Learn Spanish on Rosetta Stone

Rosetta Stone is a language-learning app that started in the 90s for auditory learners.
Price: Free
Devices: Android, Apple Watch, iPad, iPhone, and Web

Learn Spanish on 50 Languages

50 Languages is a mobile app that offers users a variety of features that make learning a language relatively easy. From pronunciation guides to verb conjugations, 50 Languages has a good set up to deepen your knowledge of your desired language. The app is free to download but you have to pay to remove ads.
Price: Free
Devices: Android, iPad, iPhone, and Web

Learn Spanish on Fluenz

Fluenz is a language learning app that uses a video-based approach to teach users. Fluenz helps users build fluency (not pun intended) through various exercises which encourage retention of new vocabulary and grammar points.
Price: $408/month
Devices: Android, and iPhone

Learn Spanish on Clozemaster

Summary: Clozemaster is a Web & iOS app that helps language learners practice and learn new words using fill-in-the-blank sentences. It's another gamified app like Duolingo.
Price: Free
Devices: Android, iPad, iPhone, and Web

Learn Spanish 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
Devices: Android, iPad, and iPhone

Learn Spanish on Mosalingua

Mosalingua is a language learning system that prides itself in having 11 million learners. It works by using flashcards to teach you new words and phrases. The app also includes a pronunciation guide, grammar tips, and a dictionary.
Price: Free
Devices:

Learn Spanish 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
Devices: Android, iPad, iPhone, and Web

Learn Spanish on Bravolol

Bravolol is a series of apps like "Learn French", "Learn Japanese", or "Learn Italian" that offer a basic language learning experience.
Price: depends
Devices: Android, iPad, and iPhone

Learn Spanish on Udemy

You can use Udemy to learn a new language. Courses such as "Learn Dutch Beginner" and "French Language Learning: Language and Culture for Absolute Beginners," will help kickstart you in those two languages.
Price: Free
Devices: Web