Well, I run an Agency Agicent App Company (https://www.agicent.com) that has been creating/ managing/ handling apps for almost 12 years. Handled MVPs to full scale Apps like HASfit that gets 4 million active user so I think I can answer this question with possible cost breakdown - (Note - am considering Tinder features as of Dec 2021 and a comparable quality product and not just half baked one) -

1. Wireframes & Designs - Approx 200-300 hours, cost $ 6 to 8 K
2. Architecture & Design/ Tech identification - Approx 160 Hours, Cost $ 5 - 6 K.
3. Implementation on Front end (on iOS/ Android) - Apprx 700-800 hours, cost $ 15-20 K.
4. Implantation on backend and admin panel and integrations with payment gateways, third party SDKs, analytics etc - Approx 500 hours - Cost $ 15 K.
5. Testing - Approx 300 hours, cost $ 6 K.
6. Project Management - Throughout, Cost 12 K
7. Server side cost/ AWS etc - nominal unless you buy a slew of services or have large no of users.
8. Maintenance - almost 200 hours a month would do the job of maintenance very well.

Now, you can get a quote of half the price (and even 1/4th of this) when you go out shopping for the app development quote and that will vary geography by geography; but If I do it and you want as good as a product as Tinder then above cost holds true.
Hope this helps, feel free to book a call for more discussion on app development costs, revenue generation methods, app promotion, setting offshore development team. Here is the link to book a call -https://clarity.fm/app-developer

And here is an interesting app cost calculator from us, we prepare manual quote and share with anyone who fills it - https://www.agicent.com/app-development-cost-calculator