Privacy policy
JustDraw 3D helps you draw by tracing a picture through your phone's camera, painting, colouring and following lessons. Your drawings, photos and videos stay on your phone: there is no account, no cloud sync and no server of ours. Two optional AI tools use Google Gemini with your own API key, and each asks before it sends anything. The app shows one ad card from Google AdMob. Each part is explained below.
At a glance
| What | Who gets it | When |
|---|---|---|
| Your tracings, paintings, reference pictures, photos, videos, album and lesson progress | No one. They stay in the app on your phone. | Always |
| Camera images while you trace, including AR tracing | No one. Google Play Services for AR processes AR on the phone. | Only while a camera screen is open |
| A photo of your drawing (and its reference picture, if you add it) with your note | Google (Gemini API), with your own key | Only when you ask for an AI critique and confirm |
| The text prompt you write | Google (Gemini API), with your own key | Only when you ask for an AI sketch and confirm |
| Advertising ID, IP address, app and ad interactions, diagnostics | Google AdMob | When the ad card loads |
| Files you save or share (pictures, videos, postcards) | The app or folder you choose | Only when you tap Save or Share |
What stays on your phone
- Your work. Tracings, paintings, colouring pages, postcards, the album and lesson progress are kept in the app's private storage.
- Camera. The camera is used only while a tracing or photo screen is open. Photos and time-lapse videos are saved only when you take or record them.
- Microphone, only if you choose. When you record a tracing video, you can include sound. Only then does the app ask for microphone access; the sound stays in that video on your phone.
- Your Gemini key is encrypted on the phone with Android Keystore. Saving a key makes no request.
- Backups. Android backup is off. Files you save or share are your copies.
AR tracing (Google Play Services for AR)
This application runs on Google Play Services for AR (ARCore), which is provided by Google LLC and governed by the Google Privacy Policy. ARCore uses the camera and motion sensors on the phone to keep the picture in place on your paper; the app does not use ARCore's cloud features. If Google Play Services for AR is missing, the app asks before Google Play installs it.
Optional AI tools, with your own key
AI critique and AI sketch are off until you add your own Gemini API key in AI settings. Each asks for your confirmation before it sends anything, and Google's terms and charges for your key apply. We never see your key, your drawings or your prompts.
- AI critique sends a photo of your drawing, the reference picture if you add it, and your note to the Google Gemini API, which returns tips.
- AI sketch sends the prompt you write, and returns line art you can review before you use it.
- Requests ask Google not to store them. Google's Gemini API terms apply, including how Google may use data sent with a free key.
- If an AI result is offensive or wrong, tap Report under it to email us.
Ads (Google AdMob)
The app shows one ad card at the end of your saved tracings in Projects. There are no full-screen ads and no ads on the camera, painting or lesson screens. The app sends nothing from your drawings, photos or videos to AdMob. To show and measure ads and to prevent fraud, Google may collect and use:
- your device's advertising ID and other device identifiers;
- your IP address, from which an approximate location can be worked out;
- device and app information, such as the phone model, Android version and language;
- how you interact with the ads, and diagnostic information.
In the European Economic Area, the UK and Switzerland, Google's consent form appears before any ads load. Change your choice any time from the app's menu › Ad privacy. You can reset or delete your advertising ID in your phone's Android settings under Privacy › Ads. More: how Google uses information from apps that use its services.
What we don't do
- We don't run servers for this app, and we never receive your drawings, photos, videos, prompts or keys.
- We don't sell your data.
- No analytics and no other trackers than the services on this page.
Keeping and deleting
| What | Kept | How to delete |
|---|---|---|
| Tracings, paintings, photos, videos, album and progress | On your phone, until you delete them | Delete them in the app, clear the app's storage, or uninstall the app |
| Your Gemini key | On your phone, until you remove it | AI settings › remove the key, or uninstall the app |
| Data sent to Gemini | Under Google's policy | With Google, through your own account there |
| Ad data held by Google | Under Google's policy | Android ad settings or My Ad Center |
We hold no account or data about you for this app. Questions: [email protected]. We answer within 30 days.
Children
JustDraw 3D is made for adults (18+). It is not directed at children, and we don't knowingly collect data from them.
Changes
If this policy changes, we'll update this page and its effective date.
Contact
JustDataPlease · [email protected] · justdataplease.com