Comparison Table

Pricing Breakdown

Duolingo is free to use. The free version includes the complete English course from beginner to intermediate level. You get ads between lessons and a heart system that limits mistakes. Super Duolingo costs about $7 per month and removes ads, gives unlimited hearts, and adds personalised review sessions. Duolingo Max, which adds AI-powered features like roleplay conversations, costs about $14 per month.

Busuu Premium costs $13.99 per month, with discounts for longer plans. A 12-month subscription brings the cost down to about $8.99 per month. Busuu Premium Plus costs about $16.99 per month and adds the official McGraw-Hill education certificate. There is a free version but it offers limited lessons and exercises.

Duolingo is the clear winner for budget-conscious learners, especially if you stick with the free version. Busuu costs more but offers a more structured, traditional learning experience with clearer grammar instruction.

Teaching Approach

Duolingo uses gamification to keep you engaged. You earn XP points, maintain streaks, climb leaderboards, and unlock achievements. Lessons are short and bite-sized, typically taking 5 to 10 minutes each. The app teaches vocabulary and grammar through pattern recognition, translation exercises, and repetition. The approach works well for building daily learning habits, but the gamification can sometimes feel more like a game than serious study.

Busuu takes a more traditional approach. Lessons follow a clear structure: vocabulary introduction, grammar explanation, practice exercises, and a speaking or writing task. The courses are aligned to the CEFR framework, so you know exactly what level you are working towards. Each unit builds on the previous one, creating a logical learning progression that feels closer to a classroom course.

Grammar and Vocabulary

Busuu has stronger grammar instruction. Each grammar point comes with a clear explanation in text, followed by targeted exercises. You learn the rules first, then practise them. This works well for learners who want to understand why a sentence is formed a certain way before using it.

Duolingo teaches grammar implicitly. You encounter sentence patterns and figure out the rules through trial and error. Some learners love this discovery-based approach. Others find it confusing, especially with more complex grammar like conditionals or reported speech. The grammar guide notes within each lesson help, but they are not as thorough as Busuu's dedicated sections.

For vocabulary, both apps use spaced repetition to help you remember words long-term. Duolingo presents vocabulary in themed lessons with lots of repetition across different exercise types. Busuu organises vocabulary into themed word lists with images, example sentences, and audio from native speakers. Both are effective, but Busuu's presentation is clearer and more structured.

Speaking and Pronunciation

Duolingo uses AI voice recognition for pronunciation practice. You speak into your microphone and the app checks if you said the word or phrase correctly. This is useful for basic pronunciation but limited. The AI can tell if you said the right word but cannot give feedback on accent, intonation, or natural speech patterns.

Busuu offers speaking exercises where you record yourself responding to a prompt. These recordings are submitted to the Busuu community for feedback from native speakers. You get human feedback on your pronunciation and naturalness, which is more valuable than AI scoring. However, you have to wait for feedback, and the quality varies depending on who responds.

Neither app offers live conversation practice. For speaking fluency and real-time correction, you would need live tutoring on a platform like Cambly, Preply, or iTalki.

Curriculum and Course Structure

Duolingo organises its English course into units and sections, each covering specific topics and grammar points. The course starts from absolute basics (alphabet, greetings) and progresses to complex topics like business English and idiomatic expressions. The path is linear but you can skip ahead by testing out of units you already know. Duolingo's English course is one of the most developed on the platform, covering roughly A1 to B1 levels with some B2 content.

Busuu's curriculum is explicitly aligned to the CEFR framework, from A1 (beginner) to B2 (upper intermediate). Each level has a clear set of learning objectives. The structure mirrors a traditional language course: vocabulary, grammar, reading comprehension, listening, speaking, and writing. Busuu also offers a placement test so you can start at the right level without repeating content you already know.

Busuu wins on course structure. If you want a clear sense of progress and know exactly what level you are working towards, Busuu delivers. Duolingo's path works well for casual learning but can feel scattered if you prefer systematic progression.

Reading, Writing, and Listening

Duolingo covers reading and listening through exercise types like sentence translation, listening comprehension, and story reading. The stories feature short dialogues with comprehension questions. Listening practice uses native speaker audio at varying speeds. Writing is limited to typing exercises and translation tasks.

Busuu integrates all four skills into every lesson. Reading passages come with comprehension questions. Listening exercises use native speaker audio. Writing tasks ask you to compose sentences or short paragraphs, which community members review. This broader skills coverage gives Busuu an edge for learners who want balanced development across reading, writing, listening, and speaking.

Motivation and Engagement

Duolingo is the undisputed champion of learner motivation. The streak system, XP leagues, achievement badges, and friendly mascot (Duo the owl) create a powerful habit loop. Many users maintain 100, 200, or even 500+ day streaks. The competition element, where you rise through leagues by earning XP, keeps people coming back. For building a daily learning habit, no app does it better.

Busuu takes a quieter approach to motivation. There are streaks and progress milestones, but they lack the addictive quality of Duolingo's system. The motivation comes more from seeing your level progress and receiving feedback from the community. Busuu also offers official McGraw-Hill certificates at the end of each level, which can be a strong motivator if you want recognised proof of your learning.

Who Should Choose Duolingo

• You want a completely free app with a full course
• You need strong motivation systems to build a daily habit
• You enjoy gamification, streaks, and friendly competition
• You want short, bite-sized lessons that fit into a busy schedule
• You are a beginner starting from scratch

Who Should Choose Busuu

• You prefer structured, classroom-style learning
• You want clear grammar explanations, not just pattern recognition
• You value community feedback on your speaking and writing
• You want courses aligned to the CEFR framework with clear levels
• You are willing to pay for a more traditional learning experience

Frequently Asked Questions

Final Verdict

Duolingo and Busuu are both excellent apps, but they serve different learning styles. Duolingo is the best free option for building a daily learning habit through gamification and short lessons. Busuu offers a more complete, structured learning experience with clear grammar explanations, CEFR-aligned courses, and human feedback on your speaking and writing.

If you can only choose one, pick Duolingo if you are on a tight budget or need strong motivation to stay consistent. Pick Busuu if you are willing to pay for a more traditional, structured approach with deeper grammar coverage. The most effective strategy is to use Duolingo for daily warm-up practice and Busuu for more focused, structured study sessions.