Privacy Policy
Effective date: October 4, 2026
OptimalAI Limited operates PhraseNest. Contact us at support@optimalai.world for privacy questions and requests.
PhraseNest does not require a separate PhraseNest account. Apple manages the accounts used for purchases and optional iCloud sync. The app has no third-party advertising or analytics SDKs, and we do not sell your recordings or learning data.
Recordings and AI processing
The microphone is used when you start a recording. With your AI data consent, we send that recording over HTTPS to our backend hosted by Alibaba Cloud in the United States, then to Google Gemini. Google receives the recording for English transcription and the resulting transcript for Spanish card generation. We do not send your iCloud library or practice history to Gemini as part of this process.
Our backend processes recordings, transcripts, and candidate cards in memory. It does not intentionally save that content in its database, on disk, or in application logs. This is separate from Google's own data handling.
PhraseNest uses Gemini API through a project with active Cloud Billing. Under Google's terms for Paid Services, Google does not use API prompts or responses to improve its products. Google may retain inputs and outputs for a limited period for safety, abuse prevention, and required legal disclosures. Google's processing and temporary storage may occur in countries where Google or its agents maintain facilities; the US location of our backend does not mean all processing stays in the US. Avoid recording sensitive or confidential information.
Your choices and local recordings
The original recording is removed from the app's local recording record once candidate cards are ready. Pending and failed recordings stay on your phone so you can retry or delete them. They are not synced to the app's iCloud library, though local app data may be included in device backups according to your Apple settings.
You can withdraw AI data consent in Settings. The app cancels active upload requests and stops new uploads; pending recordings remain on your phone. Cancellation cannot recall data already received by our backend or Google. You can continue using your existing library without giving AI data consent.
Library and iCloud
Cards, recording titles and dates, practice records, learning progress, and generated Spanish audio are stored on your device. When iCloud is available, they sync through the app's private iCloud database under your Apple Account. Apple handles iCloud storage and device backups under its own terms and privacy policy. When iCloud is unavailable, the library remains local.
Library audio uses the voice you select in Settings: local iOS speech synthesis or, when the model is available, an experimental Audio8 female or male preset. The male preset uses synthetic Spanish reference speech generated for PhraseNest. The development female preset uses a bundled demonstration reference supplied with Audio8. Your card text and generated speech stay on the device during synthesis and may then sync to your private iCloud library. They are not sent to our backend or Google for speech synthesis. Local previews are not uploaded; the development preview page replaces its temporary preview file on each generation. The app does not collect recordings to clone your own voice.
Reminders and permissions
Optional daily reminders are scheduled locally using your learning plan and reminder settings. You can turn them off in the app or iOS notification settings. You can also revoke microphone access in iOS Settings.
Purchases and usage
Apple processes subscription purchases. Our backend verifies Apple-signed app transaction information and asks Apple's App Store Server API for subscription status. It stores an app transaction identifier, calendar month, and processing duration to enforce the monthly allowance. We do not receive your payment card details or Apple Account password.
To authenticate requests and prevent abuse, the backend stores App Attest key identifiers, public keys, and verification counters. Operational logs can include IP addresses, request times, API paths, response codes, and error types; they do not contain recording content, transcripts, generated cards, or API keys.
Server authentication records and historical monthly usage are not automatically deleted when you uninstall the app or when the allowance resets. Contact support@optimalai.world for a verified access, correction, or deletion request. We may need to verify the request and retain records where required for security, disputes, or applicable law.
Support and reports
If you email us or report a card, we receive your email address and the information you choose to include, such as the card text and your reason for reporting it. We use this information to respond, investigate the report, and provide support. Do not include passwords or API keys. Support correspondence may be retained as needed to resolve your request and meet security or legal obligations.
Deleting data
You can delete pending recordings, individual cards, or entire batches in the app. Card deletions sync to your other devices when iCloud sync is available. Removing a card from the library does not guarantee immediate erasure of all associated practice records, audio files, or backup copies.
Uninstalling removes the app's local data container, but does not delete its iCloud database, Apple's purchase records, or server usage records. To remove the iCloud library, use Apple's iCloud storage controls for PhraseNest. Device backups are managed separately through Apple. Deletion in the app or uninstalling does not cancel an Apple subscription or recall data already sent to Google.
Policy updates
We will publish a revised effective date when this policy changes. Material changes to the AI provider or data sent require renewed AI data consent before further uploads.