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Terms of Service

Last updated · October 6, 2026

These terms govern your use of Castla — the mobile app, this website and the receiver page that runs in your car's browser. By using Castla you accept them. If you do not accept them, do not use Castla.

What Castla is

Castla mirrors your phone's screen to the web browser already built into your car. Nothing is installed in the car: you open a page in the car's own browser and stream to it from the app on your phone.

Castla is an independent product. It is not affiliated with, endorsed by or sponsored by Tesla, Inc.

Safety while driving

Do not use Castla while driving. Start a mirroring session only while the vehicle is parked, and look at what you are mirroring only while the vehicle is parked.

A moving vehicle is not a place to watch a screen. You remain fully responsible for operating your vehicle safely and for complying with the traffic laws that apply where you drive — including the rules about screens, displays and driver distraction. We are not responsible for what you choose to mirror, for when you choose to mirror it, or for any consequence of using Castla while the vehicle is in motion.

If a passenger is using the screen, the driver is still the person responsible for the vehicle.

Your account

Castla accounts are anonymous and tied to your device. You may link an Apple or Google account so that your subscription follows you to a new device. You are responsible for the device and for the linked account you use to reach Castla, and for everything done through them.

You must be old enough to enter into a contract where you live in order to buy a subscription. Castla is not directed at children; see our Child Safety Standards.

Subscription, automatic renewal and cancellation

Castla is a paid subscription. Monthly and yearly plans are offered. Current prices are shown in the app and on this website, and in your local currency in the store at the moment of purchase.

  • Automatic renewal. Subscriptions renew automatically at the end of each period unless you cancel before it ends. You are charged by the store you bought from.
  • How to cancel. Cancel at any time in your App Store or Google Play subscription settings. Cancellation happens in the store, not through us — we cannot cancel a store subscription on your behalf. Cancelling takes effect at the end of the period you have already paid for; you keep access until then.
  • Refunds. Refunds for purchases made through the App Store or Google Play follow Apple's and Google's own refund rules and are decided by them, not by us. For a subscription paid by card through Stripe, write to us.
  • Price changes. If a price changes, the new price applies to renewals after we have told you about it. It is never applied retroactively to a period you already paid for.

Deleting your Castla account does not cancel a store subscription. If you delete your account, cancel the subscription in the store as well, or it will keep renewing.

Fair use

Do not use Castla to break the law, to infringe anyone's rights, to work around the app's technical limits or its payment checks, to resell or redistribute access, or to attack, overload, scrape or probe our infrastructure. We may suspend or terminate an account used for any of this.

The service is provided "as is"

Castla is provided as is and as available, without warranties of any kind, whether express or implied, including any implied warranty of merchantability, fitness for a particular purpose or non-infringement.

Mirroring depends on things we do not control: your phone, your vehicle, the browser built into the vehicle and its software version, your network, and the quality of the connection between them. We do not warrant that mirroring will work with every vehicle, in every condition, or after a vehicle software update; nor that the service will be uninterrupted, timely, secure against every attack, or free of errors.

Limitation of liability

To the fullest extent permitted by law, we are not liable for indirect, incidental, special, consequential or punitive damages, nor for lost profits, lost data or loss of use, arising out of or in connection with your use of Castla — including any traffic accident, fine or penalty arising from using a screen while driving.

Where liability cannot be excluded, our total liability for any claim is limited to the amount you paid us for Castla in the twelve months before the event that gave rise to the claim.

Nothing in these terms limits liability that cannot be limited by law, including liability for death or personal injury caused by negligence, or for fraud. If you are a consumer, your mandatory statutory rights are not affected by these terms.

Privacy

What we collect and why is set out in our Privacy Policy. The short version: we never record or store the picture or the sound from your screen.

Termination

You may stop using Castla at any time, and delete your account from inside the app or at castla.app/account-delete. Deleting your account ends these terms between us, except for the clauses that by their nature survive — limitation of liability, and the records we must keep for accounting.

We may suspend or terminate your access if these terms are breached, or if we have to stop offering the service. If we discontinue Castla, we will give notice in advance where we reasonably can.

Changes to these terms

We may update these terms. The date shown at the top of this page is when they last changed. If a change is significant we will tell you in the app. Continuing to use Castla after a change means you accept the updated terms.

Governing law

These terms are governed by the laws of the Republic of Türkiye. If you are a consumer, this choice does not deprive you of the protection of the mandatory consumer rules of the country where you live, and you may bring a claim in the courts there.

Contact

Write to [email protected].