Legal documents for my apps
Last updated: July 3, 2026
Spark & Splash Lab (“we”, “our”, or “us”) is an educational physics app designed for children ages 4–5, owned and operated by Mount Si Labs LLC, a Washington limited liability company. This Privacy Policy explains how we handle information in the app.
Spark & Splash Lab does not collect, transmit, or store any personal information. There are no accounts, no login, no forms, and no way to enter personal data in the app.
The app stores the following data locally on your device only:
player_progress.json): Mission completion status, earned stickers, and play time — stored in the app’s sandboxed documents directoryThis data never leaves your device. We do not have access to it, and we do not operate any servers.
The app uses Apple’s built-in AVSpeechSynthesizer for voice narration. All speech processing happens on-device. No audio data is sent to any server.
If you back up your device to iCloud, your app data may be included in that backup. This is governed by Apple’s Privacy Policy. We do not have direct access to these backups.
We do not collect analytics or usage data. The App Store may collect anonymous crash data if you have opted in to share analytics with developers via your iOS system settings.
Since we do not collect any information, we do not use it. All processing — physics simulations, circuit solving, mission evaluation, and sticker rewards — happens entirely on your device.
Spark & Splash Lab contains:
Spark & Splash Lab is specifically designed for children ages 4–5. We take children’s privacy seriously:
If you have questions about this Privacy Policy: