Apart from using digital textbooks and curated reading resources, you can use your own reading material in Reading Progress. In order to determine the CEFR level of the chosen reading material, you can use Cathoven AI.
Cathoven AI is an intelligent teaching material design assistant specifically designed for language teachers. Using artificial intelligence, it can determine the difficulty of any text, analyse text characteristics, extract key teaching points according to the students’ level and many more. It comes with a stand-alone CEFR inspector, which analyses the CEFR difficulty of individual words.
Some of the features on Text Analyser:
Colour-codes words according to CEFR;
Estimates the overall CEFR difficulty of the text;
You will know the ins and outs of the vocabulary demand of the text so that you can control the difficulty by making necessary modifications at your will.