Terms of Use

Nulla is an iPhone app published by Vadim Semenko (ZeroSix Studio). By installing it you agree to the terms below.

The licence

You get a personal, non-transferable licence to use Nulla on devices you own, under Apple's Licensed Application End User Licence Agreement. You may not resell it, or take it apart to build a competing product.

Free and Pro

The free plan includes one set, up to eight apps, all three themes and every widget size, with no end date. Pro adds schedules, app blocking, unlimited sets and apps, and five widget wallpapers.

Pro is sold through the App Store as a yearly subscription or a one-time purchase; the price for your country is shown by the App Store before you confirm. There is no trial: the charge happens at purchase. If a subscription ends, Nulla returns to the free plan — your other sets stay on the device and become available again if you subscribe.

Billing, renewal, refunds

Subscriptions are billed by Apple and renew automatically unless cancelled at least 24 hours before the period ends. Manage or cancel in iOS Settings → your Apple Account → Subscriptions. Refunds are handled by Apple, not by us.

App blocking

Blocking is built on Apple's Family Controls and only ever applies to apps and categories you select, for windows you set. A session can be ended at any time in one tap. Nulla is a focus tool, not a safety or supervision system — do not rely on it to restrict anyone's access to emergency services or to a device.

What Nulla is not

iOS does not allow an app to replace the home screen, and Nulla does not claim to. It is a widget you place on a home screen page of your own making. Nulla is an independent app and is not affiliated with Apple Inc.

Warranty and liability

The app is provided “as is”, without warranties beyond those required by law. To the extent permitted by law, liability is limited to the amount you paid for Nulla in the twelve months before the claim. Nothing here removes rights you have as a consumer.

Changes and contact

Terms may change as the app changes; the date above is updated when they do. Questions: [email protected].