Usage Notes

Things to know before using our Web Apps

• Please review our User Agreement and our Privacy Policy. 

• Our apps are web apps. They run in your browser. JavaScript must be enabled. You'll need a web (internet) connection. 

• You need to be logged into your Google account.

• Your browser must be a Chromium compatible browser, e.g. Google Chrome, Microsoft Edge, Vivaldi, Brave, or Opera.  While not strictly chromium compatible, our apps should run on Mozilla Firefox.

• Using a Chromium compatible browser or Firefox, our web apps will run on Windows, Linux, Chrome OS devices, and Android phones/tablets. Our apps won't run on Apple devices, whose browsers, even Chrome and Edge, use WebKit.

• Our apps are designed to run in portrait mode (typical for phones and tablets), and landscape (typical for desktops and laptops). For devices with similar width and height (squarer, less rectangular), the portrait mode will probably be better.

• If the app connects to an external service or a Google Workspace App(s), which may expose your private data to me, at first startup you'll be informed why the app needs this access, and prompted to approve. The web app's home page will have Supplemental Usage Notes if any startup permissions are needed

• Use is free. There are no ads. 

To run for first time, follow web app's link

• Each web app has a home page with a 'Web app link" at top of page. Following this link will start the web app.

• The web app's home page will have Supplemental Usage Notes if any startup permissions are needed.

To use again, bookmark link. 

On a desktop/laptop

• There's typically a browser menu command called add new bookmark .With Chromium browser there's star icon in url box, or menu command.

• The bookmark will use the app's icon and title. Your browser will let you organize your bookmarks.

On a phone/tablet

• With Android, the Chromium browser has an 'add to home screen' command. The icon is a colored chromium page icon, rather than the app's icon, but the bookmark has the title of the web app, i.e. 'RPN Crunch3'.

• Once on home screen you can move the shortcut to where you want. 

To upgrade, bookmark new link

• To know if a new version exists, periodically compare: 

  • The version no. and date shown on Description | About section of each App's Help page, and 

  • The version, and date shown the app's web home page. There's a link to the  web app's home page in the Description | Upgrade section of the web app's Help page.

• If a new version exists, click the new link on the web app's home page, and: 

  • Remove the old bookmark, which will run the old link.

  • Bookmark the new link. By bookmarking the new link, you're running the new version.