One of the most balanced delivery markets in Germany sits in Frankfurt: 86 deals on Lieferando, 60 on Wolt, 58 on Uber Eats. Average discount is 42%. If you stick to one app here, you are leaving more on the table than in any other German city.
Barely any gap between the three platforms in Frankfurt. Lieferando has 86 deals, Wolt 60, Uber Eats 58. The ranking between Wolt and Uber Eats could easily flip next week. All three belong on your home screen.
Three platforms at nearly identical volumes means the cuisine filter matters more than the platform filter here. Pick Italian, Indian or American first, then see what each service has for that food. Set a minimum discount and the token 10% offers go away.