ThaiChana - QR Scanner, developed by DeV-CNX, is a free utility and tool application available on Android. It allows users to scan QR codes to check-in or check-out of a place, which is part of the Thai Chana Project.

The app offers a hassle-free experience with its simple design and easy-to-use interface. Users can easily keep track of their check-ins and check-outs with the history feature. With the check-in/check-out button, users can easily perform the required action.

ThaiChana - QR Scanner can scan many types of barcodes and QR codes, making it a versatile scanning tool. The app also sends notification alerts, reminding users to check-out from a place they have checked-in to avoid forgetting.

It is worth mentioning that the app is free forever, with no ads, malware, or privacy issues. The app does not send any data back to the server, ensuring the user's privacy and security.

Overall, ThaiChana - QR Scanner is a reliable and efficient tool for checking-in and checking-out of places, and keeping track of your history.