This agreement is entered into between you ("the User") and the developer ("we", "us") regarding your use of Digital Wallet (数字卡包, "the App"). Please read it carefully before use; by starting to use the App you accept all of these terms. If you do not agree with any term, stop using the App and uninstall it immediately.
1.Description of the Service
1.1The App is a local document and file management tool that provides you with:
entry, editing, search, and batch management of document fields;
on-device encrypted storage and preview of document photos and attachments;
local notification reminders for documents nearing expiry;
custom wallet categories and fields;
passphrase-encrypted local backup and restore;
export of watermarked photos and documents.
1.2The App offers no cloud sync, no multi-device sync, and no data hosting of any kind. All data is stored only on the device you are currently using.
1.3Whether the App is paid or free is determined by what the App Store actually displays. Specific in-app purchases, subscription periods, and cancellation rules follow whatever the App Store shows at the time and Apple's own policies.
2.User Conduct
You undertake, while using the App, that you will:
2.1strictly comply with the laws, administrative regulations, and public order and good morals of the People's Republic of China;
2.2enter only documents and files that belong to you personally or that you are lawfully authorised to hold, and never enter another person's identity information for an unlawful purpose;
2.3not use the App to infringe the lawful rights of others, including but not limited to:
impersonating another person to transact business;
storing another person's documents or commercial contracts without authorisation;
selling or reselling the App's backup files or exports.
2.4not reverse engineer, decompile, or disassemble the App to obtain its source code, except where expressly permitted by applicable law;
2.5not use the App's export feature to produce falsified copies of documents for any unlawful purpose.
3.Accounts, Credentials, and Unlocking
3.1The App has no account system — no registration, no sign-in, and no phone number or email binding.
3.2App-lock credentials (Face ID / pattern / numeric passcode) are stored only in this device's Keychain, and only as SHA-256 digests. The developer cannot, will not, and does not offer any recovery service for them.
3.3The backup passphrase is held solely by you; if you forget it the backup file cannot be recovered, and the developer bears no liability.
3.4Once you uninstall the App or run "Erase all data", all local data and Keychain items are permanently destroyed, and the developer bears no liability.
4.Intellectual Property
4.1All software code, UI design, icons, documentation, and the slogan "No uploads. No account. No tracking." belong to the developer and are protected by law.
4.2Some system icons come from Apple's SF Symbols and are used under Apple's licence terms.
4.3The App claims no ownership of the documents, contracts, or files you enter — ownership and intellectual property in that content remain with you or the lawful rights holder.
5.Third-Party Content
5.1You may import third-party files (PDF, Word, Excel, images) into the App. Ownership and copyright in those files remain with the original rights holder.
5.2Legal disputes arising from the third-party files themselves are to be resolved between you and the original rights holder, and are unrelated to the developer.
6.Changes, Interruption, and Termination
6.1We reserve the right to upgrade, modify, suspend, or terminate all or part of the App's functionality at any time without prior notice.
6.2We are not liable where the App cannot be used normally because of:
your device running an iOS version outside the supported range;
key or data corruption caused by your own reflashing, jailbreaking, or system modification;
data loss due to force majeure (including natural disasters, war, and network outages);
data becoming inaccessible because you forgot your app-lock credential or backup passphrase.
7.Disclaimers
7.1The App is provided on an "AS IS" basis; we do not warrant that it will be absolutely error-free, uninterrupted, or wholly fit for your particular needs.
7.2Because storage is local, we strongly recommend exporting encrypted backups regularly, to avoid irrecoverable loss from a misplaced, damaged device or an accidental action.
7.3The developer is not liable for any indirect, incidental, special, punitive, or consequential damages (including but not limited to data loss, loss of profits, and business interruption) arising from your use of, or relating to, the App.
7.4To the maximum extent permitted by applicable law, the developer's total aggregate liability for the App shall not exceed the amount you actually paid for the App in the preceding 12 months (zero if you use the free version).
8.Changes to This Agreement
8.1We reserve the right to revise this agreement at any time in response to business development and changes in law.
8.2Changes will be announced through in-App notices and the App Store release notes; material changes will require your fresh confirmation.
8.3If you disagree with the revised agreement, stop using the App and uninstall it immediately.
9.Governing Law and Dispute Resolution
9.1The conclusion, performance, interpretation, and dispute resolution of this agreement are governed by the laws of the People's Republic of China.
9.2Disputes arising under this agreement shall first be settled through friendly negotiation; failing that, the matter shall be brought before the competent people's court at the developer's place of business.
10.Severability
If any provision of this agreement is held invalid or unenforceable by a court of competent jurisdiction, the remaining provisions stay in full force, and the invalid or unenforceable provision will be replaced, to the maximum extent permitted by applicable law, by a valid provision closest in meaning to the original.
11.Contact Us
Questions, comments, and complaints about this agreement can be sent to: