This app lets you have control of the attendances to an event using QR codes, so you can register the hour of check-in and check-out, and also tells the amount of time that each person was present in the event.

Features:
- Uses text content QR codes with the name of the person for simplicity
- You can export and share the attendance list as an excel (.csv) file
- Auto detect the arrival or departure, and continuous scanning option
- No limits to the amount of QR codes that can be scanned

Exported excel files can be saved inside the device using some of the file manager apps availables in the PlayStore like the followings: https://play.google.com/store/apps/details?id=com.cxinventor.file.explorer
https://play.google.com/store/apps/details?id=com.lonelycatgames.Xplore

Observation: you must have installed a Barcode Scanner in order to use the QR scanner.

Instructions: To create QR codes, go to any of the free QR code generators that exist on the internet, select text content, and then generate QR codes with the name of each person you want to register. After that, deliver the QR codes to each person, so they can show you their code when they arrive or leave.