You wrote: <<but most women don’t use it>>
First, do you have any sources? Most (Western culture) highly-educated women that I know use online dating apps.
Second, as I understand, a major issue about dating with highly-educated people: Women (almost) always want to meet same socio-economic status or above. Dear HN readers: Read that last sentence mathematically: Greater than or equal (>=)! As women are quickly holding more than 50% of highly educated jobs (economically practical masters degrees and above), this creates a huge mismatch. See: Medicine, science, finance, technology jobs. (Commentary: By 2030/40/50, I feel a huge portion of medicine will be women. Great!)
Real-world example: If a man is a public pre-school or elementary school teacher (middle to lower income), his chances to meet a high-income woman are very low in 2022.
On the contrary, many (Western culture) men are happy to meet / date / marry women whom have (far) lower socio-economic status. "Sexy, not smart." In the classic (out-dated) cultural view, this is "big (male) boss" dates/marries low socio-economic status executive assistant ("secretary"). I have observed this is quickly coming to an end in the last twenty years.
Real questions:
(1) Whom are high-income male bosses dating these days? I assume: High-income women whom are breaking the glass ceiling for senior roles. (Great! I support these women 152%!) Or: These men date younger (and younger!). I have observed both in my professional career.
(2) Whom are low-income/-education female executive assistants dating these days? I assume they are mostly single. Why? They want to meet high-income men, but these men are more-and-more focused on other (still rare!) high-income women(!).
Final comment that is very (deeply!) personal: If you are not alpha-male or very high income, it is difficult to meet highly-educated women. Basically, they are "vaccuumed/Hoovered" (sorry: American English slang!) by other high-income/status or alpha men. It is so tough. Please, please, do not read this final paragraph as discriminatory against women whom choose these men. Dating is complex! Personally, my dream is to meet someone who is a science researcher (academic) with a low salary, but passionate about their work. Lots to talk about!
Last: Please, please don't read any of this post as something negative towards women. No, exactly the opposite. I am more interested in how wealthly, highly-educated societies will rebalance when women hold more than 50% of educated positions (very soon in rich countries!). In my view, it is terrific that women finally have equal opportunity in my society. My mother never had these opportunities, but her daughters will finally have the chance for economic equality. Huzzah.