Terms of Service

1. Eligibility

You must be at least 18 years old, or have the consent of a parent or legal guardian, to use the app. By using it, you represent that you meet this requirement and that the information you provide is accurate. Users under 18 may not sign in, use cloud backup or make any purchase.

2. Licence to Use the App

Subject to these Terms, we grant you a personal, limited, non-exclusive, non-transferable and revocable licence to use the app for your own personal, non-commercial purposes. You may not copy, modify, reverse-engineer, resell, scrape, or create derivative works from the app or its content except as expressly permitted by law — but you may share your own report or share-card through the app’s built-in sharing features.

4. Accuracy and Methodology

Charts and readings are generated from traditional rules and astronomical approximations applied to the birth data you supply. We do not warrant that any result is accurate, complete or reliable, and we are not responsible for results affected by incorrect or incomplete data entered by you.

We may improve our calculation methods, interpretive wording and report content from time to time, so reports generated later may differ from earlier ones. Each report reflects the methods and content in place when it was generated (its version is shown on the report). When you open a report generated by an older version, the app may regenerate the same report with the current version in the background and replace the old copy (the report number stays the same); beyond that, we are not obliged to update a report already generated.

5. Your Account and Data

The app works without an account; your charts are stored on your own device. If you choose to enable optional cloud backup by signing in, the backup is stored in your own Google account (a hidden app-data folder in your Google Drive) and our servers never hold your charts (only the account records listed in section 4 of the Privacy Policy, such as a one-way chart identifier). You are responsible for maintaining the confidentiality of your sign-in credentials and for all activity under your account. You must notify us promptly of any unauthorised use. Our handling of your data is described in our Privacy Policy and Personal Information Collection Statement.

6. Acceptable Use

Pro reports are “unlimited, subject to fair use”: unlimited means one person using the app for themselves. Use that is clearly unusual compared with that — in particular automated or bulk generation of reports, or generating reports in order to copy or reverse-engineer how the app calculates — is not covered, and we may pause or limit it.

You agree not to:

• use the app for any unlawful, infringing or fraudulent purpose;
• attempt to gain unauthorised access to the app, our systems, or another user’s data;
• generate reports or extract content by bot, script, or any interface other than the official app or website;
• use the app or its reports commercially or in bulk (for example, mass-producing reports for others or reselling them), or share one account among several people;
• interfere with, disrupt, or place undue load on the app or its infrastructure; or
• remove, obscure or alter any proprietary notices, including the names and mascot of Bilibala Shadowpaw Limited.

7. Intellectual Property

The app and all of its content, design, software, text, graphics, and the “ShadowBlack” mascot are owned by or licensed to Bilibala Shadowpaw Limited and are protected by intellectual-property laws. All rights not expressly granted to you are reserved. Third-party brand marks (such as the Threads logo) remain the property of their respective owners.

8. Third-Party Services

The app relies on third-party services, including Google Firebase (for optional sign-in, app hosting and push notifications), Google reCAPTCHA (app-integrity checks), Stripe (web payments), Apple (optional sign-in on the iOS version) and your own Google account (cloud backups are stored directly in your own Google Drive), as well as the Apple App Store / Google Play (for native distribution and in-app purchases). Your use of those services is also subject to their own terms and privacy policies, over which we have no control.

9. Tips, Subscriptions, One-Time Reports and In-App Purchases

The app may offer an entirely optional “tip” (for example, “Buy us a coffee”). A tip purchases no additional functionality, content or services — it is simply a way to support continued development. On Android copies distributed through Google Play, tips are processed by Google Play Billing, and your use of Google Play and any purchase is also governed by the Google Play Terms of Service and Google’s payment and refund policies; on the web, tips are processed by our payment provider, Stripe. We never receive or store your card or payment details. Because tips are voluntary, they are non-refundable except as provided by the applicable platform’s refund policy or where required by law.

The analysis-report feature offers a subscription (Pro). Pro is an annual subscription. On the web it is sold in US dollars and processed through Stripe’s hosted checkout page; in the Android version distributed through Google Play it is bought and priced through Google Play Billing. It renews automatically each year. You may cancel at any time — web subscriptions via the in-app billing link (which opens the Stripe billing portal), Android subscriptions in Google Play → Subscriptions; after cancelling, you keep Pro features until the end of the paid period (Hong Kong time), and are not charged again. The daily report quotas included with each plan (for example, one per day on the free tier; Pro has no published daily limit on reports; a high technical limit applies to prevent abuse, under the fair-use rule in Section 6) may change from time to time, with notice of material changes. However, any reduction in quotas applies only to subscriptions started or renewed after the change — never to a period you have already paid for — and if we discontinue the analysis-report feature during a paid period, you will receive a pro-rata refund of the unused part of that period. Web subscriptions are also governed by Stripe’s terms of service, and Android subscriptions by the Google Play Terms of Service and Google’s payment and refund policies; except where required by law, used paid periods are non-refundable, and future periods are avoided simply by cancelling. Refund requests for a subscription bought through Google Play are handled by Google under its policies, and if Google refunds or reverses the payment your Pro access ends at once. Web subscription checkout is not offered inside the Android (Google Play) and iOS (App Store) app versions, and in-app purchase is not yet available in the iOS version.

The two-year outlook (進階運程) is a one-time purchase, not a subscription, and does not renew. On the web it is sold in US dollars and processed through Stripe’s hosted checkout page; in the Android version distributed through Google Play it is bought and priced through Google Play Billing. Each purchase unlocks one birth chart for one two-year edition (an edition covers two consecutive Chinese solar years, each beginning at Lichun; the edition on offer moves to the next one every 1 December) and is tied to your account. Holders of an active Pro annual pass may generate the current edition for any chart during the paid period at no extra charge. The first single-report purchase on your account may be offered at a reduced introductory price (currently 90% off), once per account (whichever platform you buy on), for single reports only, and not combinable with other offers. The outlook is generated as soon as payment is confirmed and is delivered as digital content; by purchasing you ask us to begin supply immediately and, except where required by law, it is non-refundable once generated. If you buy through Google Play, refund requests are handled by Google under its policies, and if Google refunds or reverses the payment we withdraw that unlock. If payment succeeds but the outlook cannot be generated, we will generate it again for you or refund you. A chart and edition that are already unlocked are not charged twice. Unlock records are kept against your account; if you close your account they are deleted and cannot be restored, although reports already saved on your device remain there. Web checkout is not offered inside the Android (Google Play) and iOS (App Store) app versions; whether you unlock on the web or in the Android version, the content is available on the same account in every version (in-app purchase is not yet available in the iOS version). The ratings in an outlook are this app’s own relative indicators and are not predictions (see the Disclaimer).

12. Indemnity

You agree to indemnify and hold harmless Bilibala Shadowpaw Limited and its personnel from any claims, losses, liabilities and expenses (including reasonable legal fees) arising from your misuse of the app or your breach of these Terms.

13. Changes to the App and These Terms

We may modify or discontinue the app, or any feature, at any time. We may also update these Terms; when we do, we will revise the version and date above and, where the changes are material, seek your acceptance again. Your continued use after changes take effect constitutes acceptance.

14. Suspension and Termination

We may suspend or terminate your access to the app (or to cloud backup) if you breach these Terms or use the app in a way that may cause harm or legal liability. If we terminate your Pro access because of a breach of Section 6, we will refund the unused part of your paid subscription pro rata, unless the breach involves fraud (including payment fraud or chargeback abuse). You may stop using the app at any time and delete your local and backed-up data.

15. Governing Law and Jurisdiction

These Terms are governed by the laws of the Hong Kong Special Administrative Region. You agree to submit to the non-exclusive jurisdiction of the Hong Kong courts.

16. General

If any provision of these Terms is found unenforceable, the remaining provisions remain in full effect. Our failure to enforce a right is not a waiver of it. These Terms, together with the Disclaimer and Privacy Policy, are the entire agreement between you and us regarding the app. The English version of these Terms prevails over any translation.

17. Contact

Questions about these Terms? Contact Bilibala Shadowpaw Limited at info@bilishadowpaw.com; our registered office is at Unit A, 19/F., Hillier Commercial Building, 65-67 Bonham Strand, Sheung Wan, Hong Kong.