Learn iPhone on Lingvist

Lingvist is a good app for anyone who is busy but wants to quickly learn a new language. The app focuses on around 5000 words in each language to help you learn at an accelerated pace, the theory behind it is that these words are all that you need. Since its inception in 2014, it has been downloaded by over 6 million people.
Price: $9.99/month
Methods: Flashcards
Devices: Android, iPad, iPhone, Web
Total languages offered: 9
Other languages:

Learn iPhone on Speakly

Speakly is a language learning app that uses your phone's microphone to translate words you hear in real life. It also lets you store translations, search through them by voice searches, learn new words and review past ones. For each word it gives an example sentence that includes the word learned, which makes for good practice in both reading comprehension and speaking.
Price: $10.99/month
Methods: Flashcards, Unique
Devices: Android, iPad, iPhone, Web
Total languages offered: 9
Other languages:

Learn iPhone on Triplingo

Looking to learn the basics of a language and not the whole thing? As its name suggests, Triplingo is designed to help you learn the essentials of the language that is spoken in the place you're visiting. Triplingo is a good companion for any traveler, whether you're planning a quick weekend getaway or spending months living in a foreign country. You'll be able to learn useful phrases and expressions for every occasion, from ordering food to asking for directions. The methods of teaching include interactive flashcards and pronunciation guide. The app also comes with a built-in voice translator, which can actually come in pretty handy in emergency situation - whether you're interested in learning the language or not.
Price: Free (with premium plan)
Devices: iPad, iPhone
Total languages offered: 13
Other languages:

Learn iPhone on Awabe

Awabe is a flashcard language learning app on Android. It focuses on vocabulary, offering as much as 4,000 words for each language.
Price: Free (with premium plan)
Methods: Flashcards
Devices: Android, iPad, iPhone
Total languages offered: 29
Other languages:

Learn iPhone on Qlango

Qlango is a language learning app that promises to help you learn a new language in 5-minute increments, as each lesson lasts that long. It offers quick and easy lessons, along with interactive games, flashcards, and chatbots to help you learn vocabulary and grammar.
Price: Free (with premium plan)
Methods: Online Courses
Devices: Android, iPhone
Total languages offered: 41
Other languages:

Learn iPhone on LingQ

LingQ is a language learning app that uses the same logic for learning a new language as learning your native tongue: using content you already like. They have books, news, podcasts, sports coverage, politics, culture, and food to name a few.
Price: Free (with premium plan)
Methods: Articles, Books, News, Online Courses, Podcasts, songs, Sports
Devices: Android, iPad, iPhone, Web
Total languages offered: 26
Other languages:

Learn iPhone on HelloTalk

HelloTalk is a language learning app that allows users to communicate with others in different languages. It has both a free and premium version, and offers a variety of features to help users learn new languages.
Price: Free (with premium plan)
Methods: Tandem partners
Devices: Android, iPhone, Web
Total languages offered: 160
Other languages:

Learn iPhone on LuvLingua

LuvLingua is a language learning app that uses an interface that is more geared towards a younger audience. It's focused on vocabulary learning and listening skills. The basic app is free but the more advanced ones are paid.
Price: Free (with premium plan)
Methods: Games, Quizzes
Devices: Android, iPad, iPhone, Web
Total languages offered: 13
Other languages:

Learn iPhone on Brainscape

Brainscape is a customizable flashcard language learning app where you can pick the language you want to learn and then create your own personalized learning path. It prides itself on being "the world's smartest flashcard app".
Price: $9.99/month
Methods: Flashcards
Devices: Android, iPhone
Total languages offered: 103
Other languages:

Learn iPhone on AccelaStudy Essential Apps

AccelaStudy is a series of apps that allows you to learn new languages. It's focused on flashcards and space repitition, with each language having its own separate app (for example "Accelastudy Learn Spanish")
Price: $9.99/month
Methods: Flashcards
Devices: iPad, iPhone
Total languages offered: 6
Other languages: