Best app for identifying bird song?

[LakeFlyPie]

There seem to be quite a few
Any recommendations please (for UK)?

I really like Merlín Bird ID. You download the pack for the country you're in, and it will recommend the most likely birds for your location and season. The ID guide is the best I've used and has varied bird songs to choose from, plus the ability to record a song and identify it that way.

Following. Would like to know too!

I have used Bird Net, it's American but has coped with the British birdsong I've tried it with so far! It also correctly identified "homo sapiens" when DS tried to fool it by making bird noises