Yumbo Privacy Policy

1. Scope

This addendum applies to the Yumbo app for iPhone and iPad (listed on the App Store as Yumbo: Toddler First Words), and to Yumbo support or privacy requests you choose to send to Synap1e. Yumbo is offered in the App Store Kids category for ages five and under and is designed for children aged two to four, used with or without a grown-up beside them.

2. What Yumbo does not collect

Yumbo does not collect, store or transmit personal information from children or adults. There is no account or sign-in, no name, age or email is ever asked for, and the app contains no advertising, no analytics, no crash reporting, no third-party software development kits and no tracking of any kind. The app requests no system permissions: it does not use the microphone, camera, location, contacts or photo library. Every picture, word and sound ships inside the app, so no screen a child plays on ever touches the network. The only part of Yumbo that uses the internet is the grown-ups screen behind the parental gate, where Apple’s App Store is asked for the current plans and for any purchase already made on the Apple Account. That request is made by Apple’s own software and carries nothing about the child or how the app has been used.

3. The microphone button

Yumbo's say-it-back moment shows a microphone button that invites a child to say the word out loud. It is a cue, not a recorder. The app does not access the microphone, does not perform speech recognition, and never captures, stores or transmits a child's voice. iOS never shows a microphone permission prompt for Yumbo because the app never asks for one.

4. Data that stays on the device

Yumbo stores two values in the app's own storage on the iPhone or iPad: whether Yumbo Plus has been unlocked, and whether all twelve free words have been played once, which keeps the Unlock everything button on the home screen for a grown-up. Neither is personal information and neither leaves the device. Yumbo keeps no record of which words a child has seen or heard, and no history between sessions beyond those two values. iOS may include app data in an iCloud Backup or a computer backup under Apple's own settings and privacy terms. Deleting the app removes its storage from the device.

5. Children's privacy

Yumbo is built to be safe for a toddler to use alone. Nothing on a child's screen sells anything, links out, shows web content or asks for information. Tapping a padlocked set of words opens a parental gate, three numbers named in words rather than digits, and the plans, the prices and every link out of the app sit behind it. Because Yumbo collects no personal information, it has nothing to share with, sell to, or receive from anyone, and no information about a child is ever used for advertising or profiling. Synap1e does not knowingly collect personal information from children anywhere; if you believe a child has sent us personal information through a support message, write to privacy@synap1e.com and we will delete it.

6. Purchases

Yumbo is free to download and twelve of its words are free to play forever. Yumbo Plus opens the remaining words, and it is sold and billed by Apple through the App Store using Apple's StoreKit. It sits behind the parental gate and never appears on a child's screen. Yumbo reads only the verified entitlement needed to unlock the words and records that one fact on the device; it receives no name, payment card or billing detail, and Synap1e receives none either. Where a free trial is offered, Apple decides eligibility, and Apple sends the reminders and handles any refund. Subscriptions are managed and cancelled in iOS Settings under your Apple Account, and a purchase can be restored on a new device from the same grown-ups screen.

7. Speech and sound

Every word, cheer and prompt in Yumbo is a recording that ships inside the app. If a recording is ever unavailable, Yumbo falls back to Apple's on-device speech synthesis, which runs on the iPhone or iPad and sends nothing anywhere.

8. How the pictures and sounds were made

The characters and recordings inside Yumbo were produced by Synap1e before release with the help of AI image and voice tools, then reviewed by a person card by card. No AI runs on the device or in any service while the app is used, and nothing a child does is ever sent anywhere.

9. Website visits

If you visit this website, standard hosting, security and performance records may be generated by our hosting provider. The app itself never contacts this website.

10. Retention, deletion and your rights

Synap1e holds no data about Yumbo users, so there is nothing for us to retain or delete on your behalf. Everything the app stores is on your device and is removed when you delete the app. Support or privacy messages you send us are kept only as long as needed to answer them. Parents and guardians who have questions about a child's use of Yumbo can write to privacy@synap1e.com at any time.

11. App-specific addendum

12. Contact and policy links

For help with app issues, visit Yumbo Support. You can also review Terms of Service.