If you are someone who doesn’t find time to take up any courses or classes, or have taken up classes but need some more practice, German learning apps can be of great help. They make the German language learning journey easier.
Here are the popular German learning apps on Android:
Index
Learn German. Speak German.
Price: Paid App. They provide a free 7 day trial.
Languages: German to English and English to German. Other languages are available too.
Levels: Beginner, Intermediate and Advanced.
Content: Daily lessons, chat-bot and vocabulary.
Usage: Need to sign up for more features.

Learn German Offline
Price: Free app. Contains ads.
Languages: English to German
Levels: Beginner
Content: Basic vocabulary and phrases related to topics such as greetings, general conversations, numbers, time and date etc. They have English to German voice translations.
Usage: No need to sign up.

Learn German For Beginners
Price: Free app. Contains ads.
Languages: English to German
Levels: Beginner
Content: Includes more than 25 classes of basics. From alphabets, numbers, climate, food and internet terms, they have a vast variety of topics and interactive quizzes and more. It is more elaborate compared to the two previously mentioned apps.
Usage: No need to sign up.

DW Learn German – A1, A2, B1 and placement test
Price: Free app.
Languages: English to German
Levels: Beginner to Intermediate.
Content: Includes a placement test to decide the level you are at. Includes content in the form of videos and conversations. The videos are in German language with German subtitles. Multiple topics are covered in the videos.
Usage: Gives an option to login.

Duolingo: Learn Languages Free
Price: Free app. Contains ads.
Languages: English to German. Includes other languages too.
Levels: Beginner to Intermediate.
Content: Lets you pick up goals for a day like casual (5 minutes a day), regular (10 minutes a day), serious (15 minutes a day) and insane (20 minutes a day). The goals can be changed later as well. The app asks you the reason why you are learning the language such as travel, career, brain training, culture, school or other.
It also asks if you previously know the language or if you are just starting out. After selecting the options, you are presented with questions and quizzes to complete, where the right answers are immediately displayed.
Usage: Gives an option to login.

Learn German Vocabulary Free
Price: Free app.
Languages: English to German
Levels: Beginner to Advanced
Content: Vocabulary divided into German exam levels A1 to C1. Includes a few topics divided by theme too. Once you select what you want to learn, the content is downloaded and then you can start. Once downloaded, the flashcards related to the topic appear. Picture on top, then the word in English and then the translation in German.
The app consists a lot of other options like listening to German Radio, Sleep Learning timer, read the news in German and more.
Usage: Compulsory login with email or Google or Facebook.

Babbel German
Price: Free for a limited access. Paid for advanced features.
Languages: English to German.
Levels: Beginner to Intermediate.
Content: Starts with a survey asking for your age and how you came across the app on the first usage. The next one is another question depending on the choice you selected. It also asks for your motivation to learn German such as personal interest, travel, friends or work etc. which you can select.
The main content appears after following the above steps and is very limited in the free version. It is in the form of pictures and English phrases or words followed by German translations also in speech.
Usage: Compulsory registration via email or Google or Facebook.

Learn Languages with Memrise
Price: Paid.
Languages: English to German. Offers multiple languages too.
Levels: Beginner to Advanced.
Content: Limited content for the free version available. Starts with registration and selecting your level. You need a bit of prior knowledge to use the app in our opinion. The free content includes a format of quizzes and answers to match in the form of text and voice.
Usage: Compulsory registration is required via email or Google or Facebook.

Rosetta Stone: Learn Languages
Price: Paid.
Languages: English to German. Multiple language options available.
Levels: Basic to Intermediate.
Content: Pronunciation, vocabulary and grammar lessons unlocked on registration. Limited access in the free version.
Usage: Compulsory account and profile creation.

Drops: Learn German. Speak German.
Price: Paid. Limited access in the free version.
Languages: English to German. Other languages available too.
Levels: Basic.
Content: Starts after language selection. No registration is needed here, but only limited content is available in the free version.
Usage: No registration required.

If you enjoyed reading this article, also check out 10 Useful resources to learn German.
Excellent post. Very useful
Thanks and good luck.