1.Duolingo

Duolingo is the world's most popular English language learning app today and highly recommended app for English beginners. With over 200 million registered users, learning with this free English learning app is fun and addictive. 

Duolingo lessons are made up of a range of activities and it adapts to the users learning style. The gamified approach of the app helps you learn English quickly by just spending twenty minutes a day. Duolingo exercises are tailored to help the users learn and review vocabulary effectively. It helps you to master new words, phrases and grammar with game-like lessons. 

The app helps you to stay motivated with rewards for completing the lessons. Duolingo tracks your daily progress and you get a progress report at the end of each lesson.

Duolingo Plus users can always save lessons for offline viewing on the Duolingo mobile app. When you’re offline, the progress tracking features will be turned off.

2.Learn languages busuu

Busuu is one of the best English language apps available today and highly recommended for learning English at a beginner level. The app is designed by the linguists and it combines human interaction and AI-powered teaching to help you learn a language faster.  

The app provides courses in 12 languages on its mobile app to more than 90 million learners worldwide. Busuu's lessons cover the typical reading, writing, speaking, spelling, and generating language you expect in any language-learning course. 

With Busuu, you can talk with native English speakers to practice your English speaking. You can also provide feedback to people learning English languages or get feedback from more advanced English learners.

Busuu Offline mode allows you to download your lessons to enjoy wherever and whenever you want, even without a connection. 

You can visually track your progress through the Busuu course by seeing your percentage completion score increase and observing the colour of each unit you complete changing. In addition we send you a weekly progress report which tells you what you have achieved in the past seven days.

3.Improve English: Word games

Improve English is a popular app for learning English. For those who are learning English as an additional language, Improve English: Word Games bite-sized lessons will help you to improve English skills. It is one of the best English vocabulary builder apps to learn new words on the go. The platform works on scientific algorithms which help you to learn and improve English in an effective way.

The interesting word games will help you with learning new words, grammar, spellings and phrasal verbs. The app is designed for those who have established a basic grasp of English and wants to improve their vocabulary, reading, speaking and writing skills. 

The personalized content will help you achieve a good score in entrance exams like CAT, GRE, GMAT, IELTS, TOEFL, etc. 

The practice games that accompany the courses are populated with excellent content. These courses use a card-style format that presents the word or phrase and its definition to the user.  Each flashcard also has a seperate section for users to add their notes.  When the learner feels that the word is secure, they can select 'got it' and take it out of their learning pack.

4.Vocab victor English word game

Vocab Victor is one of the best learning English app for mobile devices. You learn by playing a series of integrated word games. Victor offers a variety of games to teach different types of word knowledge, customized to your learning level. The app draws on a database of thousands of words, and millions of relationships between words, to generate fresh, new games every time you play.

By playing regularly, you can learn thousands of new words, without studying boring word lists, or flash cards. The app draws on a database of over 15,000 words, and over 130 million relationships between words, to generate fresh, new games every time you play. It’s currently available for free on Apple and Android devices. It’s better than flashcards, and much more fun than other language apps.

5.Sentence master pro

Sentence Master Pro is one of the more interesting English learning apps. It is an interactive, English learning app that progressively guides the user through language study in real-world, immersive contexts.

This game is fast-paced, but allows users some time to think. It also encourages peer learning, as users will focus on building sentences and matching words together to form a sentence. To play the game, user is given a number of words to unscramble and form into a full sentence within a time limit with the added challenge of losing time when an incorrect answer is chosen. The app is split into 5 different game levels ranging from Beginner through to Competent, Professional and Expert.

Beginners can learn new English vocabulary in context or review using their SRS (Spaced Repetition System). 

One of the most appealing aspects of the app is the fact that it can used by a number of different people with different abilities in the English language. For instance, it works really well as an app for younger children who already have a certain level of proficiency in reading and writing to improve their understanding, but older users can also access the app on a different level especially if they have English as an additional language and are wanting to improve their proficiency too.

According to educationalappstore.com