Can SAT and ACT Prep scholar help my child raise her scores?

My daughter is planning to retake both the ACT and SAT in October. I want to know if 3 months of prep scholar complete will help her bring her ACT and SAT score up. Her first scores are ACT, CR: 30, 36, 28 and SAT, 690, 640, 640. She needs to raise her scores substantially to get into her target schools. Her above score was her 1st time with no prep to see where she was overall.

SAT was 1330 is it possible to raise her score by 200 pts and her ACT by 3 pts using prep scholar?