Terms of Service

Last updated: 2026-09-12. thegeul — the geul (long-form writing) and haru (diary) writing rooms — is operated by 오브 주식회사 (Obv Inc.), a company registered in the Republic of Korea (business registration number 186-87-03791), at 경기도 양평군 지평면 지평시장2길 8, 1층 에이19호. These Terms govern your use of the service. By creating an account or using the service, you agree to these Terms.

1. The service

thegeul provides two writing tools under one account: geul, a long-form writing studio with an AI companion (Munu), and haru, an AI-assisted diary (with Siwoo). Features include editing, plot boards, mood analysis, export to PDF/EPUB, and automatic cloud sync after sign-in.

2. Accounts

Accounts are authenticated through Supabase — email/password or social sign-in (Google, Apple, Kakao, or X; availability may vary by region). You are responsible for keeping your credentials secure. You must provide accurate information and may not share an account in ways that circumvent plan limits.

3. Local-first storage

Your writing is stored on your device first (in your browser's local database). Signing in starts automatic cloud synchronization, which uploads your content to our servers. If you clear your browser storage without syncing or exporting, locally stored content may be lost — we cannot recover it.

4. AI features and API keys

AI features send the content you choose to process (e.g., a chapter, a diary entry, a selection) to the AI provider you select (such as Anthropic, OpenAI, or Google). Their terms and privacy policies apply to that processing. thegeul does not use your writing to train AI models.

Bring-your-own-key (BYOK): API keys you enter are stored locally on your device and sent through our server to your selected AI provider when you use AI. We do not save the key to our database. Calls made with your key are billed by the provider under your own agreement with them. AI credits: paid plans may include AI credits; usage is metered and deducted from your credit balance.

5. Payments — web and app stores

Web purchases are processed by Paddle.com, our merchant of record. Purchases offered in the Android app use Google Play Billing; store purchases and refunds follow the terms of the store shown on your receipt. Paddle handles checkout, billing, taxes (VAT/GST), invoices, and refunds under Paddle's terms and our Refund Policy (see /refunds). Prices shown may vary by country due to taxes and currency.

6. Your content, your ownership

You own 100% of what you write. thegeul claims no rights over your manuscripts, diaries, or notes. We only process your content as needed to operate the service (storage, sync, export, and AI features you invoke).

7. Acceptable use

Do not use the service to violate the law, infringe others' rights, attempt to breach security, or abuse AI features (e.g., resale of credits, automated scraping). We may suspend accounts that violate these rules.

8. Data deletion and export

You can export your content at any time (Markdown ZIP, PDF, EPUB). You can delete synced data or request account deletion, which removes your synced content from our servers. Local copies on your devices remain under your control.

9. Disclaimers and liability

The service is provided "as is". To the extent permitted by law, we disclaim implied warranties and are not liable for indirect damages or content loss caused by factors outside our reasonable control (including unsynced local data loss). Nothing here limits liability that cannot be limited by law.

10. Governing law · changes · contact

Governing law and jurisdiction: these Terms are governed by the laws of the Republic of Korea, with the court having jurisdiction over the location of Obv Inc.'s head office as the court of first instance. We may update these Terms; material changes will be announced in the service. Questions: contact us at support@thegeul.com.

Drafted in-house and pending review by counsel. Governing law is set; the substance may be refined.