ZipGrade Game Changer Time Equitable Best of Class
This is the iPad or Android version of a Scantron machine. I know it is not a student response system. However, when students can take a test, and you can take a picture, and the tablet corrects it for you in real time. The app is available on all or most smartphones. This app will save you so much time. I am not sure why everyone does not use it.
https://itunes.apple.com/us/app/zipgrade-grade-tests-your/id635077270?mt=8&ign-mpt=uo%3D4
Google Play
https://play.google.com/store/apps/details?id=com.zipgradellc.android.zipgrade&hl=en
Website: https://www.zipgrade.com/
Quick Key Mobile Grading App
This app/service offers a lot. You can send quizzes to students electronically or grade paper quizzes with the app. The service also integrates with Google Suite. You can try the service/app for free. If you like what you see, then you can pay a modest fee per month.
Pricing: https://get.quickkeyapp.com/products-pricing/
https://itunes.apple.com/us/app/quick-key-mobile-grading-app/id686229501?mt=8
https://play.google.com/store/apps/details?id=com.kiteknology.quickkey&hl=en
https://vimeo.com/user36865119
Exam Reader
This app is similar to the old scantron machines. You take a picture of a paper with some of the bubbles filled in. The app grades the paper. The app is free to try and has in-app purchases if you want to use the app long term. The app has versions for the iPad, Android, and Windows.
https://itunes.apple.com/us/app/id1087908283
https://play.google.com/store/apps/details?id=com.bebyaz.examreader
https://www.microsoft.com/en-us/p/exam-reader/9nblggh4pp18?rtc=1&activetab=pivot:overviewtab