Yes. 

To change the language, follow these steps:

1. Launch the Purezone app
2. Tap the Settings Gear icon in the upper right-hand corner
3. Tap Region & Language
4. Select the Region:  France or United States
   1. For the United States Region there are 3 language options in Android:  English, French or Deutsch (German) and 4 language options in iOS:  English, Spanish, French and German
   2. Tap the language, i.e. French
   3. Tap Save & Exit
   4. At the "Change the Application localization" prompt, select "Change & Exit"
   5. A message will be displayed indicating that the language has been changed.  Tap the message to re-launch the Purezone app
5. Select the Region: France or United States
   1. For the France Region there are 3 language options in Android:  English, French or Deutsch (German) and 4 language options in iOS:  English, Spanish, French and German
   2. Tap the language, i.e. German
   3. Tap Save & Exit
   4. At the "Change the Application localization" prompt, select "Change & Exit"
   5. A message will be displayed indicating that the language has been changed.  Tap the message to re-launch the Purezone app

Note:  Changing the language to Spanish or French with the United States set as Region will still display the Water Temperature in degrees Fahrenheit. 

Note: The only way to display the water Temperature in degrees Celsius is to change the Region to France.  With the Region set as France, the water Temperature will be displayed in Celsius and you can set the language as either English, French or Spanish.