date, write to kadoo@inoviatech.io and we'll correct it.
