Gabriel’s Seeds is a website that allows you to create personalized learning apps from your browser.
After a quick sign up, you can browse the apps in the directory or create your own. For ESL teachers there are a multitude of apps in different languages.
I started creating my app from one of the supplied layouts. Unfortunately, the creation of an app is confusing and required me to look at the manual for more help. In fact, I never was able to complete an app. This is unfortunate, because it looks like this could be a good start.
If you have success with this program, let me know!