Net-Diagnotor Subscription Terms & Auto-Renewal Notice

Effective: 2026-04-21 · Contact: contact@zinben.com

The official page for these terms: https://api-net-diagnotor.zinben.net/legal/subscription-terms.en.html. These terms work alongside the Net-Diagnotor Terms of Service and the Privacy Policy. On subscription matters, these terms take precedence.

Operator: Zinben Technologies Co., Ltd. (臻本(广州)信息科技有限公司, "Zinben"). These terms explain auto-renewal, cancellation, and refunds.


1. Scope

These Terms apply to Basic / Pro membership purchased inside Net-Diagnotor via:

  1. Store auto-renewing IAP: Apple App Store / Google Play / Huawei AppGallery HarmonyOS NEXT Ark build (com.zinben.NetHelp);
  2. OpenDev web checkout: auto-renewing subscriptions bought through the payment page we provide on the official Android app and on desktop;
  3. Huawei Android channel (OpenDev + Huawei IAP consumables): Basic / Pro membership periods and tips on the Android Huawei APK; paid via HMS IAP (consumable SKUs) with orders and valid-until managed by OpenDev — no HMS subscription auto-billing (see §3.1, §4).

They do not govern one-time products (including OpenDev tips) or rewarded Basic short-term day grants after rewarded ads. They take effect together with the relevant store terms:

If these Terms conflict with the relevant store terms, the store's official terms govern.

2. Subscription Products

The App currently offers the following auto-renewing subscriptions (actual list shown in-app):

Exact product names, prices, billing periods, trial information, and entitlements are shown in the in-app "Membership" or "Subscription" page. Each store displays prices in your local currency; if a tier is unavailable on your channel, the live store listing controls.

2.1 Checkout & purchase-page disclosures

Before you complete a purchase in the in-app Membership area, a store subscription page, or the OpenDev web checkout, the payment page shows:

If an on-screen checkout differs from the above, the purchase page / checkout you actually confirm and the relevant payment channel rules control.

3. Auto-Renewal

§3.1 Huawei Android channel (OpenDev + Huawei IAP)

On the Android Huawei app, Basic / Pro membership periods are one-time purchases recorded as OpenDev orders. They are not subject to the store auto-renewal / 24-hour billing rules below. When your period ends, entitlements revert to Free. The app reminds you beforehand. To extend, purchase the same membership again in the membership center. No automatic Huawei account charge after expiry.

§3.2 Store / OpenDev web auto-renewal (§1 items 1–2):

  1. Auto-renewal: unless you turn off auto-renewal at least 24 hours before the current period ends, the subscription will automatically renew for the same period at the then-current price, charged to the payment method tied to your store account.
  2. Charge time: billing occurs within the 24-hour window before the current period ends.
  3. Management: you may view, change, or cancel at any time in the relevant store account settings (see §4).
  4. Price changes: if we change the subscription price, the relevant app store's subscription policy applies. The store may notify you through its own system and, where required by that platform, request your consent before the next renewal takes effect.

4. Cancellation

Cancellation does not immediately end the current period — you keep premium features until the period ends. After cancellation, the subscription will not auto-renew and will revert to the free version when the period ends.

ChannelCancel path
iOS (App Store)iPhone / iPad → Settings → [Apple Account] → Subscriptions → Net-Diagnotor → Cancel Subscription
Android (Google Play)Play Store → profile → Payments & subscriptions → Subscriptions → Net-Diagnotor → Cancel
Huawei AppGallery (Android Huawei APK · OpenDev IAP)No HMS subscription auto-renewal; watch in-app renewal prompts; repurchase in the membership center after expiry
Huawei AppGallery (HarmonyOS NEXT Ark)AppGallery → Me → Subscriptions → Net-Diagnotor → Cancel
OpenDev web subscriptionManage renewal in the checkout / payment provider; or email contact@zinben.com

Cancellation via other channels (Apple Care, Google Play support, Huawei support) follows the relevant platform's policy.

5. Refunds

Refunds for store-purchased subscriptions are handled by the relevant platform. We cannot refund store-purchased subscriptions directly.

ChannelRefund entry
iOS (App Store)https://reportaproblem.apple.com
Android (Google Play)https://play.google.com/store/account/orderhistory or https://support.google.com/googleplay/answer/2479637
Huawei (Android / HarmonyOS NEXT)AppGallery → Me → Orders → Refund; or https://consumer.huawei.com/en/support/
OpenDev web subscriptionPer OpenDev checkout / payment-provider rules; or contact@zinben.com

When an app store tells us a purchase was refunded or revoked, we remove the related entitlement immediately. Time already used is not refundable.

6. Cross-Device Restore

  1. After signing in to the same store account on another device, tap "Restore Purchases" in the in-app Membership page to restore.
  2. We sync subscription status automatically from the purchase record in the relevant app store. No further action is required.
  3. The platform server's response is authoritative.

7. Family Sharing

Not enabled: subscriptions in this App do not participate in Apple Family Sharing / Google Play family library / Huawei family group sharing. Each account subscribes independently. If we enable family sharing in the future, we will announce it in a release note.

8. Free Trial (if applicable)

If a product includes a free trial (currently often configured as 7 days, but the store listing controls):

  1. Full premium features are available during the trial.
  2. The trial automatically converts to a paid subscription at the end and a charge is made. Turn off auto-renewal at least 24 hours before the trial ends to avoid being charged.
  3. Each store account is generally limited to one free trial per product; the relevant platform's rule applies.

9. Subscription Data Collection

Data types, purposes, and retention for subscription data are described in Privacy Policy §7 — Subscription & Purchase Data.

We do not collect: credit card info (handled by the payment platforms), Apple ID / Google Account / Huawei Account, family member information.

10. Customer Support

For subscription-related questions: contact@zinben.com

We respond within 5 business days.

11. Relationship with Company-Wide Master Terms

Net-Diagnotor is operated by Zinben. These terms are how the company-wide Terms of Service and Privacy Policy apply to Net-Diagnotor subscriptions. Where they do not conflict, these terms apply first. Matters not covered here follow the relevant company-wide document. The company name and those links are at the bottom of this page.


Zinben Net-Diagnotor Team · Last updated: 2026-05-31