At the moment, only 10% of projects expect to create their own product or have already created it. The remaining 90% is either fraud or projects that will soon be frozen. Analyze the project completely. The only way to save your time and make a profit.
Unfortunately, it's impossible to make a perfect analysis that will give you correct information about a project's future. A lot of platforms are developed actively while they are at the stage of crowdfunding, but right after tokensale ends the team just disappears and all distributed tokens become useless and "priceless".