Privacy
Last updated: September 7, 2026
sukuji (the Service) is a web tool that generates App Store screenshots. This policy sets out what information it handles and what it does with it.
1. The part that matters most
The screens you upload may be sent to an image-generation AI.
To build the artwork around your screens - the background, the props, the sense of depth - the Service places your screen inside a phone frame and sends that image to an image-generation AI. Section 3 names the providers.
The model is instructed not to alter your screen, but fine detail can still be redrawn during generation. Because that cannot be ruled out, do not upload screens containing confidential information or other people's personal data.
Headline text is drawn by code, not by AI. Letters do not break, and the typeface stays the same across all five screens.
2. What is collected
| Data | How | Used for |
|---|---|---|
| Your app screens (up to 3) |
You upload them | Composing the screenshots and generating the artwork around them |
| App name and description | You type them | Writing the headlines and choosing the colours |
| One identifying cookie | Automatic | Counting your generations for the day, nothing else |
| IP address and time of access |
Automatic | Preventing abuse and monitoring uptime |
As of September 7, 2026, no account is required. No name, email address, phone number or payment details are collected. If that changes as features are added, this page will be updated first.
3. Who else receives data
The Service uses the providers below to plan the design and generate the artwork. They are located outside Japan, so this may constitute a cross-border transfer of personal data. By using the Service, you consent to that transfer.
| Provider | What is sent | Location |
|---|---|---|
| Google （Gemini API） |
The app name and description you typed The app screens you uploaded |
United States |
| OpenAI (image generation API) |
The app screens you uploaded and the instructions |
United States |
Google (Gemini API) and OpenAI (image generation API) are both used on paid API plans, which means what is sent is not used to train their models. They may, however, retain it for a limited period to monitor for abuse.
Hosting and network delivery are also handled by providers outside Japan. They may process data only as far as running the Service requires, and they are supervised accordingly.
Nothing is shared with anyone else, except where the law requires it.
4. How long anything is kept
- Uploaded images and generated screenshots are deleted automatically 24 hours after generation.
- They are also deleted whenever the server is redeployed or restarted.
- No backups are kept. Download anything you want to keep.
5. Cookies
One identifying cookie is stored, for the sole purpose of counting your generations for the day. It is not used for advertising or tracking and is not shared with anyone. You can delete it in your browser, but then the daily count will not work correctly.
Aggregate traffic may be measured with an external analytics tool. If so, it works without cookies and does not identify individuals.
6. Security
- All traffic is encrypted with HTTPS.
- Generated files sit at URLs with identifiers that are hard to guess. Even so, anyone who has the URL can open it, so be careful where you share it.
- Access to collected data is limited to the operator.
7. Your rights
To see, correct or delete the data held about you, write to the address below. Generated files are deleted automatically after 24 hours, so if you want something removed sooner, tell us quickly.
8. Minors
If you are under the age of majority where you live, use the Service only with the consent of a parent or guardian.
9. Changes to this policy
This policy may be updated. A new version takes effect when it is posted on this page.
10. Contact
Questions about this policy:
[email protected]