OFFLINE MODE

D-Calc is a progressive web app (PWA), but does function without internet connectivity, using code and graphics that are cached on the device. Here are a few best practices and tips for successfully using D-Calc without internet connectivity:

  •  It’s best to “ping” D-Calc while you still have internet connection. For example, before heading out to the field, simply open and then close D-Calc on your device. Doing so will ensure that everything is current and that the cache on the device is initialized. There can be issues when D-Calc has not been used for a long time (weeks) and then is opened in offline mode. This “ping” should alleviate such issues.
  • D-Calc will perform a license check every 30 days. If D-Calc has not been used in online mode in over 30 days, then it may fail to function if opened in offline mode.
  • If you have very poor cellular coverage, D-Calc actually functions better in Airplane Mode. If there is a very weak cell signal, D-Calc will try to hit the server and may fail or take a long time to achieve success. Switching the device to Airplane Mode bypasses this process, so you may see a faster initial load.

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