I have found that I recognise characters more easily when they appear in different words or situations, for example, verb structures: l pick 我摘, I eat 我吃, I cook 我煮. So recognising “我” is easier than recognising: 摘, 吃, or 煮. We then need phrases like: eat with the spoon 用勺子吃, pick fruit 摘水果, and cook pumpkin 煮南瓜.
This is especially important for character based languages like Chinese, Japanese and Korean. The app needs to help us identify associations through variation.