Keichapp Lab (hereinafter referred to as “we”) develops and provides the app (hereinafter referred to as “the App”) and the services provided by the App (hereinafter referred to as “the Service”). By downloading or using the App, the user automatically agrees to these Terms of Service (hereinafter referred to as “the Terms”). Therefore, we recommend that the user reads the Terms in full before using the App.
Please note that the original text of these Terms is written in Japanese. If there are differences in meaning or nuance in translations into other languages, the original Japanese text will take precedence.
Free and Premium Plans
Free Plan
This app can be used free of charge, with a limit on usage time per day. Usage time is measured while the App is running in the foreground and resets every day. The maximum usage time and the method of measurement are subject to change at any time for service improvement.
Premium Plan
By purchasing the one-time in-app purchase described below, you can use all features of this application without any usage time limit.
In-App Purchase (One-Time)
The Premium Plan is offered as a one-time in-app purchase. Once purchased, the features of the Premium Plan will continue to be available in association with the Apple account used for the purchase. This plan is not an auto-renewing subscription, and no additional charges will be incurred.
If you need to transfer your purchase information when changing devices, please use the “Restore Purchases” feature within the App.
Fees and Billing
We strive to ensure that the App is as useful and efficient as possible. Therefore, we reserve the right to change the App for any reason and to charge for the Service. If we charge for the App or Service, we will make it clear what the user is paying for.
Information Collection and Use
The App stores and processes personal data the user provides to deliver the Service. It is the user’s responsibility to keep their PC or other device and access to the App secure. We do not recommend the process of removing software restrictions imposed by the official operating system (so-called jailbreaking or rooting), as this can make the PC or other device vulnerable to malware, viruses, and malicious programs, and may compromise the security features of the device. As a result, the App may not function correctly or at all.
The App uses third-party services that declare their terms of service.
Links to the terms of service of third-party service providers used by the App:
Prohibited Activities
You are not permitted to reproduce or modify the App, any part of the App, or our trademarks in any way. You must not attempt to extract the source code of the App, translate it into other languages, or create derivative versions. The App itself, along with all trademarks, copyrights, database rights, and other intellectual property rights related to it, belong to us.
Disclaimer
Some features of the App require an internet connection, which may be Wi-Fi or mobile data. If the user cannot access Wi-Fi or exceeds their mobile data limit, the App may not work correctly, and we are not responsible for this. When using the App outside Wi-Fi areas, mobile data terms apply, and the user may incur data charges. Using data roaming abroad may result in additional roaming charges. The user is responsible for any charges incurred by using the App. If someone else pays for the device the user is using the App on, the user is assumed to have their permission to use the App.
We are also not responsible if the user cannot use the Service due to a dead battery on their device. The user must manage their device’s battery responsibly.
We rely on information provided by third parties and are not responsible for the completeness or accuracy of the information provided through the App, even if direct or indirect losses occur.
Usage Restrictions
To ensure the stable operation of the Service, we set a limit on the usage time of the App in the Free Plan. Usage time is managed within the user’s device and resets every day. The maximum usage time is subject to change without notice depending on the service’s operating conditions.
Changes to the App and Termination
We may update the App’s content and functions. The App is currently available on macOS devices, but we may expand support to other systems or change system requirements in the future. To keep the App running smoothly, regular updates may be necessary. However, we do not guarantee the App will always support the user’s macOS device version or stay up-to-date. We recommend accepting updates when available.
We reserve the right to stop providing the App or terminate its use at any time without notice. When the App is terminated, any rights or licenses granted to the user will also end, and the user must stop using the App and delete it from their device if necessary.
Changes to the Terms
These Terms may be updated periodically. Therefore, we recommend that users regularly check this page for changes. We will notify users of any changes by posting the new Terms on this page.
Contact Us
If users have any questions or suggestions about these Terms, please contact us via contact form .
Last updated: May 26, 2026