Apps like BTO Ringing & NRS Info

Here are some great alternatives to BTO Ringing & NRS Info by British Trust for Ornithology :
Birds of Europe Field Guide
Birds of Europe Field Guide
★4.0
Picture Bird - Bird Identifier
Picture Bird - Bird Identifier
★4.6
OrnitO
OrnitO
★4.6
BirdNET
BirdNET
★4.0
World of Wings
World of Wings
★4.9
Sparrow Sounds - Sparrow Calls
Sparrow Sounds - Sparrow Calls
★4.6
GoBird - Guide to Nearby Birds
GoBird - Guide to Nearby Birds
★4.1
Birds Sounds Ringtones
Birds Sounds Ringtones
★3.9
Bird Sound Identifier Bird ID
Bird Sound Identifier Bird ID
★4.2
Morcombe's Birds of Australia
Morcombe's Birds of Australia
★4.0
Smart Bird ID
Smart Bird ID
★4.3
Bird Song Id: Auto Recognition
Bird Song Id: Auto Recognition
★4.1
Bird Sounds - Nature Bird Call
Bird Sounds - Nature Bird Call
★4.1
eBird by Cornell Lab
eBird by Cornell Lab
★3.6
BirdID - Sound Bird Identifier
BirdID - Sound Bird Identifier
★3.7
Birdle - A Daily Guessing Game
Birdle - A Daily Guessing Game
★5.0