Estructura helps you see the structure behind a sentence — how an idea is reshaped from English into Spanish word order before it becomes Spanish. This policy explains, in plain terms, what happens to your data when you use the website and the iOS app.
When you ask Estructura to restructure a sentence or chat with the practice tutor, the text you type is sent over an encrypted connection to our cloud functions and to our language-model provider, Google (Gemini API), which generates the restructuring and explanation. We don't ask you to include personal information in these sentences, and we recommend you don't.
We keep service-side logs of conversation turns — the sentence you submitted and the lesson the model generated — for a limited period, to operate the service, fix bugs, and improve how lessons are generated (for example, checking whether the model followed the structural rules correctly). These logs are tied to the request, not to a personal identity, since Estructura has no accounts. If you'd like a specific sentence removed from our logs, email us with the approximate time and text and we'll delete it.
To enforce fair-use limits without requiring an account, the app sends a random identifier generated on your device with each request. It is not derived from your hardware, is not used for advertising or tracking across apps, and resets if you clear the app's storage.
Your learning progress — which structural patterns you've seen and your spaced-repetition schedule — is stored locally in your browser/app storage on your device. It is not uploaded to an account. Clearing the app's storage or reinstalling resets it.
Estructura is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children.
We rely on infrastructure and model providers to run Estructura, including Vercel (hosting) and Google (the Gemini language model). Your submitted text is processed by these providers solely to deliver the feature you requested.
Because there's no account, the simplest controls are in your hands: don't submit personal information, and clear your on-device storage at any time to remove your local progress. For any request or question, contact us below.
Questions about this policy? Email support@estructura.app.
If this policy changes materially, we'll update the date above and post the revised version on this page.
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