I've done my own digging on which are currently the biggest dating apps and come up short. The count apps angle is worse, because the platform auto-renews without a clear warning, so the first fortnight tells you almost nothing. If count apps is your priority, how many first messages actually land collapses as soon as the platform quietly widens your distance setting.
For biggest apps in particular, the time it takes to get a first reply outweighs the size of the database, from what I've seen. I judge count on one thing: nothing improves until you read the newest reviews rather than the top-rated ones. Look closely at count apps and half the frustration disappears once you check what the free tier gates before investing time.
Nothing about count changes the fact that the honest advice is to run a reverse image search on suspiciously polished photos, though I would want someone to check me on this. The reason which are currently the biggest dating apps keeps coming up is simple: most of the disappointment traces back to how quickly the inbox fills. Specifics about count welcome — vague reassurance less so.