Posta Privacy Policy
Last updated: October 13, 2026
Posta is an app for learning Argentine Spanish. It is run by PICAWAVE, LLC, a Delaware limited liability company ("we", "us"), which is responsible for your data. This policy explains what we collect, why, who helps us run the app, and how to delete your data.
Questions: contact@picawave.com
What we collect
Your account
- Email address and password (the password is stored hashed; we never see it).
- If you sign in with Apple or Google instead, we receive your email address and name from them, and no password. With Apple you can choose to hide your email.
- The name you choose to show in the app, and your time zone (so your streak and reminders follow your day).
Your learning
- Your progress: lessons finished, answers you give, words you've practiced, mistakes, and your streak.
- How the lessons perform (for example, which exercises were hard), so we can improve the course.
- Answers you report to us as wrongly marked.
Hablar (speaking practice)
- When you talk with Pancho, we record your voice, turn it into text, and keep the transcript of the conversation and the feedback you got. Posta uses the microphone only while you are recording, and only if you allow it.
- Pancho's replies, the feedback and the explanations of your answers are generated by AI.
- Voice recordings are deleted automatically after 30 days. Transcripts stay with your account until you delete it.
Purchases
- If you subscribe, the App Store or Google Play handles the payment. We never see your card details. We receive whether your subscription is active, its plan and its renewal date.
Notifications
- If you allow notifications, we store a push token for your device or browser, and the reminder time you chose, so we can send practice reminders. You can turn them off at any time in your device settings.
Technical data
- Like any online service, our servers and providers see your IP address and basic device information (such as phone or browser type) when the app connects to them. We use it to keep Posta running and secure. Reminder delivery logs are deleted after 14 days.
On your device only
- Your answers to the first-time setup questions (your goal, level and daily time) are stored on your phone.
We do not use advertising, we do not sell your data, and we do not track you across other apps or websites.
Why we use it
- To run your account and save your progress across devices.
- To build your lessons and reviews around what you know.
- To give you speaking practice and feedback in Hablar.
- To check your subscription and unlock Premium.
- To send reminders you asked for.
- To fix problems and improve the course.
Who helps us run Posta
We share data only with the services that make the app work, and only what each one needs:
| Service | What it does | What it receives |
|---|---|---|
| Supabase | Database, sign-in and file storage | Your account, progress, transcripts and recordings |
| Anthropic (Claude) | Pancho's replies, feedback and explanations | The text of your Hablar conversations and answers |
| ElevenLabs | Turns your voice into text, and Pancho's voice | Your voice recordings (Hablar) |
| Amazon Web Services | Delivers the lesson audio | Your IP address, when the app downloads audio |
| Expo | Delivers push notifications to phones | Your device's push token and the text of the reminder |
| Apple / Google | Sign-in, payments and push notifications | That you signed in to Posta, purchase details tagged with your Posta user ID (not your email), and your device's push token |
These providers process data on our behalf and may store it in the United States or other countries. We may also share data if the law requires it, or if Posta changes hands, in which case this policy keeps applying to your data.
How we protect it
Data travels between the app and our servers over encrypted connections. Your voice recordings are stored privately, and your progress and conversations can only be read from your own account. No system is perfectly secure, so we can't promise absolute security.
Our website
The Posta website has no analytics and no advertising cookies. It loads its fonts from Google, which receives your IP address when the page opens.
How long we keep it
- Voice recordings: 30 days.
- Reminder delivery logs: 14 days.
- Everything else: for as long as you have an account.
- When you delete your account, we delete your data right away. Some copies may remain in backups for a short time before they are overwritten.
Deleting your account
In the app, tap the capybara picture at the top of the home screen, then Delete account. This permanently deletes your account, progress, Hablar transcripts and recordings.
Deleting your account does not cancel a subscription. Cancel it in your App Store or Google Play settings.
You can also ask us to delete your data by writing to contact@picawave.com.
Your rights
We use your data because we need it to provide Posta to you under our Terms of Use, because you allowed it (the microphone and notifications), and because we have a legitimate interest in fixing and improving the app.
Depending on where you live (for example in the EU, UK or California), you can ask to see, correct, download or delete your data, or object to how we use it. Write to contact@picawave.com and we'll reply within 30 days. You can also complain to your local data protection authority.
Children
Posta is not directed at children under 13, and we don't knowingly collect data from them. If you think a child has given us data, contact us and we'll delete it.
Contact
PICAWAVE, LLC
131 Continental Dr, Suite 305, Newark, DE 19713, USA
contact@picawave.com
Changes
If we change this policy, we'll update the date at the top. For important changes, we'll let you know in the app.