Apps for learning Japanese tend to focus on a certain aspect of the language, such as learning kana or learning vocabulary. This is fine as a supplement to classes or following a textbook, but not so much when self-studying. There are few apps that offer a more comprehensive approach from the very beginning, and Human Japanese is one of them. Whilst I wouldn’t suggest solely relying on one resource, Human Japanese is free at the earlier levels (called Human Japanese Lite) and is a pretty good alternative to one of the popular textbooks.
The app starts from the very beginning, starting off by familiarizing you with the sounds of Japanese and how they differ from English. The app then takes you through hiragana before moving on to basic Japanese grammar and vocabulary across 44 chapters. You must complete each chapter before moving on with no option to skip (although this can be changed in the settings). At the end of each chapter, there is a quiz to test your learning. I would say that the app does a good job of covering reading, writing, speaking and listening equally.
One of the main advantages of using an app over a textbook when self-studying is having audio integrated into the app; Human Japanese takes advantage of this by having lots of example sentences and audio.
I think this is a good choice for those who have had no prior experience learning Japanese (or any language for that matter) as it takes you through the basics of Japanese whilst imparting a lot of relevant and useful information along the way. This does mean that the app is text heavy, which could well be intimidating and it may not feel like you are making progress as quickly. Even so, I highly recommend this for newcomers to Japanese who are intending to study the language in some depth. There are a lot of things explained in the earlier chapters that I wish I had learned from the very beginning! One aspect to Human Japanese that I like is that once downloaded the app can be run entirely offline, which reduces the temptation to go online and get distracted.
The lite version gives you access to the first 8 chapters or so – if you like these chapters, you can purchase the full app for £9.99. The app is available on Android, Apple Store, Windows Phone, PC & Mac. I suggest taking advantage of the ‘Sneak Peek’ feature and look at the previews of each chapter (especially if you have already started studying Japanese).
There is also a Human Japanese Intermediate which may be suitable if you have already studied the basics – the official website has chapter lists to give you an idea of which app may be the best for you. The intermediate version of the app probably finishes covering the main aspects of grammar for JLPT N5 and a bit of JLPT N4, but also has chapters on things like sentence ending particles -の/ んです, よ, な which are often left to a later stage of Japanese learning.