QR code scanner web app using device's camera

Need to build a web app for a check-in and check-out system. Use the device's built-in camera, Android or IOS, to scan QR codes and automatically store a timestamp in a MySQL database based on the scanned code.

1. This QR Scanner must be able to use in both Androids and IOS Mobile devices.

2. Must be able to run the scripts in HTTPS and HTTP


1. Page 1 (e.g [login to view URL]) - A form (Get method) to choose 'Choose a course ' (populated from the database), "Check-in" or "check-out" and submit. After submit bring new page.

2. Page 2 (e.g. [login to view URL]) - auto start QR Code Scanner using built-in mobile camera.

3. The scanner will scan the QR Code, save the data to MySQL, flash big green/red box for allow/denied, and ready for new scan.

Skills: PHP, Android, MySQL, Mobile App Development, Software Architecture

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About the Employer:
( 0 reviews ) San Diego, United States

Project ID: #20798634

21 freelancers are bidding on average $216 for this job


Hi there, After the QR code is scanned, how would the system know to allow / deny, what's the algorithm (with examples please)? I have a 99% project completion rate and a 4.99 reputation (out of max 5.0 from more tha More

$220 USD in 7 days
(977 Reviews)

I am an expert Android and iOS developer, highly skilled in native app and web development with over 10 years experience. I have built several apps with similar QR code features and I can help build a stable and funct More

$250 USD in 7 days
(191 Reviews)

Hi sir, I read your project description .I can do your project & able to run successfully. I have 8+ years experience for website & mobile application development also done over 400+ project by a good team members . More

$140 USD in 7 days
(158 Reviews)

Greetings sir, I have read your project details and i will develop the web app that will scan the qr code using mobile camera and save the data on mysql database. more on chat. Sir, i can deliver this project soo More

$200 USD in 1 day
(183 Reviews)

Hi Will the scanner will be inbuilt the web app or user can use default QR scanner too. If they use external QR scanner...they we cannot save the data into mysql as we cannot access external QR code scanner. Please m More

$100 USD in 7 days
(45 Reviews)

Hello, As I take this project, I will do my best! I have read your job description carefully and very interesting in your project now. I'm a seasoned iOS/Android expert with proven app development experiences in Swi More

$140 USD in 30 days
(26 Reviews)

The dear hiring manager, I have read your description and i can start immediately I'm very interested in your job As you can see my profile, I am a expert of web development My Profile : More

$250 USD in 6 days
(57 Reviews)

Hello How are you? I am a full stack Native Android and iOS app developer based on kotlin and Swift and Objective-C Your project is adaptable for me. I am very interesting about your project I have rich experience ov More

$200 USD in 7 days
(66 Reviews)

Dear Client. Greetings. I am a full-stack web and mobile app developer. I have rich experience about Qrcode. Reading your requirements, I have understood what you want. Please ping me, I can finish it soon. Before, I h More

$140 USD in 7 days
(28 Reviews)

will be great project to work on trust me,i will be glad to work on such project and i wi can assure you best delivery if awarded sir

$30 USD in 1 day
(26 Reviews)

$$$ Good day. $$$ Hi. I understand correctly your requirement. I am a Mobile developer you are looking for. I am having 8+ years of experience in Mobile app development. Also, I have expertise in Xcode(swift), API, More

$250 USD in 3 days
(9 Reviews)

Hi I am iOS and Android APPs expert having 7+ years experience using objective-c and swift programming language and ready to build a web app for a check-in and check-out system. Please share more details. Ki More

$277 USD in 10 days
(49 Reviews)

I completed QR code APP a few days ago. You can see my profile about that. I'd like to discuss via private chat. Thanks.

$200 USD in 7 days
(15 Reviews)

How are you? I'm a professional full stack developer. I really would like to work for you. I have rich development experience and have developed many apps. If you hire me, I will do my best for you. I already read your More

$1000 USD in 7 days
(11 Reviews)

Hello, I am expert android developer and designer. * I have done many apps before and i have a good experience in developing android apps. * I have read your project description and I am ready to complete your job in More

$77 USD in 1 day
(21 Reviews)

Hi, I am an expert Swift programmer and I have been using Swift since version 1. My main focus is Swift development focusing on various platforms Swift and iOT s ( Drones, home automation etc) along with python and C More

$30 USD in 3 days
(3 Reviews)

Dear client. How are you? I have reviewed your inviting carefully and hope to work with you. I'm an expert in QR code scanning , android, iOS and MySql Database. I have + 11 years good experiences in this area. I can More

$249 USD in 3 days
(10 Reviews)

Hi: I'm senior IOS app developer who have good skill for 8 years. [login to view URL] [login to view URL] https://apps. More

$140 USD in 7 days
(5 Reviews)

Hi dear client, I have Done same requirements in past and my programme has android and iOS platforms along with Web app. here is my job [login to view URL] [login to view URL] More

$250 USD in 25 days
(5 Reviews)

Hi there, Hope you are doing well. I have read your requirements about your project very deeply and I believe that I can complete your project within your budget and time. A, Desired website and application [ IOS and More

$200 USD in 12 days
(6 Reviews)