Terms of service

Article 1 (Purpose)

The purpose of these terms is to set out the rights, obligations, and responsibilities of the Service and its users in connection with the use of the golf driver swing analysis and shaft recommendation service provided by OhMyShaft (the "Service").

Article 2 (Definitions)

• Service — every function provided at ohmyshaft.com and its subpages
• User — a person who uses the Service under these terms
• Member — a user who registers a mobile number and PIN in order to save analysis history
• Results — the analysis and recommendations the Service produces from the data a user enters

Article 3 (Effect and amendment of these terms)

• These terms take effect when they are posted on a Service screen.
• The Service may amend these terms where necessary, within the limits of the applicable law.
• Amended terms are announced from 7 days before they take effect; a change unfavorable to users is announced 30 days in advance.
• If you keep using the Service after the announcement, you are treated as having agreed to the amended terms. If you don't agree, you can stop using the Service and close your account.

Article 4 (What the Service provides)

The Service provides the following functions free of charge.

• Analysis results for the swing data a user enters
• Shaft recommendations based on published product specs
• Storage and lookup of a member's analysis history
• A downloadable text report of the results

The Service may add, change, or discontinue functions, and announces important changes in advance.

Article 5 (The nature and limits of the results)

• Results are statistical estimates based on the data a user enters and on published product specs, and they do not replace a professional fitting.
• What the ball actually does depends on factors the Service cannot know: how repeatable the swing is, the head-and-shaft combination, the grip, course conditions, the type of ball, and so on.
• If the data entered is inaccurate, or a different measuring device is used, the results change too.
• Before a decision that costs money, such as buying a shaft, please test it and confirm with a professional fitter.
• The Service has no partnership or sponsorship relationship with the shaft and club brands it mentions, and brand names are used for information only.

Article 6 (Sign-up and age of use)

• The analysis works without signing up. Signing up is needed only if you want to save your analysis history.
• Sign-up is available from age 14.
• Anyone under 14 may use the Service through a guardian's account, under that guardian's supervision.
• A member must enter their own mobile number and PIN accurately, and must not misappropriate anyone else's information.

Article 7 (Account management and user obligations)

• Responsibility for the PIN rests with the user. Please don't tell anyone else your PIN.
• If you suspect your PIN has been exposed, please tell us at once at help@ohmyshaft.com.
• Users must not do any of the following.
  • Sign up with someone else's mobile number, or attempt to view someone else's history
  • Put excessive load on the Service by automated means
  • Interfere with the normal operation of the Service
  • Copy or distribute the Service's content without permission for commercial gain

Article 8 (Suspension of the Service)

The Service may be suspended temporarily for maintenance, equipment failure, an outage at an external service, and so on. Scheduled maintenance is announced in advance, and an unexpected outage is explained after recovery. No separate compensation is given for the suspension of a service provided free of charge.

Article 9 (Closing an account and restriction of use)

• A member may ask to close their account at any time; on closure, sign-up information and analysis history are deleted.
• Closure requests are received at help@ohmyshaft.com.
• Use may be restricted, after prior notice, for a user who commits a prohibited act under Article 7. In an urgent case, however, the restriction may come first and the notice after.

Article 10 (Advertising)

The Service may display advertising on screen to cover its running costs. Ads are marked so that they can be recognized as ads, and advertising has no influence on results or on the ranking of shaft recommendations. The Service is not responsible for transactions made on an external site reached through an ad.

Article 11 (Intellectual property)

• The rights to the screen design, analysis logic, and wording created by the Service belong to the Service.
• The data a user enters and the results produced from it belong to that user, who may use and download them freely.
• Brand and product names mentioned are trademarks of their respective owners and are used for information only.

Article 12 (Limitation of liability)

• The Service is provided free of charge and does not warrant the accuracy of its results or their fitness for any particular purpose.
• The Service is not responsible for purchase or fitting decisions a user makes on the basis of the results, or for how those turn out.
• Liability is excluded for damage arising from causes the Service cannot control, such as natural disasters or outages at external services.
• Where damage is caused to a user by the Service's intent or gross negligence, however, the Service bears responsibility under the applicable law.

Article 13 (Dispute resolution)

If a dispute arises in connection with the use of the Service, the Service and the user will consult in good faith to resolve it. A dispute not resolved by consultation is governed by the law of the Republic of Korea, and is brought before the court with jurisdiction under the Civil Procedure Act.

Addendum

These terms take effect on September 17, 2026.