Privacy

Sprekka is a reading app. Almost everything it knows about you is what you have read, and it only knows that so it can decide what to give you next.

Reading without an account

You do not need an account to read. Every text, every translation line, the dictionary, the grammar and the audio are available without signing in, and without being asked for anything.

Used this way, the first time you tap or type something the server gives this browser a random identifier of its own, kept in a cookie (in the phone app, in the app's own storage), and records what you read against it so the app can choose what comes next. It is not tied to you — no name, no address — and there is nothing in it that could be used to find you. If you sign in, it moves to your account; left unused for six months, it is erased.

If you make an account

An account exists so that your reading follows you between a phone and a laptop. To make one you give an email address, and that is the only personal detail asked for at any point. There is no password: signing in sends a one-time link, or a six-digit code in the app.

Attached to the account, and only to the account:

• which pieces you have opened and finished, and how far into each one you got;
• words and pieces you deliberately saved;
• how long you have spent listening, and the minutes a day you chose as a goal;
• the result of the level test, if you took it: the level and how many words of each band you knew — not which answers you picked;
• notes you asked the app to keep;
• a score per word for how fluently you read it — the model that decides which words come back. It is built from how long your eyes rest on a word, which is the most personal thing here and never leaves the server.

What we do not do

• No advertising, and no advertising identifiers.
• No tracking across other apps or websites, by us or by anyone else.
• No third-party analytics. The usage figures come from the app's own database, not from a service that watches you.
• Nothing about you is sold, rented or shared for anyone else's purposes.

Waiting for a course

On the page where you choose a language, a course that is still being written has a Tell me when it's ready button. If you use it, we keep the email address you give with the language you asked about, and use it for one thing: telling you when that course opens. You do not need an account for it. Closing an account with the same address removes it, and so does writing to us.

That page also counts, without knowing who you are, how many people arrived from each of our own posts and which language they chose. It reads only the tags we put in our own links; if you then make an account, the account remembers which of our posts you first came from.

Text you send for analysis

When you ask the app to explain a sentence you typed — a notebook entry — that sentence may be sent to a language service to be analysed: for Czech, the UDPipe service run by Charles University in Prague. This is the text itself and nothing about who sent it. The app does not translate what you type, and sends nothing to a translation service. The texts in the library are analysed once, in advance, and reading them sends nothing anywhere.

A dictionary word or a line that has no recording yet may be read aloud by Microsoft's Azure speech service the first time anybody asks for it. What is sent is that word or line, from the dictionary or the library — never anything you typed, and nothing about who asked — and the recording is kept on our server, so it is made once for everybody.

Your voice, when you ask for a score

The reader lets you record yourself saying a line and play it back. That recording stays in your browser. Only if you then press Score it is that one recording sent: to our server, and from there to Microsoft's Azure speech service, which compares it with the line and says how close each word was. Microsoft processes it to return the score, under its terms for Azure customers. We do not keep the recording: it is deleted as soon as the score comes back. The account keeps the score and how many seconds were sent, so that a daily allowance can be counted. Scoring is only offered to accounts.

If you buy a plan

Payments are taken by our payment provider, who is the seller on your receipt and handles the card, the tax and the receipt itself. We never see or keep your card details. We keep what the provider tells us about your plan — which plan, until when, and the provider's reference for it — so the app knows what you have paid for. Cancelling and receipts are on your account page.

When something goes wrong

If the app hits an error, your browser sends us the error message, the page's address (without anything after a ?), the app's version and the browser's name, so we can fix it. If you are signed in, the report is linked to your account, and it is deleted with it. It never includes what you typed or read.

Where it is kept, and for how long

On our own servers in Europe. Reading records are kept while the account exists, because their whole purpose is to be a history.

Deleting everything

You can close your account from inside the app — in the account panel, Close account. It erases the account and everything listed above: the history, the saved words, the progress and the word model. It is immediate and cannot be undone, and you can carry on reading afterwards without an account. If you would rather ask us to do it, write to the address below.

Children

Sprekka is not aimed at children under 13 and does not knowingly keep anything about them. Some texts are literature written for adults; the app asks before showing anything rated for an older reader, and that choice can be changed at any time in the settings.

Whose work the app is built from

The dictionaries, the analysers and the voices are other people's work, used under open licences that require them to be named. The full list, with each licence, is in the app under Credits.

Asking us anything

Write to hello@sprekka.com.

Last updated 7 October 2026. If this ever changes in a way that affects what is kept about you, the app will say so rather than quietly replacing this page.