Howdo — Privacy Policy

Last updated: June 2, 2026

Howdo is a personal language-learning app built to work entirely on your device. We do not collect, store, transmit, sell, or share any personal data — about you or anyone else. There is no server, no account, and no login.

The short version

No data is collected. Nothing you do in the app is sent to us or anyone else.
No accounts, no tracking, no analytics, no advertising, no third-party SDKs.
Everything stays on your iPhone. Your progress lives in on-device storage and never leaves the device.
Your microphone is used only on your device, in real time, to score your pronunciation. Audio is never recorded, saved, or transmitted.

What's stored on your device

To make the app work, it saves the following only on your device, using Apple's on-device storage (SwiftData):

Your learning progress and spaced-repetition state
Your settings (language, daily goal, reminder time, playback preferences)
Your session history and streak
Your pronunciation attempt scores

This information stays on your device, is not accessible to us, and is not backed up to any server we control. (If you have iCloud device backup enabled, your iPhone's normal backup is handled by Apple under Apple's privacy policy — not by us.)

Microphone and speech recognition

With your permission, the app uses your microphone so you can practice speaking.

Speech recognition is performed entirely on your device using Apple's on-device Speech framework. Your audio is not sent to Apple's servers or to us.
The microphone is active only while you are actively recording a pronunciation attempt. Audio is processed in real time and is not recorded, saved, or transmitted.
You can deny or revoke microphone and speech-recognition permission at any time in iOS Settings → Howdo. The rest of the app continues to work without them.

Text-to-speech

Audio playback of phrases uses Apple's on-device text-to-speech voices. No data is sent anywhere to generate it.

Notifications

If you turn on the optional daily review reminder, the notification is scheduled locally on your device. There is no remote server sending you notifications. You can turn reminders off any time in the app's Settings, or in iOS Settings.

Children's privacy

The app collects no data from anyone, including children. It does not knowingly collect personal information from children under 13 (or the equivalent minimum age in your region), because it does not collect personal information at all.

Third parties

The app contains no third-party analytics, advertising, or tracking software. Apple operates the underlying device features (on-device speech recognition, text-to-speech, local notifications) and, if you choose to rate the app, the App Store rating prompt — all governed by Apple's Privacy Policy.

Keeping or deleting your data

Because all data is local:

To erase everything, use Settings → Reset all progress inside the app, or simply delete the app — that removes all of its data from your device.
We cannot access, retrieve, or delete your data for you, because we never have it.

Changes to this policy

If this policy changes, the updated version will be posted at this address with a new "Last updated" date.

Contact

Questions about this policy or the app:
Email: hello@tryhowdo.com

Howdo is developed by Rodolfo Diaz Cabello. It is an on-device app and collects no data; this policy reflects that.