Saymila is built so that your voice never goes through our servers. Here is exactly what goes through our server, and what stays there.
Last updated: November 4, 2026
Saymila is published by Guillaume Le Coz, the controller of your data. For any question about your data: guillaume@guillaumelecoz.com. All our contact details are in the legal notice.
On iPhone, speech recognition is done by iOS, on your iPhone. No audio recording is sent or kept, by us or by anyone else.
On Android, it is done by Android’s speech recognition service: right on the phone when it can (Android 12 or later, with the language installed), otherwise by Google’s speech service, under Google’s privacy policy. Saymila never receives or keeps any audio recording.
On a Mac, it is done by macOS, on your Mac. No audio recording is sent or kept.
On Windows, it is done by Saymila itself, on your PC, with Whisper, a speech recognition model released as open source by OpenAI that runs entirely on your computer: neither OpenAI nor anyone else receives your voice. The model downloads once, the first time you open the app, from our server (or, if it does not answer, from Hugging Face). No audio recording is sent or kept.
To be cleaned up, the transcribed text (or the text you ask to rewrite) is sent to our server, which passes it to OpenAI (United States) and sends the result back. Our server never records it: not in a database, a file or a log. The one exception is a text you report (see below).
We ask OpenAI not to store it. OpenAI does not use it to train its models, but may keep it for up to 30 days to detect abuse, under its own policy.
An account is needed to use Saymila. With Apple, you can hide your e-mail address: we then only receive a relay address.
There are also anonymous statistics (words per day and per writing style, for all accounts together), tied to no account. As with any website, our hosting provider also keeps technical logs (IP address, date, page requested) to keep the server secure.
If a text produced by Saymila seems offensive, harmful or wrong, you can report it from the history of the Android app, or by writing to guillaume@guillaumelecoz.com. From the app, the dictated text and the rewritten text are sent to our server with the style used, and kept for at most 90 days for us to review, then erased. It is the only time a dictated text is kept, and it is your choice.
With the Pro plan, you can write your own writing styles. Their name, emoji and instructions are saved on your account, so you find them on all your devices. Each time you save one, its instructions are sent to OpenAI to check that they describe a way of writing; they then go with every rewrite made in that style. You can change or delete them at any time in the app.
Your dictation history stays in the app, on your phone or your computer, for as long as you choose: 24 hours, 7 days (the default), 30 days, no limit, or not at all. It is never sent to our server, except a text you report.
The keyboard does not record what you type. On iPhone, full access is only used to pass text between the keyboard and the app. On Android, the text of a field is only sent when you tap “Rewrite”.
On a Mac, Saymila asks for Accessibility to hear its shortcut in every app and type the text wherever your cursor is. It only reads the character just before the cursor, to know whether to add a space, and does not record what you type. The text goes through the clipboard for a moment, which then gets its content back. A selected text is only sent when you choose to rewrite it with Saymila.
On Windows, Saymila listens for its dictation key in every app, without recording what you type, and asks for no special permission. To type the text wherever your cursor is, it passes it through the clipboard for a moment, kept out of the Windows clipboard history, and the clipboard then gets its content back. It only reads the character just before the cursor, to know whether to add a space.
Subscriptions are handled by Apple (App Store) or by Google (Google Play). We never see your payment details: the store only tells us the plan you bought and when it ends.
No advertising, no analytics tools, no profiling, no sale of data.
This data is only used to run the service you use: signing you in, counting your words, applying your plan. Its legal basis is the performance of the contract between us, that is the terms of use. Limiting abuse, as with the Pro plan’s technical ceiling, and reviewing reported texts rest on our legitimate interest in protecting the service.
It is kept as long as your account exists, your custom styles until you delete them, and reported texts for 90 days at most. A session unused for 180 days expires.
In the app, on iPhone and on Android: My account › Delete my account; on a Mac and on Windows: Account › Delete my account. Your account and all its data (devices, usage, subscription, custom styles, reported texts) are immediately erased from our server, along with the history on that device. Only the anonymous statistics remain.
Without the app, write to guillaume@guillaumelecoz.com from your account’s e-mail address: we delete it within 30 days.
Deleting your account does not cancel a running subscription: do it in your Apple Account settings or in Google Play.
OpenAI, to clean up the text and check your custom styles; Apple and Google, to sign you in and for payments; OVH SAS, our hosting provider, which runs the server in France. No one else. On Android, when the phone does not recognize speech itself, Google’s speech service receives your voice, directly from your phone. On Windows, if our server cannot provide the speech recognition model, it is downloaded from Hugging Face (United States), which then sees your PC’s IP address.
OpenAI, Apple and Google are American companies: the data they receive may be processed in the United States. These transfers are covered by the safeguards the GDPR provides for: the EU–U.S. Data Privacy Framework or the European Commission’s standard contractual clauses.
Under the GDPR, you can access, correct, delete or export your data, restrict its processing or object to it, by writing to guillaume@guillaumelecoz.com. We answer within one month. You can also delete your account yourself in the app.
You can also tell us what you want done with your data after your death. If you think your rights are not respected, you can contact the French data protection authority, the CNIL (cnil.fr).