I've just released an Android app called vocab++, which uses images (each one of which is curated by hand) to assist users in boosting their vocabulary. It's built on the principle of visual association (remember when we were kids, and our books were filled with illustrations to help us learn new words?).
The app is designed for those preparing for standardized tests, though others can benefit from it, too. I'd love to hear your thoughts on it.
You can find it in the Google Play Store! https://play.google.com/store/apps/d...sculture.vocab