Privacy Policy

Diktai for Mac and Android

Last updated: November 8, 2026

Overview

Diktai turns your speech into text on your Mac and on your Android phone. Speech recognition runs on your device. This page lists what leaves your device, when, and where it goes.

Your Voice Stays on Your Device

Both apps transcribe with the Parakeet speech model on your device: on the Mac through FluidAudio, on Android through sherpa-onnx. Audio is never sent to a server.

  • The Mac keeps a recording on disk only until its text is typed, then deletes it.
  • On Android, a recording you discard is kept for 8 seconds so you can restore it, then deleted.
  • Diktai asks for microphone access only to transcribe what you dictate.

What Stays on Your Device

Your History (your recent transcripts), your Words list and your settings are stored on your device only. Uninstalling Diktai removes them. The one exception is the Mac's Pro word backup, described under Accounts.

Android: the Accessibility Service

On Android, Diktai uses Android's Accessibility service to show its bubble over the text field you are typing in and to type your words into it. To do this it reads the app you are in, the text field and the words around the cursor. The words around the cursor decide, for example, whether the next word starts with a capital letter. This is read on the phone and is never stored or sent anywhere. Diktai asks for your agreement before you turn the service on.

Pro: AI Formatting and Voice Editing

With Diktai Pro, AI Formatting and Voice Editing send text to Diktai's server: the words you dictated, your Words list, and for Voice Editing the text you selected. The server passes the text to Groq, or to Cerebras if Groq is unavailable, and returns the result. Diktai's server does not store or log this text. Audio is never sent.

Accounts

On Android you can sign in with your email address to use Pro. Diktai emails you a 6-digit code through Resend, an email delivery service. Diktai's server stores:

  • your email address and an account ID;
  • for each signed-in device: its name, its platform and a hashed sign-in token;
  • the link to your subscription (a Stripe customer record, or a Google Play purchase token), and whether it is active.

The Mac app does not use an account. It checks your subscription with a random device ID. If you have Pro on the Mac, the server also keeps a copy of your Words list (up to 150 entries) so you can restore it on a new Mac.

Payments

On the Mac, Diktai Pro is sold through Stripe. On Android, it is sold through Google Play. You give your payment details to Stripe or Google, not to Diktai, and Diktai never sees your card number. For Stripe, Diktai keeps your Stripe customer ID. For Google Play, it keeps the purchase token and asks Google for the subscription's status. In both cases it keeps your subscription status and the end date of the current period.

Other Services

  • Android downloads the speech model once from Hugging Face. Like any download, the request carries your IP address.
  • Android detects the language of a transcript on the phone with Google's ML Kit. The ML Kit software sends Google diagnostic data: device model and Android version, app version, performance figures and a per-installation ID. It does not send your text or audio. See ML Kit data disclosure.
  • The Mac checks philippstreicher.com for app updates.

Diktai has no analytics, advertising or tracking code of its own.

Deleting Your Data

  • Android: General, then Account, then Delete Account. This signs out every device and deletes your account. Instructions without the app: Delete your Diktai account.
  • Mac Words backup, or anything else: email diktai@philippstreicher.com from the address you use with Diktai, and it is deleted within 7 days.
  • Deleting your account does not cancel a subscription. Cancel it first: in Google Play for an Android purchase, or under Manage Subscription on the Mac. Stripe and Google keep payment records as the law requires.

Changes to This Policy

When this policy changes, this page shows the new version with a new "Last updated" date.

Contact

Dr. Philipp Streicher
Email: diktai@philippstreicher.com