Terms of Service

Effective date: YYYY-MM-DD

Operator: OhayoStudio (Sadou Jérôme / サドゥジェローム), 個人事業 registered in Japan

Contact: jerome@ohayostudio.com

App: Uchi Energy (the “App”)

These Terms of Service (“Terms”) govern your use of the App. By downloading, installing, or using the App, you agree to these Terms. If you do not agree, do not use the App.

The App is designed for use in Japan and works with Japanese household electricity data. These Terms are governed by Japanese law.

1. The service

The App is a personal tool that shows your region’s electricity price and carbon-intensity signal, and — when you import your own usage or connect your smart meter — estimates your bill, compares tariff plans, and suggests times to shift usage. Your personal data is stored on your device; the App fetches only public, per-region grid data from OhayoStudio’s server. The App is provided by OhayoStudio.

2. Purchases and payment

The App offers a free tier and paid features. Paid features may be offered as a one-time unlock and/or a subscription with a free trial, through Apple’s App Store or Google Play.

Pricing. Current pricing is displayed in the App and on the store listing. Prices include consumption tax and follow the App Store / Google Play display. Prices may be revised; we will provide reasonable prior notice of any change, and continued use after a change takes effect constitutes acceptance.

Billing. All payments are processed by Apple (App Store) or Google (Google Play) according to their respective terms. OhayoStudio does not handle payment information.

Free trial (subscriptions). Where a free trial is offered, if you do not cancel before it ends you will be charged for the chosen period. The trial may not be available to users who have previously subscribed or trialed the App.

Auto-renewal (subscriptions). Subscriptions automatically renew unless cancelled at least 24 hours before the end of the period. You may cancel at any time through your Apple or Google account settings.

One-time unlock. A one-time unlock is a non-recurring purchase that enables the relevant features on your store account, subject to Apple’s and Google’s terms. It is not a subscription and does not auto-renew.

Refunds. Refund requests are handled by Apple or Google according to their policies; OhayoStudio cannot process refunds directly.

• Apple: https://support.apple.com/HT204084
• Google: https://support.google.com/googleplay/answer/2479637

If you request a refund, RevenueCat (the purchase provider) may share purchase-related data with Apple or Google to help them evaluate the request and prevent abuse. See the Privacy Policy for details.

3. Your data

Your consumption, tariff, and smart-meter data remain on your device. The App does not transmit them to OhayoStudio or any third party (the App sends only your region code to fetch public grid data; see the Privacy Policy). You are responsible for backing up your data. OhayoStudio is not responsible for data loss caused by device failure, OS reinstallation, uninstallation, or any other cause.

4. License

OhayoStudio grants you a personal, non-exclusive, non-transferable license to use the App on devices you own or control, subject to these Terms and the rules of the Apple App Store or Google Play. You may not copy, modify, reverse-engineer, or create derivative works of the App except where permitted by law; redistribute, sell, rent, or sublicense it; use it unlawfully; or attempt to circumvent payment or the trial period.

5. Acceptable use

You agree to use the App only for its intended purpose. You will not use it to import or store data you do not have the legal right to use, to commit or facilitate any illegal activity, or to harass, harm, or violate the rights of others. You will not access utility, retailer, or smart-meter systems in violation of those systems’ own terms of service.

6. Intellectual property

The App, including its code, design, illustrations, copywriting, carbon-intensity methodology, and curated tariff and grid data, is owned by OhayoStudio and protected by Japanese and international copyright law.

Public source data (e.g. JEPX, the transmission/distribution operators’ published data, e-Stat statistics) belongs to its respective publishers and is used under their terms; attribution is carried where required. Product names and trademarks (e.g. Nature Remo, retailer and utility names) belong to their respective owners. OhayoStudio is an independent developer and is not affiliated with, endorsed by, or sponsored by any electric utility, retailer, transmission operator, or device manufacturer.

7. Disclaimers

The App is provided “as is.” OhayoStudio makes no warranties, express or implied, regarding the App’s accuracy, reliability, fitness for a particular purpose, or non-infringement.

Estimates are estimates, not guarantees. Bill estimates, plan comparisons, carbon-intensity values (some of which are forecast or estimated and are labelled as such), savings figures, and benchmarks are calculated from your inputs and from public data, using models and assumptions. They may differ from your actual utility bill or actual grid conditions. The App is not a financial advisor and does not provide investment, tax, or financial-planning advice. You are responsible for verifying any figure before relying on it for a financial or contractual decision (such as switching electricity plans). OhayoStudio is not a party to, and not responsible for, any contract you enter with an electricity retailer.

8. Limitation of liability

To the maximum extent permitted by Japanese law, OhayoStudio’s total liability for any claim arising out of or related to the App is limited to the amount you paid for the App in the 12 months preceding the claim, or ¥10,000, whichever is greater; and OhayoStudio is not liable for indirect, incidental, consequential, special, or punitive damages, including loss of data, loss of profit, or business interruption. Nothing in these Terms limits liability for damages caused by OhayoStudio’s intentional misconduct or gross negligence, where such limitation would be invalid under the Consumer Contract Act (消費者契約法) or other applicable Japanese law.

9. Termination

You may stop using the App at any time by uninstalling it. A subscription remains valid for the period you have paid for, and a one-time unlock remains tied to your store account, regardless of uninstallation. OhayoStudio may withdraw the App from distribution, decline to renew a subscription, or refuse support if you materially violate these Terms; your local data and your right to use already-purchased periods/unlocks are not affected.

10. Severability

If any provision is held unenforceable or invalid, the remaining provisions continue in full force, and the unenforceable provision will be interpreted to accomplish its objective to the greatest extent permitted by law.

11. Changes to these Terms

OhayoStudio may update these Terms. Material changes will be communicated through the App release notes at least 30 days before they take effect. Continued use after a change takes effect constitutes acceptance.

12. Translation

These Terms are published in Japanese and English. The Japanese version is the authoritative text; in case of discrepancy, the Japanese version prevails.

13. Governing law and jurisdiction

These Terms are governed by the laws of Japan. Any dispute will be subject to the exclusive jurisdiction of the 宮崎地方裁判所 (Miyazaki District Court) as the court of first instance.

14. Apple and Google additional terms

If you obtained the App from the Apple App Store, these Terms are between you and OhayoStudio only, not Apple; Apple is not responsible for the App; Apple is a third-party beneficiary of these Terms and may enforce them; the Apple Media Services Terms (https://www.apple.com/legal/internet-services/itunes/) also apply. If you obtained the App from Google Play, the Google Play Terms of Service (https://play.google.com/intl/en_us/about/play-terms/) also apply.

15. Contact

OhayoStudio · Sadou Jérôme（サドゥジェローム） · Email: jerome@ohayostudio.com