I (female, 50s) have not 'dated' as such, but have joined a Facebook dating group and it's been fab. I ride downhill mountainbike and the ration of men:women is around 20:1, so I have not been short of attention. The group rides have a better ratio of 6:4, and I can really recommend pursuing a traditionally male hobby.
However, I am also taking HRT with testosterone and my zest for living and libido have skyrocketed. So perhaps I am actually slowly tuning into a man ;-)
The apps have not held any appeal to me, as attraction just does not work for me that way, and I would not have chosen or even met my current fling at all. There is just too much potential to start selecting people based on some imaginary shopping list (tall, income, education, photogenic, etc.)
Also, the business model of the apps is set up to keep you looking and keep using them. I imagine that a dating system that wold actually work, would not be solely online, but would involve meet-ups (e.g., online speed-dating), and a more tailored and personalised approach to get people actually talking to each other.