Terms of Use
Last updated: September 22, 2026
These Terms of Use ("Terms") apply to the Learn Japanese Fast - koto app for mobile devices and any related services (collectively, the "Application"), operated by Mohit Pachisia (the "Service Provider", "we", "us", or "our").
1. Acceptance of Terms
By downloading, accessing, or using the Application, you agree to these Terms and to our Privacy Policy. If you do not agree, please do not use the Application.
2. About the Application
Koto helps you learn Japanese through short video clips, translations, and learning tools. Access to the Application's learning features requires an active paid subscription ("Premium"). We may add, change, or remove features at any time as we improve the Application.
3. Eligibility
You must be at least 16 years old, or the minimum age required in your country, to use the Application. If you are under 18, you confirm that your parent or guardian has reviewed and agreed to these Terms on your behalf.
4. Your Account
If you create an account, you agree to give accurate information and to keep your login details secure. You are responsible for all activity that happens under your account. Please contact us immediately if you believe your account has been used without your permission.
5. YouTube Content
The Application shows clips from YouTube videos to support your learning. Please note:
- By using the video features of the Application, you agree to be bound by the YouTube Terms of Service: https://www.youtube.com/t/terms
- Google's Privacy Policy applies to YouTube's handling of your data: https://policies.google.com/privacy
- All videos are hosted by YouTube and belong to their respective creators. We do not own any YouTube videos.
- Koto stores only the YouTube video ID and the start and end times of each clip. The video itself is always streamed directly from YouTube through its official embedded player. We never download, cut, or re-host any video.
- Videos are played only through YouTube's official embedded player, with YouTube's standard controls and branding.
- We do not sell or charge for YouTube videos. These videos remain freely available to everyone on YouTube.
- If you are a creator and have concerns about how your video appears in the Application, contact us at mohitpachisia1@gmail.com and we will review it promptly.
6. Subscriptions and Payments
Access to the Application's learning features requires an active Premium subscription. Your subscription pays for Koto's own learning tools and services, which include:
- Koto's clip library: short learning clips hand-selected and timed by us from publicly available YouTube videos, organized by level and topic
- Tap-to-translate words and meanings
- Flashcards and vocabulary review
- Lessons and practice activities
- Saved words and personal word lists
- Learning progress and study statistics
Your subscription does not pay for YouTube videos. YouTube videos remain freely available to everyone on YouTube, and we receive no payment for them.
Billing: Payments are processed by the Apple App Store or Google Play Store, and are charged to your App Store or Google Play account.
Auto-renewal: Subscriptions renew automatically at the end of each billing period unless you cancel at least 24 hours before the current period ends. Your account will be charged for renewal within 24 hours before the current period ends.
Cancellation: You can manage or cancel your subscription at any time in your App Store or Google Play account settings. Deleting the Application does not cancel your subscription. After cancellation, you keep access until the end of your current billing period.
Free trials: If a free trial is offered, you will be charged automatically when the trial ends unless you cancel at least 24 hours before it ends.
Refunds: Refunds are handled by Apple or Google according to their refund policies. We cannot issue refunds directly for purchases made through their stores.
Price changes: We may change subscription prices. Any change will be communicated in advance as required by the App Store, Google Play, and applicable law.
7. Acceptable Use
You agree not to:
- Use the Application for anything illegal or in violation of these Terms
- Try to access parts of the Application, our systems, or other users' accounts without permission
- Interfere with, disrupt, or overload the Application or its servers
- Copy, download, record, or redistribute videos or other content shown in the Application
- Copy, modify, sell, or create derivative works from the Application or our content without our written permission
- Reverse engineer or attempt to extract the source code of the Application, except where the law allows it
- Use bots, scrapers, or other automated tools to access the Application
8. AI Features
The Application may use Artificial Intelligence to provide features such as translations, explanations, and recommendations. AI output can sometimes be inaccurate or incomplete. Please use it as a learning aid, not as a guaranteed source of correct translations.
9. Intellectual Property
The Application and its original content, design, features, logos, software, and clip selections belong to the Service Provider and are protected by intellectual property laws. YouTube videos and other third-party content belong to their respective owners. You may not use our name, logo, or content without our prior written permission.
10. Third-Party Services
The Application relies on third-party services such as YouTube, Apple, Google, Expo, and RevenueCat. We are not responsible for the content, availability, or practices of these services, and your use of them is subject to their own terms and policies.
11. Termination
We may suspend or end your access to the Application if you break these Terms or misuse the Application. You may stop using the Application at any time. If you want your account and data deleted, contact us at mohitpachisia1@gmail.com.
12. Disclaimers
The Application is provided "as is" and "as available", without warranties of any kind. We do not guarantee that the Application will always be available, error-free, or secure, or that any particular video or clip will remain available, since videos may be removed or restricted by YouTube or their creators. Learning results depend on each person and are not guaranteed.
13. Limitation of Liability
To the fullest extent allowed by law, the Service Provider will not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the Application. Our total liability for any claim will not exceed the amount you paid us for the Application in the 12 months before the claim.
14. Apple App Store Terms
If you downloaded the Application from the Apple App Store:
- These Terms are between you and the Service Provider only, not Apple. Apple is not responsible for the Application or its content.
- Apple has no obligation to provide maintenance or support for the Application.
- If the Application fails to meet any applicable warranty, you may notify Apple, and Apple may refund the purchase price (if any). Apple has no other warranty obligation regarding the Application.
- Apple is not responsible for any claims relating to the Application, including product liability claims, legal or regulatory compliance claims, or consumer protection claims.
- Apple is not responsible for investigating or handling any claim that the Application infringes someone's intellectual property.
- You confirm that you are not located in a country subject to a U.S. Government embargo, and that you are not on any U.S. Government list of prohibited or restricted parties.
- Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
15. Changes to These Terms
We may update these Terms from time to time. When we make important changes, we will update the "Last updated" date and, where appropriate, notify you in the Application. Continuing to use the Application after changes take effect means you accept the updated Terms.
16. Governing Law
These Terms are governed by the laws of India. Any disputes will be handled by the courts of competent jurisdiction in India, without affecting any rights you have under the consumer protection laws of your country of residence.
17. Contact Us
If you have any questions about these Terms, please contact us at mohitpachisia1@gmail.com.