WriteLang / 쓰면영어 End User License Agreement
Updated: 2026-10-28 · Effective date: (publication date) · Previous version: 2026-09-08 · 한국어
1. Parties and scope
This agreement covers the desktop (Windows, macOS) and mobile (iOS, Android) apps of WriteLang, known in Korea as 쓰면영어, provided by an individual developer without a registered business (the “Developer”), through official stores or an official zip distribution. Using the app requires signing in with a Google or Apple account. A free account has a small correction allowance that refills every week; the paid subscription (Pro) adds a larger allowance, learning material and sync across devices. Payment, renewal, cancellation and refunds of subscriptions follow the terms of the store you bought from (App Store, Google Play and the like). Contact: [email protected].
These terms must be available before installation or use. Installing or using the app after reviewing these terms accepts these conditions of use. If you do not accept them, stop installation/use and remove the app. This is not consent to personal-data collection or to sending text externally (the app asks for that consent separately). The app is for people aged 14 and older. Minors must obtain any parent/legal-guardian consent required by applicable law.
2. License and rights
The Developer grants you a free, non-exclusive license to install the app on supported devices you own or lawfully control and use it for personal or work purposes. The app is licensed, not sold. Rights in the Developer's code, branding and other materials remain with their owners. Without separate permission or legal authority, you may not sell or sublicense the Developer's app or misrepresent it as your official product.
All rights not expressly granted are reserved. Without separate written permission, you may not modify, copy or distribute (including free redistribution), sell, rent or sublicense the Developer’s app or proprietary code, or use the Developer’s trademarks. This does not prohibit copying necessary for permitted installation, operation and backup, acts protected by applicable law, or rights under the third-party licenses below.
Each third-party open-source component is governed by its own license, which takes priority for that component. This agreement does not restrict use, copying, modification or redistribution permitted by those licenses, or rights such as reverse engineering allowed by law. The Developer claims no ownership of your input or output, but does not guarantee that output is copyrightable, exclusive, or free of third-party rights. You must have authority to process your input and verify that your use of output is lawful.
3. AI processing and allowances
When you run translation or correction, your text is sent through the Developer's relay server to an OpenAI language model. Pro learning material is made with OpenAI and Google models. Recipients, retention and consent are described in the Privacy Policy. Without an internet connection, or while an external service is down, translation and correction are unavailable.
You must not use the app for unlawful purposes or to create content that infringes others' rights or harms or deceives others. If you do, or use automated means to get around the allowance, the Developer may restrict that account's use, explaining the reason first where practicable.
The free allowance is set to match operating cost; once it is used up, correction is unavailable until it refills. Reductions to the allowance are announced in advance. For third-party software notices, see Third-Party Notices.
4. Checking results and service changes
The app's results may mistranslate, omit or add meaning, replace text incorrectly, stop working, lose files, or have device compatibility problems. Check results before replacing or sending text in another app and back up important materials. AI output does not replace professional legal, medical or financial judgment. We do not promise a particular quality, speed, supported device or ongoing free updates. The Developer may change or discontinue features, with advance notice where practicable. Changes and refunds during a paid subscription follow mandatory law and the terms of the store you bought from.
5. No warranty
To the extent permitted by applicable law, the app and output are provided “as is” and “as available.” The Developer disclaims express or implied warranties of accuracy, merchantability, fitness for a particular purpose, non-infringement, uninterrupted operation or freedom from errors. Warranties and user rights that cannot legally be excluded remain intact.
6. Limitation of liability
To the extent permitted by applicable law, the Developer limits liability for indirect, special or consequential loss or lost profits related to use of the app. Neither this limitation nor the warranty disclaimer applies to liability that cannot lawfully be excluded or limited, including intentional misconduct or gross negligence by the Developer, death or personal injury, and violations of data-protection duties where non-excludable. Liability is not capped at zero merely because the app is free. Mandatory consumer rights and remedies remain intact.
7. Privacy and optional feedback
Processing is described in the Privacy Policy. Accepting this agreement does not authorize optional feedback transmission. Feedback is submitted only when you write it and press Send. Not submitting or requesting lawful suspension/deletion does not reduce translation or correction functionality. Translation input/results are not collected for quality improvement. User-selected final text-free ratings are transmitted separately; their fields, grounds and choices are described in the Privacy Policy. Publishing the privacy policy does not constitute consent.
8. Termination, changes and disputes
You may stop use and remove the app at any time. For a material breach, the Developer may terminate your license to the Developer's app after explaining the reason and providing a reasonable opportunity to remedy it. Third-party licenses govern their own survival and termination. Changes to these terms will be announced with their effective date and will not retroactively remove accrued rights. Material changes requiring separate consent will follow a lawful acceptance procedure.
Applicable terms of Microsoft Store, the App Store or Google Play also govern acquisition through that store. This agreement governs app use between you and the Developer and is interpreted consistently with mandatory law and applicable Store terms. Governing law and jurisdiction follow applicable law without excluding mandatory protections or statutory jurisdiction in your place of residence. No mandatory arbitration, class-action waiver or exclusive foreign court is required. If a term is invalid, the remainder continues to the extent allowed by law. Differences between the Korean and English texts are interpreted consistently with mandatory law and user protection.