SSC English quiz app contains SSC CGL, LDC, CPO, CHSL , SSC GD etc. all previous years English question and answer in many format.
SSC CGL English quiz app contains following section.
1. In grammar section:
Verb, tense, active voice, passive voice, question tag, subject verb agreement, conditional sentence, noun , pronoun, adjective, conjunction, article, preposition and adverb etc.
These topics contains all theory of grammar, a lots of very important MCQ questions and many previous years questions of asked in all SSC examination like SSC CGL, LDC, GD, CPO etc.
2. In vocabulary section :
Synonyms, antonyms, one word substitution, idioms and phrases, confused and misused word and important words.
These topics contain more than 1000 questions and answer in each topics. It also contain a lots of very important MCQ questions and many previous years questions of asked in all SSC examination like SSC CGL, LDC, GD, CPO etc.
3. Common error :- In this section given a lot of important common error English question and answer topics wise.
So it is very important for practices common error.
4. SSC Previous year English : In this section contain all previous year SSC English question and answer topics wise in form of quiz asked in following exam SSC CGL, LDC, GD, CPO etc.
I take question and answer from kiran English book.
5. English quiz section: In this section all imp. Questions given in form of quiz. This section is very important for practice SSC English question.
6. SSC previous year set: This section contains topics wise previous year question and answer.

SSC CGL English app contain all important question of following book:
1. Kiran English previous year
2. Arihant objective general English by S. P. bakshi
3. SSC English previous year written by Ajay kumar shingh
4. SSC English by Neetu singh

SSC CGL English app is the best English app available on play store. I suggest that please download CGL English quiz app and use it. It is best for your examination.