Legal & PoliciesSubscription Terms

Subscription Terms

Effective Date: July 21, 2026
Last Updated: October 24, 2026

This Premium Subscription Service Agreement (the “Agreement”) is a legal agreement between you (“User” or “You”) and Nextaix Studio, an independently operated studio based in China (“Service Provider”, “We”, or “Us”) concerning the Premium Subscription Service made available through Mr. Zero: ADB Game Booster (the “App”). By purchasing, activating or using the Premium Subscription Service you agree to be bound by this Agreement.

Related documents: this Agreement incorporates and is to be read together with the App’s Terms of Service (Terms of Use) and Privacy Policy, which are linked below:

1. Agreement Overview

This Agreement sets out the terms under which the Service Provider offers and you obtain access to the Premium Subscription Service. By subscribing or otherwise activating the Premium Subscription you confirm that you have read, understood, and agree to be bound by this Agreement and by the App’s Terms of Service and Privacy Policy. If you do not agree, do not subscribe and do not use the Premium Subscription.

2. Subscription Service Description

2.1 Service Content

The Premium Subscription provides enhanced features, services and/or content as set forth in the App. The precise content and functionality of the Premium Subscription are displayed in the App and may vary by geographic region, device type and platform. The Service Provider reserves the right to modify features, content, and functionality subject to the terms of this Agreement and applicable law. Pro access covers the features shown in the App for the selected offer; feature availability depends on the device and permissions. Changes remain subject to confirmed purchase rights and any notice, consent, or remedies required by applicable law.

2.2 Subscription Types

The App offers the following auto-renewing subscription options where available in Google Play:

Available subscription types, their durations, trial offers and promotional pricing (if any) will be shown at the point of sale within the App.

3. Payment and Billing

3.1 Payment Methods

Subscription fees are charged through the platform or app store through which you purchased the subscription (Google Play on Android). The applicable platform’s payment methods, billing cycles and purchase flow apply. We do not collect or store your payment card information.

3.2 Billing Cycle

Subscription fees are charged in advance and will be billed in accordance with the subscription period you selected. The exact amount and currency will be displayed at the time of purchase.

3.3 Price Changes

We reserve the right to change subscription prices. We will provide notice of price changes in accordance with applicable law and platform rules. Any price change will take effect at the next renewal period after notice has been given and any consent required by applicable law or Google Play rules has been obtained. If you do not agree to the change, you may cancel the subscription prior to the next renewal.

4. Auto-Renewal Terms

4.1 Auto-Renewal Mechanism

Subscriptions are set to renew automatically at the end of each subscription period unless you cancel prior to renewal. To avoid being charged for the next period, you must cancel the subscription before the renewal deadline shown by Google Play, subject to applicable law. Renewal charges will be made through the platform that managed your original purchase.

4.2 Promotional and Trial Period Terms

Trial Periods: If a free trial is offered, the free trial period is 3 days for the monthly plan or 7 days for the annual plan, when confirmed in the Google Play offer. You will be informed of the subsequent automatic billing before subscribing. If you do not cancel before the applicable trial ends, the subscription will automatically convert to a paid subscription and you will be charged the applicable fee. Trial availability and eligibility depend on the offer actually displayed by Google Play before purchase.

Limited-Time Promotional Pricing: Promotional offers apply only for the number of billing periods specified in the promotional offer. After the promotional period concludes, the subscription will renew at the standard price.

Trial + Promotional Combination: Where a trial is followed by promotional pricing the terms of both the trial and the promotion apply as described at the point of sale.

All promotional and trial terms will be clearly disclosed at the point of purchase.

4.3 Renewal Reminders

Renewal reminders and notification methods are governed by applicable law and the policies of the platform used to purchase the subscription.

5. Cancellation and Refund Policy

5.1 Cancellation of Subscription

You may cancel your subscription at any time via the platform you used to purchase the subscription:

Cancellation must be completed in accordance with the platform’s procedures. If you cancel, access to Premium features will continue until the end of the current paid period unless applicable law or the platform provides otherwise.

5.2 Refund Policy

Platform Refunds: Refunds are subject to the refund policies of the platform that processed your purchase. We do not control the platform’s refund decisions. If you seek a refund, you should follow the refund process of the platform where you made the purchase, and contact support@nextaix.com for assistance or to provide information about the request.

Statutory Rights: In certain jurisdictions, consumers have statutory rights (for example, a right to withdraw within a specified period). Such statutory rights apply in addition to the platform’s refund policy and cannot be waived by this Agreement. To the extent local mandatory law provides consumers with refund, withdrawal or cancellation rights that are more favorable than this Agreement, those statutory rights will apply.

5.3 Access Rights After Service Termination

If you cancel automatic renewal, access to Premium features will ordinarily continue until the end of the current paid billing period, subject to applicable law and Google Play rules. This does not prevent lawful suspension or termination under section 7.2, or earlier loss of access following a refund and revocation under Google Play rules. Any refund or other remedy required by applicable law remains available. After expiration of the paid period, paid subscription access ends as reflected by Google Play, while any access independently made available in the App is governed by its current offering.

6. User Rights and Obligations

6.1 User Rights

During the effective paid subscription period you are entitled to:

6.2 User Obligations

You agree to:

You shall not misuse the Service, attempt to bypass platform controls (including trial or promotional restrictions), or use the Service in violation of applicable law.

7. Service Changes and Termination

7.1 Service Changes

We reserve the right to modify, suspend, or discontinue any part of the Premium Subscription at any time. Where such changes are material and adversely affect the core functionality of a paid subscription, we will provide notice, subject to legal and platform obligations, and will evaluate remedies such as refunds, pro rata credits or alternative features where required by applicable law.

7.2 Account Termination

If you materially breach this Agreement, the Terms of Service or engage in fraudulent or abusive behavior, we may suspend or terminate your subscription and access to the App’s Premium features. Termination for cause does not relieve you from obligations accrued prior to termination.

8. Regional Compliance

8.1 EU User Rights

If you are resident in the European Union (EU) or European Economic Area (EEA), you may have specific consumer protections under EU law, which may include cancellation/withdrawal rights (for example a 14-day “cooling-off” period) and additional information and consent requirements for automatic renewals. Where such rights apply, they cannot be waived.

8.2 US User Rights

Users in the United States may have additional consumer protections under state and federal law. In particular, residents of certain states (such as California) may have additional privacy and consumer-protection rights (for example under CCPA/CPRA), which will be addressed in the Privacy Policy and implemented where applicable.

8.3 Other Regions

We will comply with applicable laws and regulations of the user’s jurisdiction where we provide services. Local mandatory consumer protection provisions (including refund/withdrawal rights and requirements regarding automatic renewal disclosures) will govern to the extent they conflict with this Agreement.

9. Data Protection and Privacy

All collection, use, storage, and processing of personal data in connection with the subscription service are governed by the App’s Privacy Policy. The Privacy Policy describes in detail the types of data we collect, the purposes for which we process personal data, data retention information, and the rights available to data subjects (including rights under GDPR, CCPA/CPRA, LGPD and other applicable laws where relevant). By subscribing, you acknowledge that you have read and accepted the Privacy Policy.

10. Disclaimers

10.1 Service Availability

We will use commercially reasonable efforts to provide continuous access to the Premium Subscription, but we do not guarantee uninterrupted or error-free service. Platform outages, maintenance, Internet connectivity issues, and other events outside our reasonable control may cause temporary interruptions.

10.2 Limitation of Liability

To the maximum extent permitted by applicable law, the Service Provider’s aggregate liability to you for any and all claims arising out of or in connection with this Agreement shall not exceed the total fees paid by you for the relevant Game Booster subscription, in the twelve (12) months preceding the event giving rise to the claim. Neither party shall be liable for indirect or consequential losses arising from this Agreement, subject to the exceptions below. Direct losses are subject to the lawful cap above and its exceptions. Nothing in this section excludes or limits liability for fraud, willful misconduct, gross negligence, personal injury, or any other liability that cannot lawfully be excluded or limited. This section does not limit statutory refund, repair, replacement, or other mandatory consumer remedies.

11. Dispute Resolution

11.1 Applicable Law

This Agreement shall be governed by and construed in accordance with the governing law provisions set forth in the applicable Terms of Service, except to the extent that mandatory consumer protection laws of the User’s place of residence require the application of a different governing law.

11.2 Dispute Resolution Methods

Any dispute, claim, or controversy arising out of or relating to this Agreement, the Premium Subscription Service, or any related transactions shall be handled in accordance with the dispute resolution provisions set forth in the applicable Terms of Service, which are hereby incorporated by reference and form an integral part of this Agreement.

Nothing in this Agreement shall be interpreted as limiting or waiving any rights that cannot be lawfully waived under applicable consumer protection laws, including, where applicable, the right to bring claims before small-claims courts or to seek mandatory statutory remedies in the User’s jurisdiction of residence.

12. Agreement Modifications

We may update or modify this Agreement from time to time. For material changes that adversely affect your rights or obligations, we will provide notice by email (if you provided one), in-app notice or other means as required by law and relevant app store policies, and may, where required, obtain your consent. Unless otherwise required by law, continued use of the Premium Subscription following notice constitutes acceptance of the revised Agreement. We will identify revisions by the "Last Updated" date at the top of this Agreement. Material changes take effect after any notice or consent required by applicable law.

13. Contact Information

If you have any questions about this Agreement, or wish to contact us regarding cancellations, refunds, or legal matters, please contact:

Email: support@nextaix.com

14. Other Terms

14.1 Entire Agreement

This Agreement, together with the App’s Terms of Service and Privacy Policy, constitutes the entire agreement between you and the Service Provider concerning the Premium Subscription and supersedes all prior or contemporaneous communications, representations, or agreements, whether oral or written, about the subject matter.

14.2 Severability

If any provision of this Agreement is held to be invalid, illegal, or unenforceable in any jurisdiction, the remaining provisions shall remain in full force and effect and the invalid, illegal or unenforceable provision shall be construed, to the extent possible, to reflect the parties’ original intent.

14.3 Language Versions

If this Agreement is translated into other languages, the English version shall govern in the event of any inconsistency, except where local law requires otherwise. For consumers in jurisdictions where a local language version is required by law, the local language version will prevail to the extent required by applicable law.

By purchasing the Premium Subscription, you confirm that you have read and agree to the terms of this Agreement, the App’s Terms of Service and the Privacy Policy.