STEP DWG Viewer · com.bx.app.occt

Privacy Policy
개인정보처리방침 · プライバシーポリシー

Effective 22 September 2026 · 시행일 2026년 9월 22일 · 施行日 2026年9月22日

In short. STEP DWG Viewer runs entirely on your device. We operate no server, we hold no account for you, and your drawings are never uploaded to us. The only data that leaves your device does so because you asked for it — signing in to a cloud storage service you chose, or sharing an image yourself — with one exception: the banner ads in the app are served by Google, which collects the limited data described below.

1. Who we are

This policy covers the Android application STEP DWG Viewer (package com.bx.app.occt), published by KRSTE ("we", "us"). It explains what the app does with your information and what it does not.

2. Information we do not collect

We do not ask you to create an account. We do not collect your name, email address, phone number, contacts, calendar, location, photos or microphone input. We do not run analytics, crash-reporting or tracking SDKs of our own, and we do not build a profile of you.

The CAD files and drawings you open are never transmitted to us. We have no server that could receive them.

3. Information processed on your device

The app stores the following in its own private storage area on your device. None of it is sent anywhere.

WhatWhy
A copy of the files you open Drawings you choose are copied into the app's private folder so the viewer can read them, and so your original file is never modified.
Thumbnails and prepared geometry Cached so the recent-files list has previews and so reopening a large assembly is fast.
Recent files list File names, sizes and the time you last opened them.
Cloud sign-in tokens Stored encrypted (Android EncryptedSharedPreferences) so you do not have to sign in again each time. Never transmitted to us.
Display preferences Background, display mode and similar view settings.

4. Permissions the app requests

You can refuse storage access and still use the app through the system file picker. Refusing simply limits the built-in browser. The app does not request the "All files access" (MANAGE_EXTERNAL_STORAGE) permission.

5. Cloud storage connections

If you choose to sign in to Dropbox, OneDrive, OneDrive for Business or a WebDAV server, the app talks to that service directly from your device. Your credentials are entered on the provider's own sign-in page (or, for WebDAV, sent only to the server address you typed) and are never seen by us.

We request read-only access. The app lists folders and downloads the file you pick. It cannot upload, modify or delete anything in your cloud account.

Signing out inside the app deletes the stored tokens from your device. You can also revoke access from the provider's own account settings at any time.

6. Advertising

The app displays banner advertisements through Google AdMob. To serve and measure ads, Google may collect information such as your device's advertising identifier, IP address, device model, operating system version and interactions with the ad. This processing is carried out by Google as an independent controller under its own policies:

You can limit ad personalisation on your device under Settings → Google → Ads, or reset your advertising ID there.

7. Images you save or share

When you capture the current view, the image is saved to your device's gallery. When you share it, it goes to the app you choose. We receive no copy in either case.

8. Children

This app is a technical tool for viewing engineering drawings. It is not directed to children and we do not knowingly collect information from children.

9. Deleting your data

10. Changes to this policy

If this policy changes we will update this page and the effective date at the top. Material changes will also be noted in the app's release notes on Google Play.

11. Contact

Questions about this policy or about the app: support@example.com