Privacy Policy for Gaby

Effective date: 2026-06-28
App: Gaby — Spanish conversation practice
Developer: Eugene Sergio Castro De Los Santos
Contact: delossantos.eugene@gmail.com

Plain-language summary: Gaby collects nothing about you. Everything — your conversations, your profile, what Gaby remembers, your voice — stays on your device. There are no accounts, no analytics, no tracking, and no servers that we operate receive your data.

1. The short version

Gaby is an offline, on-device Spanish practice app. The AI that talks with you runs entirely on your iPhone. We do not have a backend, we do not have user accounts, and we never receive your messages, your voice, or any personal information. Because we collect nothing, there is nothing for us to sell, share, or lose.

2. Information we collect

None that leaves your device. Gaby does not collect, transmit, or store any personal data on any server we control. We have no analytics SDKs, no advertising SDKs, and no third-party trackers.

The following data is created and stored only on your device (in the app's local storage / iOS UserDefaults), and is removed when you delete the app:

None of this is ever sent off the device by Gaby.

3. Microphone and speech recognition

Gaby asks for microphone and speech recognition access so you can practice speaking Spanish. Gaby requests on-device speech recognition (requiresOnDeviceRecognition), so your spoken audio is transcribed locally on your iPhone. Your voice is not recorded to a file, is not sent to the developer, and is not sent to any server we operate.

Speech recognition and text-to-speech are provided by Apple's operating-system frameworks. Their use is governed by Apple's Privacy Policy.

4. Translation

When you turn on translations, Gaby uses Apple's on-device Translation framework to translate between Spanish and your language. Translation runs locally; the developer receives nothing.

5. The AI language model

On first launch, Gaby downloads its language model (~1.8 GB) one time from Hugging Face so the app can run fully offline afterward. As with any internet download, your device connects to Hugging Face's servers and that request includes your device's IP address. Gaby sends no account information, profile, conversation, or other personal data in this request — it only fetches the model files. Hugging Face's handling of that connection is governed by their own privacy policy. After this one-time download, the model runs entirely on your device and your conversations never leave your iPhone.

6. Notifications

If you enable practice reminders, Gaby schedules local notifications on your device. Reminder text is generated on-device. No notification data is sent to a server.

7. Network use

Gaby's only network activity is:

  1. The one-time model download described in Section 5.
  2. Apple-managed downloads of on-device speech/translation assets, handled by iOS (not by the developer).

There is no other network communication, no telemetry, and no background data collection.

8. Data sharing

We do not share, sell, rent, or disclose your data to anyone, because we do not collect it. There are no third-party data recipients.

9. Children's privacy

Gaby does not collect personal information from anyone, including children. The app contains AI-generated conversational content (see the App Store age rating).

10. Your control and data deletion

All data Gaby creates lives on your device. To delete it, delete the app — this removes your profile, conversations, memory, and preferences. There is no server-side copy to request.

11. Changes to this policy

If this policy changes, we will update the effective date above and post the revised policy at the same URL. Material changes will be reflected in a future app update.

12. Contact

Questions about this policy: delossantos.eugene@gmail.com


Appendix — App Store "App Privacy" label mapping

Use this when filling out App Privacy in App Store Connect: