Are Chatbots the future of learning languages? Comparing the Duolingo Chatbot with Mondly

Presented by Mondly. Download Mondly today on iOS and Android.

They say that learning a new language is best done through practice.  Practice is what builds your confidence to interact and eventually hold a conversation in a completely new language, however it takes time to become proficient enough to hold a conversation with a stranger.  You need to study material, memorize nouns and verbs, and develop the correct pronunciation.  BUT, what if we could save that time (and embarrassment) by learning a language through speaking and interacting with a chatbot?

With the arrival of chatbot technology, you can now carry on an interactive conversation in another language with a machine.  What this means is that an “AI engine” will ask you questions and accept a variety of responses.

Until now, only two language learning applications have developed a chatbot for learning languages:Duolingo and Mondly.

Last week, Duolingo, the most popular free language learning app, launched its first chatbot for learning languages – available in French, German and Spanish.   This was preceded in August by Mondly, the SECOND most downloaded free language learning app last month, which launched its own chatbot that included voice recognition and support for 33 languages.

Here’s a quick comparison of the chatbot features of both:

Mondly’s Chatbot

The Mondly Conversational Chatbot is available in 33 languages and comes with the free version of the app.  It’s available for iOS, Android and also on the web at

One of the biggest advantages that Mondly has over Duolingo is its speech recognition engine and its functionality in 33 different languages.  Mondly’s app uses speech recognition technology from Nuance enhanced with Mondly’s own proprietary object recognition engine that identifies objects in text to create adaptive visual responses.  It already understands millions of phrases and words in each language and it is improving every day.

The format of the Conversational Chatbot from Mondly is to provide fun and adaptive lessons that encourage users to practice the language they are learning in everyday scenarios, such as ordering in a restaurant.  The app recognizes almost anything you say (thanks to its speech recognition engine) and the bot will then reply back with an appropriate answer.  The object identification engine also recognizes many different words and responds with an emoticon that corresponds to the text (meaning – it understands what you’re saying) which provides a reinforcing feedback that builds helps build confidence.

Duolingo’s Chatbot

Last week, Duolingo launched their own version of chatbots available for iOS in French, German and Spanish:

The format of Duolingo’s chatbot is different than Mondly’s in that it has cute characters that interact with you in situations.  At the zoo, for example “Tina” the zookeeper ask for help with the animals asking things like: “What does the turtle eat?” Accompanied by a picture of a turtle eating a carrot.  But responses are limited to a text interface and they only allow specific answers.  If your input is not one of the accepted phrases, you can’t respond.

Typical of Duolingo, the interface is welcoming and the characters are cute.  The program recognizes when you go the extra mile in your responses by giving you extra “XP.”  For example: when the bot asks “How are you?”  If you respond with “I’m good.  Thank you.” The program recognizes the extra effort and rewards you with additional learning points.

The company has said there are plans to add speech recognition and voice conversations some time in the future, but for now it is limited to text interaction and only the 3 languages.

Download Duolingo from the Apple Store:

Comparison of Duolingo and Mondly

+/- Mondly Duolingo
Launched August 25th October 6
Languages 33 3
Platforms iPhone, iPad, Android, Web iPhone
Speech recognition YES NO, only text
AI YES, understands millions of phrases YES

 Comparing the Duolingo and Mondly chatbots on paper, Mondly clearly has an edge due to its speech recognition technology and the sheer number of languages it offers, but both have great interfaces with attractive layouts.  The cute characters and fun graphics from Duolingo make it fun to interact, while Mondly focuses more on the responses and object recognition.  For the true language learner – having the ability to practice actually speaking gives Mondly the advantage.

Notably, there is no English chatbot for Duolingo.  English is actually one of the most commonly learned languages in the world – outside of the US, UK, Canada and Australia, course.

Moving forward, both companies have expressed their desire to further develop this technology.  This is a fantastic and largely untapped application for chatbot technology that will certainly play a part in language learning application in years to come.

About Mondly

Launched in 2014, Mondly has quickly become the fastest growing language app on the App Store and Google Play, having already hit the 14,000,000 downloads mark. The app has a 4.7 star rating in the App Store and Google Play from more than 300,000 customer ratings.

In September of 2016, Mondly was the 2nd most downloaded language learning app in the world with 1.1 million downloads according to data from Sensortower.

Earlier this year, Mondly briefly became the number 1 most downloaded app in Arab countries, surpassing giants like Facebook, Instagram and YouTube, when they released language courses in Arabic:

The app was recognized by the Apple editorial team in Europe (UK, France, Germany, etc) and selected ‘Best new app’ in January 2016 and was also included it in the ‘Language Learning’ and ‘Visiting France’ collections in the App Store this year.

Mondly is developed by ATI Studios and is based out of Brasov, Transylvania, about 30 minutes from Dracula’s Castle in Romania.

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