1. App use and license
The app helps you edit, calculate, preview, store, and export trade documents. You are responsible for having rights to the images, product details, and customer information you enter, and for checking descriptions, amounts, taxes, bank details, and trade terms before using generated documents. A template is not an approval by customs, a bank, or another authority.
You receive a non-exclusive, non-transferable license to use the app on supported devices. Do not misuse accounts, forge purchases, redistribute the app without authorization, or use it unlawfully. Apps obtained through the Apple App Store use Apple's Standard EULA; this page adds account and membership-service terms.
2. Free features and membership
Local editing and backups are available without a subscription. The free version has the following limits:
Swipe the table left or right to compare all benefits.
| Feature | Free | Annual membership |
|---|---|---|
| Document previews | With a “SAMPLE · 样张” watermark | No watermark |
| Single-document PDF export | 1 watermarked PDF per device per calendar month | Unlimited exports without watermarks |
| Combined PDF and customs data exports | Membership required | Included |
| Product library | Up to 10 products; additions stop at the limit | No plan quantity limit |
| Document history | Latest 10 records shown | All saved records shown |
| Saved company templates | 1 template; an existing template can be replaced | No plan quantity limit |
Annual membership covers five document types, 11 document languages, combined PDF export, and customs data export. Document languages do not automatically translate text you enter. Mobile membership is separate from a desktop license.
The free PDF allowance is recorded on the device by calendar month. Signing out or deleting an account does not reset it. This monthly allowance is separate from a store subscription trial.
Reaching a free limit or returning to the free version does not delete existing records. Older history remains on the device and in full backups and becomes visible with active membership. Existing products and company templates above the free limits remain usable; product additions and new company templates are restricted. Existing products can still be edited, and a company template can be updated under the same name.
The purchase screen and store checkout show the actual benefits, price, currency, billing period, and renewal terms.
3. Billing, renewal, and refunds
The store where you buy a membership handles payment and subscription management. If you choose an auto-renewing subscription, you can cancel it in that store's account settings. Cancellation normally does not end the already paid period. Refunds and revocations follow applicable law and the original store's process; these terms do not remove statutory consumer rights.
Eligible store accounts may be offered a 7-day introductory free trial when that offer is available. Eligibility and duration are determined by the store and shown before confirmation; a trial is not available to every account. Unless cancelled in the original store, the trial converts to an annual paid subscription at the price shown at checkout. For Apple subscriptions, cancel at least 24 hours before the trial ends if you do not want to be charged. Deleting your SunVL account does not cancel a trial or renewal.
Apple customers can read how to cancel a subscription and use Apple's refund request page.
4. Restoring purchases and protecting files
Restore purchases with the original membership account and store account. An old purchase does not automatically transfer to a newly created account after deletion; contact support if you need help. Membership access and local-file migration are separate. Back up your documents regularly.
5. Deleting your account
Start deletion in the app at Membership & Account → Account Security or on the web deletion page. Your account and associated information are handled as described in the Privacy Policy. Local files are not automatically deleted. Account deletion does not cancel an app-store subscription; manage renewal separately.
6. Changes and contact
We work to keep the service available, but device, network, or store outages may affect online membership verification. We will provide any notice required for material changes to the service or these terms. Rights that cannot be excluded by law continue to apply.
Questions? Contact [email protected] or WeChat info2002.