This Privacy Policy describes how Tenki ("we", "us") handles information in the "Japan Organic Recipe" app (the "App"). The App suggests organic-minded Japanese recipes generated by AI from the ingredients in your fridge, which you photograph or enter by hand.
1. Introduction
We respect your privacy and collect only the minimum information necessary. Notably, your cooked-dish photos, share images, favorites, and recent suggestion history are stored only on your device and are never sent to our servers (see Section 3).
2. Information We Collect
| Category | Details |
| Account | Identifiers from Apple / Google sign-in, and email address where provided (including Apple's Private Relay email) |
| Ingredient photos | Photos taken to recognize your ingredients. These are sent to our server and AI provider for analysis (Section 5) |
| Recipe generation logs | Recognized ingredients, generation conditions (cooking time, servings, etc.) and results. Kept with personal data minimized |
| Purchase | Subscription purchases and status (payments are processed via RevenueCat and the app stores; we do not store card details) |
| Usage & analytics events | In-app events (sign-in, recognition run, generation run, billing status changes, etc.). We do not include personal data such as email, nor cooked-dish photos (only identifiers such as an internal user ID) |
| Device & logs | Access timestamps, error information, request identifiers and similar technical data |
3. Information Kept Only on Your Device
The following are stored only on your device and are never sent to our servers, AI, or analytics. We never view, retain or publish them.
- Cooked-dish photos you capture or add
- Share images generated for social media
- Favorite recipes (up to 20) with star ratings and notes
- Recent recipe history (up to 3)
- In-app settings such as units, servings and notifications
These are not synced across devices and may be lost if you delete the App or change/damage your device.
4. How We Use Information
- To provide the App (AI ingredient recognition, Japanese recipe generation, estimated nutrition).
- To provide subscriptions and manage entitlement status.
- To display advertising (for users on the free plan).
- To improve quality, fix issues, and produce statistics/analytics.
- To respond to inquiries and prevent abuse or violations.
- To comply with laws.
5. AI Ingredient Recognition & Recipe Generation
To recognize ingredients and generate recipes and nutrition information, ingredient photos and generation conditions are sent, via our server, to our AI service provider (currently OpenAI, Inc.), which returns the results. That provider's handling of data (retention, and whether it is used for training) follows the API configuration we select and the provider's terms.
Under the provider's API policy, images and input/output data sent for AI processing are not used to train or improve AI models by default, and are retained for up to 30 days for purposes such as abuse monitoring before deletion (subject to the provider's current policy).
Recipes, calories and macronutrients (PFC) shown by the App are AI estimates and suggestions and are not guaranteed to be accurate. If you have allergies or medical conditions, always check the actual ingredients yourself and consult a physician or registered dietitian.
6. Sharing & Processors
Except as required by law, we do not share personal information with third parties without consent. We use the following processors to operate the service:
- AI ingredient recognition / recipe generation: OpenAI, Inc.
- Billing / subscription management: RevenueCat, Inc. and Apple / Google
- Advertising: Google AdMob (Google LLC)
- Cloud infrastructure (servers, storage): Google Cloud (Google LLC)
We do not sell collected information to third parties for advertising.
7. Advertising
For users on the free plan, the App displays banner ads via Google AdMob. AdMob may collect and use information such as an advertising identifier to serve ads. You can change ad personalization and tracking settings from your device settings (e.g., "Allow Tracking" on iOS). No ads are shown on the paid (Premium) plan.
8. Data Retention
- Ingredient photos are deleted promptly after recognition and, on our servers, are removed within 24 hours at most.
- Recipe generation logs are retained only as needed for quality improvement and abuse prevention, with personal data minimized.
- After an account deletion request, data remains recoverable for 30 days; after 30 days the related account information is permanently deleted (except records we must retain by law).
9. International Transfers
Due to AI processing and cloud infrastructure, data may be processed outside Japan (e.g., in the United States). By agreeing to this Policy, you consent to such transfers.
10. Your Rights
- You may request disclosure, correction, deletion, or suspension of use of your information.
- You can delete your account and related data from "Delete Account" in the App.
- On-device photos, favorites and settings can be removed within the App or by deleting the App.
- To withdraw consent or exercise your rights, contact us below.
11. Security
We implement reasonable safeguards such as encryption in transit and access controls to protect information against leakage, alteration and unauthorized access.
12. Children
The App is intended to be used with the consent and supervision of a parent or guardian. Where a child uses the App, they should do so under a guardian's responsibility.
13. Changes
We may update this Policy as needed. Material changes will be announced in the App or on this page.
14. Contact
For questions about this Policy or our handling of personal information, contact [email protected]. Related: Terms of Use