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
- Continuous scanning option
- No limits to the amount of QR codes that can be scanned
- Option to change font size
- Auto detection check-in or check-out
- Alarm to inform if the code is repeated with optional vibration
- You can scan QR codes and Barcodes

Totally offline your data will not be saved in any external server.
Free and without ads.

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.