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Legal

Terms &
Privacy

Last updated: April 15, 2026 Sero Lock — iOS App
01

Privacy Policy

Zero data collected

Sero does not collect, store, transmit, or share any personal data. The app runs entirely on your device. No accounts. No analytics. No servers. Nothing leaves your iPhone.

What we collect

Nothing. Sero does not collect any information about you, your device, or how you use the app — no names, email addresses, device identifiers, IP addresses, usage data, crash reports, or any other form of information.

How the app works

Sero uses Apple's Screen Time API to restrict access to apps you choose. All configuration — blocked apps, time limits, schedules — is stored locally on your device using iOS system storage. No data is ever sent to external servers because we don't operate any servers for the app's core functionality.

Third-party services

Sero does not integrate any third-party analytics, advertising, crash reporting, or tracking SDKs. The App Store is operated by Apple and subject to Apple's own privacy policy, which governs the download process independently.

Children's privacy

Sero is rated 9+ on the App Store. Because we collect no data whatsoever, there is no data collected from users of any age, including children under 13.

Changes to this policy

If we ever change our data practices, we will update this page and revise the effective date. Any material change that involves data collection will be communicated through an App Store update note. As long as this page states "Zero data collected," nothing about you is being processed.


02

Terms of Use

By downloading or using Sero, you agree to these terms. If you do not agree, please do not use the app.

Use of the app

Sero is designed to help you limit access to distracting apps using Apple's Screen Time API. You agree to use Sero only for lawful purposes and in accordance with these terms. You may not use Sero to restrict apps on devices you do not own or control without authorization.

No warranty

Sero is provided "as is" without warranty of any kind, express or implied. We do not guarantee that the app will be error-free, uninterrupted, or that it will meet your specific requirements. App blocking functionality depends on Apple's Screen Time framework and may be affected by iOS updates.

Limitation of liability

To the extent permitted by applicable law, Almaz Kussainov shall not be liable for any indirect, incidental, special, or consequential damages arising from your use of or inability to use Sero. Our total liability shall not exceed the amount you paid for the app.

Intellectual property

The Sero name, logo, and all related content are the property of Almaz Kussainov. You may not reproduce, distribute, or create derivative works without prior written permission.

Changes to terms

We may update these terms from time to time. Continued use of the app after changes constitutes acceptance of the new terms. We will communicate material changes through App Store update notes.

Governing law

These terms are governed by the laws of the Republic of Kazakhstan. If you are a resident of the European Union, the laws of your country of residence may also apply.


03

App License (EULA)

Apps made available through the App Store are licensed, not sold, to you. Your license to Sero is subject to Apple's Standard End User License Agreement ("Standard EULA").

Scope of license

We grant you a non-transferable license to use Sero on any Apple-branded devices that you own or control, as permitted by Apple's Usage Rules. You may not distribute or make the app available over a network where it could be used by multiple devices simultaneously. You may not reverse-engineer, disassemble, or attempt to derive the source code of Sero.

Consent to use of data

As described in our Privacy Policy above, Sero does not collect personal data. No technical data is transmitted from your device to our servers in connection with the app's core functionality.

Termination

This license is effective until terminated. Your rights under this license will terminate automatically if you fail to comply with any of its terms. Upon termination, you must cease all use of the app and delete it from your devices.

External services

Sero may utilize Apple's Screen Time framework. Your use of Apple services is subject to Apple's own terms and privacy policies. We are not responsible for Apple's services or any changes Apple makes to Screen Time functionality.


04

Pricing & Refunds

Sero is free to download. Core features are available at no cost. A Premium plan unlocks additional capabilities for power users.

Free
$0forever

1 block session at a time, daily app time limits, 1 game unlock try per session.

Premium
$5.99/ month

$49.99 / year (save 30%). Multiple sessions, quick extends, unlimited game tries, and everything in Free.

Refund policy

Premium subscriptions are processed entirely through the Apple App Store. Sero does not collect or have access to your payment information. For refund requests, please contact Apple directly via reportaproblem.apple.com.

If you have a billing concern you'd like to raise with us directly, contact almaz.kssnv@gmail.com and we'll do our best to help.

Cancellation

You can cancel your Premium subscription at any time through your iPhone's Settings → Apple ID → Subscriptions. Cancellation takes effect at the end of the current billing period. You will not be charged again after cancellation.


05

Get in Touch

Questions about these terms, the privacy policy, or anything else — reach out directly.

Email: almaz.kssnv@gmail.com

We respond to all enquiries. For App Store refund requests, please contact Apple Support directly as we do not have access to App Store transaction data.