Privacy Policy
Effective September 13, 2026
This policy explains what Paylune collects, why, who helps us process it, and the choices you have. Paylune is operated by Invexsoft (인벡스소프트), which is responsible for your personal information.
1. What we collect
When you use Paylune without an account (/try)
- Your draft invoice is saved only in your browser’s local storage. It is not sent to us while you edit.
- When you download a PDF, the draft is sent to our server to create the file and is not stored.
When you have an account
- Account: your sign-in email address.
- Your details: the business name, email, and address you enter, and your invoice defaults (currency, tax label, tax rate).
- Invoices: invoice numbers, dates, line items, amounts, currency, tax, notes, payment links you add, status, and the private link token.
- Your clients: the names and addresses you put on invoices, and a client’s email address if you email them an invoice.
- Usage: how many invoices you created each month, to apply the Free plan limit.
- Billing: your plan and Polar customer ID. Card and payment details go to Polar and its payment processor. They never reach us.
When anyone visits the site
- Analytics: Vercel Web Analytics counts page views and PDF downloads without cookies. Private invoice link tokens are removed from the addresses it records.
- Logs: our hosting providers keep technical request logs, such as IP address and browser type, to run and secure the service.
- Support: emails you send to support@paylune.app.
2. Why we use it
- To provide Paylune: sign you in, save and show your invoices, create PDFs, share links, and send the emails you ask us to send.
- To run your subscription and apply plan limits.
- To keep the service secure and prevent abuse.
- To answer support requests.
- To understand, in aggregate, which pages are used so we can improve them.
We don’t sell your information, show ads, or use your invoices to train AI models. We use it only to provide the service you signed up for and to meet legal obligations.
3. Your clients’ information
When you put a client’s details on an invoice, you decide what to enter and why. We store and process that information on your behalf to create, share, and send your invoices. If a client asks us about their data, we will point them to you and help you respond.
4. Who processes it for us
These companies process personal information for us, and only to provide their service. Because they are located outside Korea, using Paylune involves transferring your information to them over the network when it is needed.
| Company | Location | Purpose | Data |
|---|---|---|---|
| Supabase Inc. | USA (data stored in Seoul, South Korea) | Database and sign-in | All account, profile, client, and invoice data |
| Vercel Inc. | USA (global network) | Hosting, PDF rendering, cookie-free page analytics | Requests to the site, invoice content while it is rendered |
| Resend, Inc. | USA (sent from Tokyo, Japan) | Sign-in emails and, on Pro, invoice emails to your clients | Your email; your client’s email, the invoice and its PDF |
| Polar Software Inc. | USA | Merchant of record for Pro subscriptions | Your email and account ID; Polar collects payment details directly |
| Cloudflare, Inc. | USA | Domain name service and routing of support email | Emails you send to support |
| Google LLC | USA | Support mailbox | Emails you send to support |
| GitHub, Inc. | USA | Weekly database backups, kept for 90 days | A copy of the database, including account data |
Polar is the seller of Pro subscriptions and is also responsible for the billing data it collects. Its own privacy policy applies. We may also disclose information when the law requires it.
Transfers happen for as long as you use Paylune, for the purposes above. If you don’t want your information transferred, you can choose not to create an account, but we can’t provide the service without these providers.
5. How long we keep it
- Account, profile, client, and invoice data: until you delete your account.
- After you delete your account, it is removed from our live database right away. Copies in backups are deleted within 90 days.
- Billing records held by Polar: as required by the tax and commerce laws that apply to Polar.
- Support emails: until your request is resolved, and no longer than one year after that.
- Your browser’s /try draft: until you clear it, or until you sign in and it is imported into your account.
6. Your choices and rights
- See and correct: your details and invoice defaults are in Settings, and your invoices are in your dashboard.
- Download: download any invoice as a PDF. For a copy of all your data, email us.
- Delete: delete your account from Settings. This also cancels any Pro subscription immediately.
- Other requests: to access, correct, stop processing, or object, email support@paylune.app. We reply within 10 days.
If you think we’ve mishandled your information, contact us first. You can also complain to the data protection authority where you live. In Korea, that is the Personal Information Infringement Report Center (privacy.kisa.or.kr, phone 118).
7. Cookies and local storage
- Sign-in cookies (names starting with
sb-): keep you signed in. They are needed for the service to work. - Local storage (
paylune:try-draft:v1): holds your /try draft on your device.
We don’t use advertising or cross-site tracking cookies.
8. Security
Connections are encrypted with HTTPS. Database access is restricted so each account can read only its own rows. Private invoice links use long random tokens. No system is perfectly secure, so we will tell you promptly if a breach affects your information.
9. Children
Paylune is a business tool and isn’t meant for anyone under 16. We don’t knowingly collect information from children.
10. Changes to this policy
We will post any update here with a new effective date. If a change affects how your information is used, we will email you before it takes effect. The Terms of Service explain how updates work.
11. Contact
Privacy officer: Sangyoung Lee (이상용), support@paylune.app
- Operator
- Invexsoft (인벡스소프트)
- Representative
- Sangyoung Lee (이상용)
- Business registration no.
- 271-09-03499
- Mail-order sales registration
- Registration in progress
- Address
- 1002-355, 26 Byeollaejungang-ro, Namyangju-si, Gyeonggi-do, Republic of Korea (경기도 남양주시 별내중앙로 26, 1002-355호(별내동, 진영엔타워))
- support@paylune.app