This Privacy Policy explains how Pixster Studio (“we”, “us”, “our”) handles information when you use the AI CAD Editor: DWG Viewer app for Android (the “App”). It is written to meet the requirements of the EU and UK General Data Protection Regulation (GDPR), the California Consumer Privacy Act as amended by the CPRA (CCPA/CPRA), India’s Digital Personal Data Protection Act, 2023 (DPDP Act) and Google Play’s User Data policy.
The short version: the App has no accounts and shows no ads. Your drawings, models, punch lists, photos and voice notes stay on your device. Content leaves your device only when you use Design with AI, when you choose to share or export a file, or as limited analytics and crash data described below.
What AI CAD Editor: DWG Viewer does
The App lets you open, view, measure, edit, mark up, compare and convert 2D drawings and 3D models, including DWG, DXF, PDF, STL, OBJ, PLY, glTF/GLB, 3MF, STEP and IFC files. You can keep punch lists of issues with photos and voice notes, export drawings and reports, and use Design with AI to turn a written or spoken brief into an editable floor plan or 3D model.
Information we collect
The App does not ask you to create an account or sign in. We do not ask for your name, email address, phone number or payment card details.
2.1 Information you give us
Your files: drawings, models and PDFs you open in the App. They are read and processed on your device. The App keeps a private copy of each file you open so it can reopen it later. We do not upload your files to our servers.
Punch lists: issue titles, notes, status, assignee names you type, pin positions, and any photos or voice notes you attach. These are stored only on your device.
Design with AI inputs: the brief you type or dictate, any sketch photo you choose to add, the style, units and options you pick, and the earlier layout you ask the AI to change. These are sent to our server and our AI providers to create your design (see “AI processing”).
Reports about AI results: if you use “Report this result”, we receive the reasons you pick, any details you write, the brief, the AI’s answer and the layout it made, your language and the App version. No account or device identifier is attached.
Ratings and feedback: if you rate the App in the App, we receive the star rating and the reasons you pick. If you give a low rating and write feedback, we receive that text through our crash and diagnostics service.
Support: if you email us, we receive your email address and whatever you write.
2.2 Information collected automatically
Usage information: which screens and features you use (for example opening a file, starting a design, viewing the paywall). Events are recorded without your file contents.
Device and app information: device model, Android version, App version, language and country or region derived from your IP address, and an app-instance identifier created by Firebase.
Diagnostics: crash reports and error logs, including the device state at the time of a crash, so we can fix problems.
Purchase information: your subscription status, plan, purchase token and purchase time, received from Google Play and our subscription service, and an anonymous user ID created by our subscription service (Qonversion) to link your purchases to your copy of the App. We never receive your payment card details.
App integrity: a check from Google Play Integrity, through Firebase App Check, that requests to our server come from a genuine copy of the App.
IP address: our server sees the IP address of each Design with AI request. We use it only in memory to limit how many requests can be made per hour, and do not store it with your content.
We do not collect your precise location, contacts, call logs, SMS, browsing history or advertising ID, and we do not show ads.
App permissions
The App asks for a permission only when you first use the feature that needs it. You can refuse, and the rest of the App keeps working.
Microphone (RECORD_AUDIO): used to record voice notes on punch-list issues, and to dictate a Design with AI brief.
Voice notes are saved as audio files on your device only.
Dictation is converted to text on your device by Google’s on-device speech recognition (ML Kit) where your device supports it. On devices where it is not available, the App uses your device’s built-in speech recognition service, which may process the audio under that service’s own terms (for example Google’s). The App does not store dictation audio.
Camera (CAMERA): used to take a photo for a punch-list issue. The photo is saved on your device only.
Photos and files: sketches for Design with AI are picked with the Android Photo Picker, and drawings are opened with the system file picker or from another app. The App sees only the items you choose and does not need access to your whole photo library or storage.
Internet: used for Design with AI, purchases, analytics and crash reports. Viewing and editing files works offline.
How we use your information
To provide the App’s features, including Design with AI.
To process and restore purchases and check your subscription status.
To understand which features are used, so we can improve them.
To find and fix crashes and errors.
To review reports of harmful or wrong AI results and improve the feature.
To protect our server from abuse and automated misuse.
To reply to you when you contact us.
To meet legal obligations.
We do not sell your personal information, and we do not use it for advertising.
AI processing
Design with AI is optional. When you use it, your brief, any sketch photo you add, your chosen options and the layout you are changing are sent over an encrypted connection to our server, which runs on Google Cloud Functions for Firebase in the United States (us-central1). Our server passes this content to one of these AI providers to generate the design:
Anthropic (Claude): our default model for designs. Anthropic acts as our service provider. Privacy policy: https://www.anthropic.com/legal/privacy
Google (Gemini API): used when you choose a Gemini model, and to research a real building or project named in your brief. For that research, Gemini searches the web with Google Search, and our server reads public pages such as a project brochure. Google acts as our service provider. Privacy policy: https://policies.google.com/privacy
The model in use is shown in the Design screen, and you can switch between them.
Before your first design, the App shows a notice explaining that your brief, any sketch and your chosen options are sent to Anthropic or Google to create the design. Nothing is sent unless you tap Proceed. If you do not proceed, you can keep using the rest of the App.
No training: we use these providers’ paid APIs, under which they do not use your content to train their models.
Retention: our server does not store your brief, sketch or design. The AI providers may keep inputs and outputs for a limited time under their API terms, for safety and abuse monitoring, and then delete them. Public research results about a named building (the sources and their text, not your brief) are cached on our server for up to 30 days, linked only to a one-way code made from the request, so the same research does not have to be repeated.
Do not include sensitive information in a brief or sketch, such as personal details about other people, passwords or confidential client information you are not allowed to share.
Accuracy: AI-generated plans and models may contain mistakes. Check them before relying on them (see our Terms of Use).
Reporting: you can report an offensive, harmful or wrong result from the result screen with “Report this result”.
How we share information
We share information only with these service providers, who process it for us under contract, and only as needed to run the App:
Google Firebase (Analytics, Crashlytics, Cloud Functions, Cloud Firestore, App Check): usage statistics, crash reports, running our server and app configuration. https://firebase.google.com/support/privacy
Google Signals: we may turn on Google Signals in Google Analytics. If it is on, and you are signed in to a Google account that allows ad personalisation, Google links App usage data to your Google account so we can see combined statistics, such as usage across devices and broad age, gender and interest groups. We see only combined reports, never your Google account details. You control this in your Google account at https://myadcenter.google.com.
Anthropic and Google Gemini API: Design with AI, as described above.
Qonversion: checks and records the status of your subscription. https://qonversion.io/privacy
Google Play: downloads, purchases, subscriptions, refunds and in-app reviews are handled by Google under its own privacy policy. https://policies.google.com/privacy
We may also share information:
For legal reasons: if required by law, or to protect the rights, property or safety of our users, the public or Pixster Studio.
In a business transfer: if Pixster Studio is involved in a merger, acquisition or sale of assets, under the same protections as this Policy.
With your consent or at your direction: for example when you share or export a drawing, report or model to another app. That app’s own policy then applies.
Our service providers must protect your information to the same standard as this Policy.
Legal bases for processing (EEA and UK)
Contract: to provide the features you use, including Design with AI, and to handle purchases.
Legitimate interests: analytics, crash reporting, app integrity checks and abuse prevention, to keep the App working, safe and improving. We use analytics only to produce statistics about how the App is used so we can improve it. We do not use it for advertising. You can object to analytics and crash reporting at any time by emailing us (see “Your choices”).
Consent: microphone and camera access, which you can withdraw in your device settings at any time.
Legal obligation: keeping purchase records and responding to lawful requests.
Data retention and deletion
On your device: files, punch lists, photos, voice notes, designs and settings stay until you delete them in the App or uninstall it. If Android backup is turned on for your device, this data may be included in your Google backup under Google’s terms; you control that in your device’s backup settings.
Design with AI content: not stored on our server. AI providers keep it only for the limited time set by their API terms.
Researched building references: up to 30 days.
Reports about AI results: kept in our server logs for 30 days, then deleted.
Analytics data: kept for 14 months.
Crash reports and feedback text: kept for 90 days.
Server request logs: technical records without your content, kept for 30 days.
Purchase records: kept while your subscription is active and afterwards as long as tax and accounting laws require.
Because the App has no accounts, we cannot link analytics or crash data to you by name. To delete data kept on our side, email feedback@pixsterstudio.com. If you can, include your Google Play order ID so we can find purchase records. Uninstalling the App deletes the data on your device but does not cancel a subscription.
Data security
We use encrypted connections (HTTPS) for all data sent from the App, restrict access to our server and keys, and check requests with Firebase App Check. No method of storage or transmission is completely secure, but we work to protect your information.
International data transfers
Pixster Studio is based in India, and our server and service providers are mainly in the United States. When information is transferred outside your country, we rely on safeguards such as the European Commission’s Standard Contractual Clauses offered by our providers.
Your choices
Permissions: turn microphone or camera access on or off in Android Settings → Apps → AI CAD Editor → Permissions.
Google account: to stop Google linking App usage to your Google account, turn off ad personalisation at https://myadcenter.google.com.
Analytics and crash reports: to object to analytics or crash reporting, email feedback@pixsterstudio.com. This is free and does not affect any feature. Because the App has no accounts, we may ask for information that helps us find the data linked to your copy of the App.
AI features: Design with AI is optional. Nothing is sent to an AI provider until you tap Proceed on the notice shown before your first design. If you do not use it, nothing you create is sent to an AI provider.
Sharing: files leave the App only when you choose to share or export them.
Backup: control Android backup in your device settings.
Subscription: manage or cancel in Google Play Store → Profile → Payments & subscriptions → Subscriptions.
Your rights
Depending on where you live, you may have the right to:
access the personal information we hold about you and get a copy;
correct inaccurate information;
delete your information;
restrict or object to processing, including processing based on legitimate interests;
receive your information in a portable format;
withdraw consent at any time, without affecting earlier processing;
complain to your local data protection authority.
We do not make decisions about you based solely on automated processing that have legal or similarly significant effects. To use any of these rights, email feedback@pixsterstudio.com. We will reply within 30 days and may ask for information to confirm the request is yours.
California residents (CCPA/CPRA)
In the last 12 months we have collected these categories of personal information: identifiers (Firebase app-instance identifier, Qonversion anonymous user ID, IP address), commercial information (subscription status and purchase records), internet or other electronic network activity (app usage events) and the content you submit to Design with AI. We collect them for the purposes in “How we use your information”. We do not sell or share your personal information for cross-context behavioural advertising, and we do not use or disclose sensitive personal information to infer characteristics about you. You have the right to know, delete and correct your information, and we will not discriminate against you for using these rights.
Users in India (DPDP Act, 2023)
We process the data described in this Policy for the purposes stated here:
Data you choose to give us (Design with AI briefs, sketches and options, reports about AI results, ratings, feedback and support emails) is used only for the purpose you gave it for, as a legitimate use under section 7(a) of the DPDP Act.
Analytics and crash reports are optional. You can object to them at any time by emailing feedback@pixsterstudio.com.
Purchase records are kept as the law requires.
The App is not intended for users in India under 18.
You have the right to a summary of the personal data we process, to correct, complete, update or erase it, to nominate another person to exercise your rights in the event of death or incapacity, and to withdraw consent as easily as you gave it. If you have a grievance, contact our Grievance Officer. If you are not satisfied with our response, you may complain to the Data Protection Board of India.
Grievance Officer
Pixster Studio, Ahmedabad, Gujarat 380015, India · feedback@pixsterstudio.com. We respond within 30 days.
Children’s privacy
The App is a general-audience design tool and is not directed to children. You must be at least 13 to use it, or at least 18 if you are in India. We do not knowingly collect personal information from children under 13, or from users in India under 18. If you are under 18, or under the age of digital consent in your country, you should use the App only with the involvement of a parent or guardian, who is responsible for that use. If you believe a child has given us personal information, or you are a parent or guardian and want information about your child deleted, contact us and we will delete it.
Changes to this Privacy Policy
We may update this Policy when the App or the law changes. We will change the effective date above, and tell you in the App about any significant change, such as a new type of data or a new service provider. The Google Play Data safety section for the App reflects this Policy.
Contact us
Pixster Studio, Ahmedabad, Gujarat 380015, India · feedback@pixsterstudio.com