Below is a list of frequently asked questions and their answers.
Do you have another question? Feel free to ask in the comments below!
Question | Answer |
|---|---|
| What is the accuracy of the app? | The accuracy depends on the accuracy of the test strips. The test strips for nitrate give an indicative measurement. In our test we've found an accuracy of ca. 30%, while conventional laboratory measurements have an accuracy around 10% |
| What does it cost? | Ca. 0,50 EUR per measurement. Check the getting started page for an order form. |
| What is your business model? | Like all Deltares software, the app is free ('dare to share'). We're mainly interested in finances for the next steps forward, which can become available for the entire users community. Organisations with specific requests (e.g. other parameters, an own private webviewer) are encouraged to contact us. |
| How can I give the app the rights to use my smartphone's camera? (this is sometimes blocked e.g. on SAMSUNG S6) | In the security options of your smartphone. For the SAMSUNG S6: go to the app access rights in the privacy settings. Select 'Camera' and give the Water Quality app access. |
