(SOLVED) History Graph not working with Photon and iPhone

[Eugene]

@IOTrav

char frequency[10];
sprintf(frequency, “%.2f Hz”, controller.readFreq(1));
Blynk.virtualWrite(V0, frequency);

The issue might be that server does not recognize it as a valid number input.

@IOTrav

Using a Graph and Label widget I am able to view the status of V0, V1, and V2 and they are correct.

Unlike the History Graph widget, these are converted to numbers on the app side.