I am using Blynk with my Photon to send temperature and humidity readings. Everything works fine.
The only thing I noticed, when the Blynk app is open on my mobile device the Photon disconnects from the cloud quite often for a short period of time. If the Blynk app is closed the Photon seems to work fine.
Thank you for your reply. My problem was that I had the the the Blynk.virtualWrite() function inside the void loop and I thought that the delay() function was enough to control the flow of data Photon sends to Blynk!