Last updated: 18 October 2026
Thank you for choosing SuiYin.
SuiYin (the \「App\」) is independently developed and operated by Liang Jialiang (\「we\」, \「us\」 or the \「Developer\」).
This SuiYin User Agreement (this \「Agreement\」) is the effective agreement concluded between us and you regarding your use of the App.
This Agreement, together with any single-purpose rules, terms or operational notices displayed within the App, collectively constitute this Agreement. They are inseparable and you must comply with all of them.
Please read this Agreement carefully and in full, paying particular attention to the clauses in bold that disclaim or limit liability, and the clauses governing dispute resolution.
By ticking \「I agree\」 or by actually using the App, you confirm that you have read, fully understood and accepted this Agreement in its entirety.
If you do not agree with any part of this Agreement, or cannot accurately understand it, please stop using the App and take no further action.
3.1 You must be a natural person with full capacity for civil conduct. If you are a person without or with limited capacity for civil conduct, please read this Agreement together with your guardian and use the App only with your guardian's consent.
3.2 You expressly represent and warrant that you have sufficient legal rights or authorisation to enter into and perform this Agreement, and that doing so will not conflict with, or cause a breach of, any other agreement or arrangement you are required to perform.
3.3 If the laws of your country or region exclude all or part of this Agreement, you must stop using the App immediately; otherwise, your continued use is deemed an assumption of the relevant legal risks and liabilities.
The App is a local bookkeeping tool for HarmonyOS, providing income and expense recording, account management, budgeting and statistical reports.
The App's core data is stored locally on your device. We do not provide cloud storage, nor do we actively collect or upload your accounting records.
The App offers an optional Huawei ID sign-in, used solely to display your profile picture and nickname in the App. This feature is independent of your accounting data: whether you sign in does not affect the bookkeeping features, and your sign-in status confers no ownership of, or right of access to, your accounting data.
The App is currently provided free of charge. We reserve the right to charge for certain premium features in future, with advance notice given via in-app announcement.
5.1 Any operation or instruction you perform using your identity credentials is deemed to be performed by you personally. Risks and losses arising from the misuse, theft or unlawful use of your account, password or backup password due to your own reasons shall be borne by you.
5.2 When using the backup feature, be sure to remember the backup password you set. Backup files are encrypted locally; if the password is lost, the file cannot be decrypted and we cannot assist in recovering it.
5.3 Please evaluate your own actual needs, fully understand the purpose and limitations of each feature, and decide for yourself whether to use it.
5.4 You bear the consequences and losses arising from your own input errors, improper operation or wrong selections.
All accounting data you enter in the App is stored locally on your device. We cannot access it and cannot restore it for you.
Data may be lost, and we accept no obligation to restore it, in the following circumstances: uninstalling the App; clearing app data or performing a factory reset; loss, damage or system failure of your device; write failures caused by insufficient storage space.
When switching devices, please complete a backup export on the old device first, then import it on the new device via \「Restore from Backup\」.
We strongly recommend that you export backups regularly and keep them in a safe location outside your device.
7.1 The App is a bookkeeping aid only. The data and statistics it produces are for reference only and do not constitute any financial, tax, investment or legal advice. You bear all risks arising from any decision made on the basis of data in the App.
7.2 The App is provided \「as is\」. We will endeavour to keep it stable, but we do not warrant that the service will be uninterrupted or error-free.
7.3 We accept no liability for losses caused by force majeure, system failures, device compatibility issues, or interruption of third-party services (including Huawei ID services) that are beyond our reasonable control.
7.4 Exchange-rate data used by the App's currency conversion feature comes from third-party public sources, is for reference only, and must not be used as a basis for any transaction or settlement.
You must comply with applicable laws and regulations when using the App, and must not use the App for any unlawful conduct, including but not limited to:
(1) Publishing, transmitting, distributing or storing information that endangers national security, undermines social stability, violates public order or good morals, or contains insult, defamation, pornography or violence;
(2) Conduct that infringes others' intellectual property rights, trade secrets or other legitimate rights and interests;
(3) Deliberately fabricating facts or concealing the truth in order to mislead or deceive others;
(4) Reverse-engineering, decompiling or cracking the App, or removing or altering the copyright notices and rights statements within it;
(5) Any other conduct prohibited by laws and regulations.
If your breach of this Article causes damage to any third party, you shall bear liability independently; you shall also compensate us for any loss we suffer as a result.
We may amend this Agreement from time to time. The amended Agreement will be published in the App, and where necessary we will notify you within a reasonable period before the change takes effect via in-app announcement.
Where an amendment materially affects your rights, we will notify you in a prominent manner. For amendments made to satisfy security, legal or regulatory requirements, we may be unable to give advance notice, but will notify you as soon as possible.
If, following an amendment, you do not accept the modified Agreement, please stop using the App immediately; your continued use is deemed acceptance of the modified Agreement.
The conclusion, performance, interpretation and dispute resolution of this Agreement are governed by the laws of the People's Republic of China.
The place of conclusion of this Agreement is the domicile of the Developer.
Any dispute arising out of this Agreement shall be resolved through friendly negotiation; failing which, either party may bring an action before the people's court having jurisdiction at the place of conclusion.
If you have any questions, comments or suggestions about this Agreement, please contact us via \「Me → Feedback\」 in the App, or by email to liangandy@petalmail.com, or add WeChat LiangAndy26.
We will respond within 15 working days of receiving your feedback.