4Ask is a smart English AI Assistant developed by PRESB TECHNOLOGY AND SOLUTION JOINT STOCK COMPANY. It is a free program available for iPhone users in the Education & Reference category.

With 4Ask, users can take a photo or scan their English exercises and tests, and the AI Assistant will solve them for them. It also has a grammar checking feature that can identify and fix any mistakes users make.

One of the standout features of 4Ask is its ability to write English essays on any topic. Users can simply provide the topic, and the AI Assistant will generate an essay for them.

Additionally, 4Ask can answer any questions users have about English, including grammar, vocabulary, and communication. It can also help users improve their writing skills for the IELTS writing test.

Lastly, 4Ask offers a translation feature that allows users to translate English into other languages. This can be useful for language learners or anyone needing quick translations.

Overall, 4Ask is a versatile English AI Assistant that offers a range of features to help users with their English studies and writing tasks.