I have a problem with the two open applications and in flight with the gl90 external gps I receive a collision alarm from my own plane
The double echo is explained in our website. You need to inform your Hexa code of your transponder ADS-B or mode S, or Flarm to avoid double echo.
This is normal, if you use 2 different systems to give your position, you will be spotted twice.
This is not an issue but information to be transmitted by the pilot.
Visit FAQ on our website: https://www.safesky.app/en/faq1?questionId=ac28ec0f-6d39-4eae-a500-03eb71b9df82&appDefId=14c92d28-031e-7910-c9a8-a670011e062d
When you are flying, SafeSky is able to detect the double echo and suggest you toi fill in your hexa code to avoid double echo.
Please let me know if it’s working for you now.