Article 1 (Application)
These Terms apply to all relationships between the user and the Developer regarding the use of the App. The Developer may establish additional rules, notices, or conditions for the App, and such rules shall form part of these Terms.
Article 2 (Description of the App)
The App supports photo-finish style time measurement by using two smartphones placed at the start and finish points, time synchronization, start signals, high-frame-rate video recording, and frame-by-frame result review.
The App is intended as a convenient measurement support tool. It is not certified as official timing equipment for competitions, official records, safety-critical use, legal proof, medical use, or any other purpose that requires guaranteed accuracy.
Article 3 (Measurement Accuracy and User Responsibility)
- The Developer does not guarantee the accuracy, completeness, continuity, or suitability of measurement results.
- Measurement results may be affected by device performance, camera frame rate, recording settings, network condition, time synchronization status, operating system behavior, battery condition, storage capacity, and user operation.
- Users are responsible for checking device placement, camera permissions, storage capacity, synchronization status, start signals, finish-line framing, and final result judgment.
- Users shall use measurement results at their own responsibility and shall not use the App where failure or inaccuracy may cause serious damage.
Article 4 (Data Storage, Data Loss, and Backup)
- The App uses temporary storage, in-memory storage, local device storage, and cloud services depending on the feature.
- Temporary data, cached data, in-memory data, unsaved data, and in-progress measurement data may be deleted or lost when the App is closed, the App process is terminated, the device restarts, the user logs out, the account is deleted, the App is updated or uninstalled, or the operating system cleans up storage.
- Photo-finish videos and related metadata may be stored on the recording device. Such files are not guaranteed to be uploaded to the cloud or backed up, and may be unrecoverable if the device is lost, replaced, reset, damaged, or if the App is deleted.
- Users are responsible for exporting, sharing, or otherwise preserving important results outside the App when needed.
- The Developer shall not be liable for any loss, corruption, deletion, inability to restore, or leakage of data except where required by applicable law.
Article 5 (Accounts and Authentication)
The App may provide anonymous sign-in, Apple sign-in, Google sign-in, or other authentication methods. Users are responsible for managing their accounts and authentication credentials. If an anonymous account is deleted, lost, or not linked to another sign-in provider, related data or purchase-linked benefits may become unavailable.
Article 6 (Paid Features and In-App Purchases)
The App may offer paid features or in-app purchases. Purchases are processed by Apple through the App Store and are also subject to Apple's terms and policies. Unless required by applicable law or Apple's policies, refunds are handled by Apple and not by the Developer.
Article 7 (Prohibited Acts)
Users shall not engage in any of the following acts when using the App:
- Acts that violate laws, regulations, or public order and morals
- Acts that infringe upon the rights, interests, privacy, or reputation of other users, third parties, or the Developer
- Acts of disclosing or sharing personal information, images, videos, or measurement results of others without consent
- Acts of impersonating another person
- Acts that interfere with operation of the App or access systems without authorization
- Acts of reverse engineering, decompiling, modifying, or redistributing the App except where permitted by law
- Acts of using the App for unlawful surveillance, harassment, discrimination, fraud, or other harmful purposes
- Any other acts deemed inappropriate by the Developer
Article 8 (Suspension, Change, or Termination of the App)
The Developer may change, suspend, restrict, or terminate all or part of the App without prior notice due to maintenance, updates, technical issues, operational reasons, legal requirements, or other circumstances. The Developer shall not be liable for damages resulting from such actions except where required by applicable law.
Article 9 (Intellectual Property Rights)
All copyrights, trademarks, and other intellectual property rights related to the App belong to the Developer or other rightful owners. Users retain rights to videos, images, and measurement results they create, but grant the Developer the minimum rights necessary to operate, maintain, improve, and provide the App and related services.
Article 10 (Privacy)
The Developer handles user information in accordance with the Privacy Policy, which is available within the App or on the official website.
Article 11 (Disclaimer)
- The Developer provides the App as is and does not guarantee uninterrupted operation, error-free behavior, compatibility with all devices, or availability of all features.
- The Developer shall not be responsible for disputes or damages arising between users or between a user and a third party.
- The Developer shall not be liable for damages arising from the use or inability to use the App, measurement results, data loss, network failures, device failures, or third-party services except where required by applicable law.
Article 12 (Revisions to These Terms)
The Developer may revise these Terms as necessary. Any revisions shall become effective when posted within the App or on the official website, unless otherwise specified.
Article 13 (Governing Law and Jurisdiction)
These Terms shall be governed by and construed in accordance with the laws of Japan. Any disputes arising from or related to the App shall be subject to the exclusive jurisdiction of the Japanese court with jurisdiction over the Developer's location.
Contact Information
Developer: Koki Osada
Email: math1729abc@gmail.com