Last updated: 27 August 2026
3D & CAD Viewer (“the app”, package com.webtech360.viewer3dcad)
is published by Tapline Studio. Your 3D models and CAD files remain on your
device and are never uploaded to us. The app has no account system and this
release contains no advertising.
Google Analytics for Firebase is disabled by default. The app asks before enabling it, and declining does not affect any viewer feature. If you allow analytics, Google Analytics for Firebase collects app opens, sessions and screens used; app version; device model and operating-system information; a coarse region derived from the device IP address; and a pseudonymous Firebase app-instance identifier. We use this information only to understand aggregate app usage and improve reliability and features.
The app does not send Google Analytics your name, email address, account ID, precise location, Android advertising ID, model file names, file paths, file contents, model metadata or measurements. Advertising storage, advertising user data and personalized-ad signals are denied. Analytics data is encrypted in transit. Google processes this data as our analytics service provider. See Google's Privacy Policy and How Google uses information from apps that use its services.
All 3D models and CAD files you open are processed entirely on your device. They are never uploaded to, stored on, or seen by our servers or by Google Analytics. For convenience, the app keeps a private on-device copy of opened files in the Recent list. You can remove these copies with the Clear action or by uninstalling the app.
The app accesses a file only when you explicitly select or share it through Android. It does not request access to contacts, camera, microphone, precise location or background location. It does not request the Android advertising ID permission.
Most viewing features work offline. STEP, IGES, BREP, 3DM, 3MF, VRML and LAZ require an optional, one-time viewer-engine download that begins only after you approve it. Engine files are downloaded over HTTPS from the jsDelivr content delivery network, verified for integrity and stored on-device for later offline use. jsDelivr may receive normal web-request information such as your IP address, network information, requested library URL and request time. Your model file is never included in this request.
You can enable or disable anonymous usage analytics at any time under Settings > Privacy. You can also use “Reset analytics identifier” there to disable collection and reset the local Analytics identifier. Files in the Recent list can be removed with Clear or by uninstalling the app.
Tapline Studio does not operate a server containing your model files or an account profile. Analytics retention is managed in Google Analytics for Firebase. Disabling Analytics stops future collection on the device. For a privacy question or deletion request relating to data we control, contact us using the address below.
The app is a general-purpose file-viewing utility and is not designed specifically for children. We do not knowingly ask children to provide personal information.
If this policy changes, the updated version will be posted at this URL with a new “Last updated” date.
Questions or privacy requests: [email protected]. Website: viewer.webtech360.com.