Stiqa • Effective date: September 22, 2026

Stiqa ("the App," "we," "us") is a vocabulary-learning app for readers, made by Enzo Smith. This page explains what information the App handles, how it's used, and the choices available to you. We've tried to describe exactly what the app actually does — not more, not less.

Information we do not collect

Stiqa does not require or support account creation, and does not collect your name, email address, phone number, or any other information that identifies you as a person. There is no login, no sign-up, and no user profile of any kind.

Information you provide, and how it's stored

When you use Stiqa, you can save:

• Words you look up, along with their definitions, phonetic spelling, part of speech, and example sentences
• Sentences you've typed in from your own reading ("source sentences")
• Book titles you associate with saved words
• Favorite and "learned" status, and study/review history for each word

All of this content is stored locally on your device, using Apple's SwiftData framework. It is not uploaded to, or backed up on, any server we operate, and it is not synced to iCloud or any other account. If you delete the app, this data is deleted along with it.

Third-party AI service (Anthropic)

Stiqa uses Anthropic's Claude AI model to generate word definitions and, optionally, contextual explanations. To do this:

• When you look up a word, the word itself is sent to our backend (hosted on Supabase), which forwards it to Anthropic's Claude API to generate a definition, part of speech, phonetic spelling, and example sentence. The result is returned to the app and, only if you choose to save it, stored locally on your device.
• When you tap "Explain in this context" on a saved word, the word, the sentence you provided, and (if you've entered one) the book title are sent to the same backend, which forwards them to Claude to generate a context-specific explanation. This feature is optional and only runs when you explicitly request it — the app shows you what's sent and why before the first time it's used.

Neither request includes your name, device identifier, or any other identifying information — only the text described above.

Our backend (Supabase Edge Functions) acts as a lightweight relay: it forwards your request to Anthropic and returns the response, without storing your words, sentences, or book titles in a database. As with any networked service, standard infrastructure-level logs (such as IP address and timestamps) may be retained briefly by our hosting provider (Supabase) and by Anthropic for security, abuse-prevention, and operational purposes, consistent with their own policies. We encourage you to review Anthropic's Privacy Policy (https://www.anthropic.com/legal/privacy) and Supabase's Privacy Policy (https://supabase.com/privacy) for details on how they handle data sent through their services.

No analytics, advertising, or tracking

Stiqa does not use analytics SDKs, crash-reporting tools, advertising networks, or any form of tracking. We do not collect device identifiers, location data, or usage statistics. The app does not request access to your camera, microphone, contacts, or location.

Data retention