Disadvantages
The Mobile version eliminates a significant amount of the challenge that is important for language learning, as compared to its Browser version.
Let me help you understand this through another example that could also reinforce the fact that mobile apps are so much more scaled-down versions, even in a premium subscription! Agreed, language learning apps must be lightweight, comprehensive, and designed to work with small screens and keyboards with extremely close keys, but reducing content is something that should be a strict no-no. Memrise for example – provides a limited selection of correct options, and this reduction makes the answers so much more obvious when taking the “fill in the blanks” questions quiz; versus its browser version that grills your knowledge with multiple choices where intuitive answers are just not possible.
Not so creditworthy feedback
Getting feedback on language learning apps is usually limited to whether or not the answer you provide is correct. While this is useful, it is not the type of feedback that language teachers and researchers prefer because it does not explain why the answer is correct or incorrect.
Apps undoubtedly offer a lot of vocabulary, but that’s about it!
The online language learning apps concentrate on vocabulary development and word learning through repetition, without being particular about grammar, phonetics, written text comprehension, and so on. This may be difficult to build if you only use apps to learn a foreign language. For example, a student learning Spanish through Duolingo has a large vocabulary but struggles to understand tricky texts that rely on cultural understanding or are more nuanced.
Engaging with the mobile app once a week to learn a language is a big disaster
The Foreign Service Institute (FSI) mentions the number of hours that English speakers would be required to get General Professional Proficiency to third level, on all the four parameters speaking, listening, reading and writing. Keeping our focus on the Spanish language today the FSI mentions a need for rigorous 575-600 hours or 23-24 weeks, that’s about 6-7 months to learn Spanish professionally with all the available resources and not just selectively with the mobile app giving at least 25 hours in a week to study. However, by interacting with the mobile app once a week it is impossible to spend 25 hours studying.

Language learning apps are simpler to use than their web or software counterparts.
Furthermore, the retribution for making a mistake or mispronouncing a word is almost non-existent. It may appear to be negative reinforcement, but isn’t the entire point of learning to encourage the learner to take the time to record the error in order to avoid it in the future? If nothing else, the learner could be encouraged and coaxed through various means and methods in the app to find the answer for himself rather than being handed it on a silver platter or allowing him to gloss over it! The best penalty in the mobile app is to add the word to a list of the “difficult words”, for a learner, which they will anyhow skip, treating it as a ‘visit later kind of topic’, that never happens! Apart from this, all the phrases you learn are shorter, and you get the impression that the app is guiding you through the process. It’s all such a concise, clocked, boxed training! Now given the fact that Spanish is quite a bit different in English and slightly tougher as well, how can we expect these apps to be teaching the Spanish that is required to get certifications?
Insufficient or no speaking practise.
With the exception of a few apps, the main issue with mobile apps is that they rarely provide any real speaking or practical listening experience. Those who have travelled or moved abroad know that, at the end of the day, this is what matters and that deducing from the context that Duo is trying to say “The boy loves the whipped cream and ponies” isn’t.
Apps lead a learner to become overconfident and forever dependent
Overuse of language learning apps will eventually become confident in your ability to guess a word, spell it, understand basic grammar, besides gifting, the learners an innately lazy quality to stop using other methods because mobile is so simple to access and use.
It is extremely easy to become distracted.
All suggestions, about the productivity tools, social media blockers, and a long list of do’s and don’ts, that can be handed over to a beginner, by the social media influencers, are nothing better than just a promotion gimmick. In all honesty none of these work. Thus, a learner struggles to steer free from Facebook, emails, chatting, messaging while studying on the app
and ends up forgetting what they were doing.
It’s fine to take breaks, but if you’re probably glued to your phone for the majority of the day, it’s much easier to lose focus and land on non-language apps, Instagram, Facebook or other social media apps, diverting your attention elsewhere, or simply losing track of time.
