Synti AppsPrivacy Policy
Last updated: 12 October 2026. Written in the same plain words as the product. If anything here is unclear, that is a fault worth reporting.
The short version
Your applications, what you asked for and everything inside them stay on your computer. The only things we ever receive are the few facts set out below - and we cannot receive more, because nothing else is ever sent. The one thing you can hand us yourself is your email address, if you ask to be told when something is out.
Who is responsible for your data
Synti Labs, the maker of Synti Apps, decides why and how the data described here is handled, and is the controller for it. Write to apps@synti.co about anything on this page, including any request about your own data.
What Synti App Creator and the Synti App Hub send
This is about Synti App Creator and the Synti App Hub themselves, not about the apps you make with them - an app you make reaches us in no way at all. When one of the two opens, it tells us that a copy of it exists, which version it is, what kind of computer it runs on, and its name - so that you can be told when there is a newer version. The copy is known by a random number generated on your computer, never by your name. Nothing of what is inside it is sent with it.
What we hold if you sign in
The email address you sign in with; the picture you chose, if you added one; what your plan allows; your subscription and the orders against it, including what our payment provider tells us about each one; the record of your sign-ins, so that a session can be ended. Signing in is needed for a subscription and for installing applications from the App Hub. Browsing the App Hub, making applications and using the ones you have need no account at all.
Ratings and notes
If you rate an application or write a note to its maker, we keep the stars, the note, the application and version it was about, when it was left, and who left it - your account when you were signed in, or the copy of the application it came from. The maker of that application can read the notes left on it, together with your email address if you were signed in, so that they can answer you. Everyone can see an application's average rating; nobody can see who gave which stars.
The days you use an application from the App Hub
While you are signed in to the Synti App Hub, it tells us on which days you opened an application you got from it - which application, and that it was today. Nothing else: not how long, not what you did in it, not anything you keep in it. Each month we count those days into points for the person who made each application - one point for each day each person used it - so that makers can see how much their applications are used. Once a month is counted, the record of who used what on which day is deleted; what is kept is each application's total for the month, with nobody's name in it. A maker sees only their own application's totals, never who gave them. Signed out, nothing is sent.
If you ask to be told when something is out
While an application is not released yet, this website offers to tell you when it is. If you leave your email address there, we keep that address, which page you left it on, and when - and nothing else. It is not an account and it gives you nothing: it is a list of people to write to, once, on the day that application is out. We do not send anything else to it, we never pass it to anyone, and you can have it removed at any time by writing to apps@synti.co.
When you write to us
If you email us, we keep the message and our answer for as long as we need to deal with it and to show what was said, and then we delete it.
What this website records
The site is served by Vercel, which keeps short-lived technical logs (the page asked for, the time, an IP address) for security and to keep the site up. The site asks our own service for what it shows you - today's prices, the latest versions, the catalogue - and loads its typefaces from Google Fonts, which means Google sees that a page was opened. The one thing the site ever sends us about you is an email address you type into it yourself, and only if you do (above). With your agreement, and only then, it counts visits with Google Analytics.
What we never receive
What you asked for. Anything the AI wrote for you. Anything you keep in an application, or do in it. None of it is sent, so none of it can be stored, shared or handed to anybody by us - including under a legal order, because we do not have it.
The AI
Making an application runs on your own Claude or ChatGPT account, on your machine. What you type goes from your computer to Anthropic or OpenAI - whichever you connected - under your own agreement with them, and not through us. The same is true of the assistant inside an application. Your AI credential is kept on your computer, in the system keychain where there is one, and it is never sent to us.
Why we are allowed to hold it
To perform the agreement between us: your account, your subscription, the record of versions that lets an application tell you about an update, and the App Hub. Because we have a legitimate interest: keeping the service safe from abuse, answering what you write to us, knowing how many copies of an application exist so a maker can see how it is doing, and counting the days applications from the App Hub are used, so that their makers can see how much they are used. Because the law requires it: tax and accounting records of what was paid. And with your consent: the analytics cookie on this website, which you may refuse and may withdraw at any time, and your email address if you asked to be told when something is out - which you may withdraw at any time in the same way.
Who else sees it
Convex, which runs the service's database and hosting. Polar, which sells subscriptions as merchant of record and holds the payment details we never see. Vercel, which serves this website. Google, for the typefaces this site loads and - only if you agree - for counting visits. The provider that sends the email with your sign-in code. Each acts on our instructions or as its own controller for what it does; each is bound by its own agreement with us. We do not sell your data, we do not share it for advertising, and we give it to nobody else except where the law obliges us, and then only what is asked for.
Where it is held
Our service and the providers above operate in the European Union and the United States. Where data reaches a country without an adequacy decision, it travels under the European Commission's standard contractual clauses or an equivalent safeguard, which we keep on file.
How long it is kept
The registry of installed copies: while the copy reports in, and up to twelve months after it last did. Your account: until you ask us to delete it. Subscriptions and orders: while the subscription runs, and afterwards for as long as tax and accounting law requires, which in Ukraine is generally three years and may be longer elsewhere. Ratings and notes: while the application is published, and up to twelve months after it is taken down. Which applications from the App Hub you used on which days: until that month is counted, on the first of the next month. Each application's monthly totals, which name nobody: for as long as the application's maker has an account. Correspondence: until it is dealt with, and then up to a year. An address left to be told about a release: until that letter has been sent, and up to six months after, or until you ask us to remove it. Website logs: days, not months.
What you can ask us to do
Ask what we hold about you and get a copy; correct anything wrong; delete it; restrict or object to how we use it; take it with you in a machine-readable form; and withdraw a consent you gave, without affecting what was done before. Write to apps@synti.co from the address you signed in with, and we answer within thirty days. If you believe we have handled your data badly, you may complain to a supervisory authority - in the European Union, the one where you live; in Ukraine, the Ombudsman for human rights.
Deleting your account
Ask us, and we delete your account, your subscription record with what tax law does not make us keep, your ratings and your notes. What we cannot delete is what we never had: your applications and everything in them are on your computer, and removing them is yours to do.
Children
Synti Apps is not for children under 16. We do not knowingly collect anything about them, and if we learn that we have, we delete it.
Keeping it safe
Everything travels over encrypted connections and is held by providers that encrypt what they store. Access to the service's data is limited to the people who run it. Your AI credential and your sign-in session are kept in your computer's own keychain. If a breach ever puts your rights at risk, we tell you and the supervisory authority within the time the law sets.
Decisions made by machine
Nothing about you is decided automatically in a way that has a legal or similarly significant effect. We do not profile you.
Cookies
This website counts visits with Google Analytics, and only if you say yes: until you accept, nothing is kept in your browser, and if you decline, nothing ever is. Accepting lets Google keep a cookie that tells one visit from another; we never use it for advertising. Your answer is itself remembered in your browser so that we do not ask again, and the "Cookie settings" link at the bottom of every page lets you change it at any time.
If you are in the United States
We do not sell your personal information and we do not share it for cross-context behavioural advertising - there is nothing to sell, and the analytics on this site run only if you say yes. Wherever you live in the United States, you may ask what we hold about you, ask for a copy, ask us to correct it or to delete it, and you will not be treated any differently for asking. Write to apps@synti.co; we answer within forty-five days and say so if we need longer. If we refuse, reply to that answer and we look again.
Do Not Track
Browsers send a "Do Not Track" signal that nobody agrees how to read. We do not need it: nothing on this site tracks you unless you accept the analytics cookie, and a Global Privacy Control signal is treated as refusing it.
Changes to this policy
If this policy changes materially, we say so on this site and, where you have an account, we write to you. The date at the top always says when it last changed.
Who we are
Synti Apps is made and run by Synti Labs. Write about anything on this page to apps@synti.co.