Propstream or Property Radar?

[Scott M Marcus]

I flipped a few houses many years ago before having kids. Now my kids are basically grown and I'm a few years from retirement (I'm a teacher). I want to start flipping again and have enough cash to work with. I also may keep a few houses along the way to add to my rentals (I have 4). I know the markets have changed and I have read that I need to use data to find good deals. I think I want to use Propstream or Property Radar, but not sure. Any other suggestions/advice will be appreciated. Best wishes!