I use MySugr paired with my Accu-Chek Guide and love it.

It even sends me an email every Saturday to compare how things went this week compared to last week.

But did like my trial/testing with the Freestyle Libre. Overall it was "close enough" but the insight and constant tracking are more than valuable. And when I get to the point where I have be much more concerned with my blood sugar, I will switch to a CGM. It just doesn't compare to a single stick test here and there that gives you such limited information.

In case you didn’t know, the CGM is 10-15 minutes behind the blood glucose meter. It uses interstitial fluid, not blood. I use Freestyle Libra2 and my phone. When I put on a new sensor every 2 weeks, it takes about 12 hours for more accurate readings. It will never match blood glucose. Also, sometimes, there is a malfunction and the sensor needs replacement by the company. Mine has alarms. If there is a question about accuracy, there is a symbol telling me to check my blood with the old finger stick.
This disease is trial and error, and try again with diet, exercise and meds. Good luck. You CAN do this!