shoWork — Terms of Use

Effective date: 2026-11-03
Publisher: YS Labs, Yongin-si, Gyeonggi-do, South Korea · contact@yslabs.dev

These Terms of Use ("Terms") govern your use of the shoWork app for iPad (the "App"), published by YS Labs ("we", "us"). These Terms are an agreement between you and YS Labs, not Apple. By downloading or using the App, you agree to these Terms. If you do not agree, do not use the App.

1. What the App is

• An iPad app that reads math you write by hand, one line at a time, and checks each line against the lines before it.
• It marks a correct step ✓, the first wrong line ✗ with a short reason, and a step it could not confirm "?".
• On a wrong line it can give up to two hints. It does not give answers or full solutions.
• It covers math calculation problems through the end of high school and calculation problems in physics and chemistry.

2. Students, parents and guardians

• The App is made for students. If you are under the age of majority where you live, a parent or guardian must accept these Terms for you and is responsible for purchases.
• Purchases go through Apple, where parents can require approval (Ask to Buy).

3. Plans and problem packs

• Subscriptions. Basic, Premium and Family are auto-renewing subscriptions, monthly or yearly.
• Each includes a number of problems a month: Basic 100, Premium 150, Family 400.
• The allowance resets every month on both monthly and yearly plans. Unused problems do not carry over.
• A subscription renews automatically unless you cancel at least 24 hours before the end of the current period.
• Manage or cancel it in your Apple account settings.
• What a problem is. One problem counts once, however many lines it has. A new problem starts when you tap Next problem or confirm that a line starts a new problem.
• When problems run out. Checking pauses until the allowance resets. Subscribers can buy 30 extra problems.
• Problem packs. 5 Problems, 30 Problems and 30 Extra Problems (subscribers only) are consumable one-time purchases.
• A pack is kept for the iPad it was bought on.
• Packs have no cash value and cannot be transferred.
• Family plan. It shares 400 problems a month across up to 3 iPads joined with a family code. The iPad that bought the plan can make a new code, which disconnects the other iPads. Apple Family Sharing is not used.
• Free weekly problem. Every iPad gets 1 free problem every 7 days, counted from when its last free problem started. A free problem that is not used does not carry over. It is a feature of the App, not a free trial of a subscription. On a busy day free problems may pause until the next day.
• Prices are shown by the App Store before you buy and may vary by country.

4. Payments and refunds

• Payments are processed by Apple. We do not receive your payment details.
• Refunds are handled by Apple under its policies at reportaproblem.apple.com.

5. License and App Store terms

We grant you a personal, non-exclusive, non-transferable license to use the App on iPads you own or control, under these Terms and the App Store's rules.

Your use is also subject to Apple's Licensed Application End User License Agreement (the "Standard EULA"). If these Terms and the Standard EULA conflict, the Standard EULA applies to the extent required.

6. AI feedback

• Lines are read and checked by a third-party AI service (Anthropic's Claude) through our server. What is sent and where is described in the Privacy Policy.
• AI feedback can be wrong. A ✓ does not guarantee a step is correct, and a ✗ may occasionally mark a correct step. A "?" means the App could not confirm the step.
• The App is a study aid. It is not a grading service and does not replace a teacher.
• We may change the AI models or the way lines are checked.

7. Your content

• What you write is yours.
• You give us and our providers only the rights needed to read and check the lines you choose to check, and to return the result to you.
• Do not write names, contact details or other personal information about yourself or others on the page.

8. Acceptable use

Do not: - try to get around the problem count, request limits or the App's security - send automated requests - use the App to process content that is unlawful or that infringes someone else's rights

We may limit requests from a device that misuses the service.

9. Availability

• Checking needs an internet connection and our providers. It may be slow, limited or unavailable at times.
• A check can take about a minute. If no result arrives in time, the line shows "?" and can be checked again.
• If we decide to end the checking service, we will tell you in the App at least 30 days in advance. For a subscription or unused packs, we will help you request a refund from Apple. Where the law gives you a right to a refund, we will honor it.

10. Disclaimers and limitation of liability

• The App is provided "as is" and "as available". To the maximum extent permitted by law, we make no warranties and are not liable for indirect, incidental or consequential damages.
• Nothing here limits rights you have under applicable consumer protection laws (including in the EU, the UK and South Korea).
• Nothing in these Terms excludes or limits liability for intent or gross negligence, for death or personal injury caused by negligence, or any other liability that cannot be excluded or limited by law.
• Our total liability for any claim relating to the App is limited to the greater of the amount you paid for the App's plans and packs in the 12 months before the claim or USD 50.

11. Changes

We may update these Terms. We will post the new version here with a new effective date. For changes that materially affect you, we will tell you in the App at least 30 days before they apply. If you do not agree, you can stop using the App and cancel your subscription.

12. Ending use and governing law

• You can stop using the App at any time by cancelling your subscription and deleting the App.
• We may limit or stop requests from a device that breaks these Terms.
• These Terms are governed by the laws of the Republic of Korea, without regard to conflict-of-law rules. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live, and you may bring claims in the courts there.

13. App Store additional terms

If you obtained the App from the Apple App Store: - Parties. These Terms are between you and YS Labs only, not Apple. YS Labs, not Apple, is solely responsible for the App and its content. - Maintenance and support. YS Labs is solely responsible for maintenance and support. Apple has no obligation to provide any maintenance or support for the App. - Warranty. If the App fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any). To the maximum extent permitted by law, Apple has no other warranty obligation for the App. - Product claims. YS Labs, not Apple, is responsible for addressing any claims relating to the App, including product liability, failure to meet legal or regulatory requirements, and consumer protection or privacy claims. - Intellectual property. YS Labs, not Apple, is responsible for any third-party claim that the App infringes intellectual property rights. - Legal compliance. You represent that you are not located in a country subject to a U.S. government embargo or designated as a "terrorist supporting" country, and that you are not on any U.S. government list of prohibited or restricted parties. - Third-party beneficiary. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

14. Contact

YS Labs · contact@yslabs.dev

한국어 요약 (이용약관)

• 서비스: 손으로 쓴 수학 풀이를 한 줄씩 읽어 앞줄과 비교해 확인하는 iPad 앱입니다. 정답·전체 풀이는 보여 주지 않습니다.
• 요금제: Basic·Premium·Family는 월·연 자동 갱신 구독입니다.
• 포함 문제 수는 월 100·150·400이며, 연 구독도 매월 초기화되고 이월되지 않습니다.
• 갱신 24시간 전까지 해지해야 다음 결제가 되지 않습니다.
• 주간 무료 문제: iPad마다 마지막 무료 문제를 시작한 때부터 7일마다 1문제를 무료로 확인할 수 있습니다. 쓰지 않은 무료 문제는 이월되지 않으며, 구독의 무료 체험이 아닙니다. 이용이 많은 날에는 다음 날까지 멈출 수 있습니다.
• 문제 팩: 5문제·30문제·구독자용 추가 30문제는 소모성 1회 구매입니다. 구매한 iPad에만 적용되며 현금 가치·양도가 없습니다.
• Family: 가족 코드로 최대 3대의 iPad가 월 400문제를 함께 씁니다. Apple 가족 공유는 쓰지 않습니다.
• 결제·환불: Apple이 처리합니다(reportaproblem.apple.com).
• AI 피드백: 틀릴 수 있습니다. 학습 보조 도구이며 채점·교사를 대신하지 않습니다.
• 이용 제한: 문제 수·요청 제한·보안 우회와 자동화된 요청을 금지합니다.
• 서비스 종료: 확인 서비스를 끝낼 때는 30일 전에 앱에서 알리고, 환불 요청을 돕습니다.
• 준거법: 대한민국 법. 소비자는 거주국 강행법의 보호를 유지합니다.
• 문의: contact@yslabs.dev