Glyph is a voice-first Egyptian Arabic learning service. This policy explains what information Glyph handles, why it is needed, which service providers help process it, and the choices available to you. Glyph does not sell personal information or use it for advertising or cross-company tracking.

Information you provide

  • Account and profile information: the name you choose for lessons, your Sign in with Apple account identifier, and an email address or Apple relay address when Apple makes one available.
  • Voice and learning content: speech used for pronunciation, transcription, and live practice; answers you speak or type; Journal entries; Ask Glyph questions; feedback; and other content you choose to submit.

Information created while you use Glyph

  • Learning state: lesson progress, review schedules, vocabulary and sentence encounters, settings, and the evidence needed to resume your learning.
  • Subscription information: product, entitlement, purchase state, renewal or expiration dates, and transaction events supplied by Apple and RevenueCat. Glyph does not receive your full payment-card number.
  • Usage and reliability information: a pseudonymous account ID, feature and lesson events, request outcomes, token or audio usage, app and operating system versions, performance measurements, errors, and crash diagnostics.

How information is used

Glyph uses information to:

  • provide guided lessons, review, speech recognition, playback, Ask Glyph, and live practice;
  • personalize language forms and restore eligible learning state across devices;
  • verify subscriptions, enforce plan allowances, prevent abuse, and keep service costs bounded;
  • answer support requests and process account deletion;
  • understand product use and improve reliability without placing learner content in automatic analytics.

Automatic Product analytics does not store raw speech, transcripts, spoken answers, Journal prose, or Ask Glyph messages. Those materials may still be transmitted to a provider when needed to perform the feature you requested.

Voice and AI processing

Voice features may send microphone audio to OpenAI or ElevenLabs for transcription. Ask Glyph and responsive practice may send the relevant question, transcript, recent context, and allowed learning context to OpenAI. Text may be sent to ElevenLabs to generate speech. These requests are limited to the information needed for the feature and are separate from Glyph's content-free automatic analytics.

AI-generated explanations, transcriptions, and responses can be incomplete or wrong. Avoid including sensitive personal information in speech, tutor questions, Journal entries, or feedback.

On-device information and recovery

Some learning records are primarily stored on your device. Glyph's account recovery synchronizes deterministic progress and settings, but intentionally excludes Journal text, Ask Glyph messages, retained recordings, live-call turns, and raw learner answers. Removing the app deletes local information subject to ordinary device backup behavior; it does not by itself delete your Glyph account or cancel a subscription.

Service providers

Glyph uses providers only to operate the app and website:

  • Apple for app distribution, Sign in with Apple, subscriptions, and device services;
  • Google Firebase for authentication, server functions, storage, recovery, security, analytics infrastructure, and crash reporting;
  • RevenueCat for subscription status and entitlement management;
  • OpenAI for requested transcription, Ask Glyph, and responsive language features;
  • ElevenLabs for requested speech recognition and speech generation;
  • Vercel for website hosting, aggregate website analytics, and performance measurement.

Information may also be disclosed when required by law, to protect the service or its users, or as part of a business transfer subject to appropriate safeguards.

Retention

  • Learning, account, and subscription records remain while your account is active or until you delete it, unless a record must be kept for security, legal, or financial reasons.
  • Pseudonymous detailed Product analytics records are scheduled for deletion after 90 days; anonymous daily and cohort summaries are retained for up to 13 months.
  • Operational quota, replay, and request receipts generally expire within 90 days, with many technical records expiring sooner.
  • Optional cancellation feedback may be retained for up to 180 days.
  • Apple, Firebase Crashlytics, and feature providers apply their own operational and legal retention practices to information they process.

Your choices

You can manage microphone and notification permission in iOS Settings. You can manage or cancel an Apple subscription from your Apple Account. In the Product app, account deletion is available under Profile → Privacy → Delete my account and data. Account deletion removes the Glyph account and associated Glyph-owned Product data; it does not cancel billing through Apple.

Visit Privacy choices for direct instructions, or email hello@terzima.com to request access, correction, or deletion of information Glyph controls.

Security and international processing

Glyph uses authenticated interfaces, access controls, encryption in transit, App Check, and restricted administrative access. No system can guarantee absolute security. Providers may process information in countries other than the one where you live, subject to their terms and applicable safeguards.

Changes and contact

This policy may change as Glyph's services change. The date above will be updated, and additional notice will be provided when required. Questions and privacy requests can be sent to hello@terzima.com.