CourseVerdict

Preply French Tutoring vs Duolingo Korean Course

Same Bayesian formula, same rubric — so the difference in scores reflects the difference in the courses, not the difference in how we evaluated them.

Preply · Languages

Preply French Tutoring

4.0/ 5 · 26 opinions
16 positive6 neutral4 negative/ 26 total

Duolingo · Languages

Duolingo Korean Course

2.8/ 5 · 25 opinions
7 positive7 neutral11 negative/ 25 total

Per-criterion

Content quality3.8 / 5

Preply is a marketplace, not a curriculum — "Preply doesn't use standardized curricula or textbooks", as one reviewer puts it, so content is whatever the tutor builds after your trial. For French specifically the platform layers on useful scaffolding: a placement test, a record-a-message-to-a-tutor feature, and a library of vocabulary exercises, tests and quizzes. The ceiling is high (DELF/DALF prep, pronunciation and gender-agreement drills, conversational fluency), but the floor depends entirely on directing your own sessions.

Instructor / method4.2 / 5

The French tutor pool is enormous and well-rated — beginner French tutors average 4.93/5 across 65,000+ verified reviews on Preply's own listing. A well-chosen native tutor giving real-time feedback on pronunciation and sentence structure is repeatedly named the platform's strongest feature. The catch is vetting: "the quality of lessons can vary widely because some tutors may not have formal teaching qualifications", so screening via trial lessons falls on the learner.

Value for money3.7 / 5

French lessons span roughly $5-40/hr (averaging $10-15), one of the cheaper ways to get genuine 1-on-1 speaking time. Value is dented by the commission and pricing structure: tutors are unpaid for the trial, Preply takes 100% commission on a new student's first lesson then 18-33% after, and several learners report prices "start to increase after a few sessions". Strong math for committed weekly learners; weaker for casual ones.

Retention & motivation3.9 / 5

"Project" here means the lesson and learning experience itself. Learners consistently praise the personalised, goal-driven format and the convenience of jumping into a video call from a phone. The French placement test and practice tools give the experience more shape than a pure pay-as-you-go board. Friction comes from the classroom app — Reddit users in 2026 report chat glitches and limited mobile capabilities — and from booking rigidity.

Real-world fluency4.3 / 5

This is Preply French's clearest strength. Live conversation with a native speaker, immediate correction of pronunciation, gender agreement and idiom, and lessons tailored to a job interview or travel goal translate directly into usable speaking ability. Preply's 2025 study claims learners taking 24+ lessons over 12 weeks progress 3x faster than typical timelines; even discounting the marketing, the speaking-first format is what self-study apps cannot replicate.

Content quality2.7 / 5

The Hangul onboarding is the course's strongest asset — letters are introduced gradually inside real words rather than as a disconnected chart, and most reviewers report reading basic Korean within one to two weeks. Beyond that, the Korean tree is smaller than Duolingo's flagship European courses, running to roughly 65 skills across three checkpoints and topping out around A2. Particles, verb conjugation, and the honorific system that governs almost every real Korean interaction are presented as patterns to absorb rather than concepts to understand. Several reviewers also note nonsensical or impractical sentences that would never appear in real conversation.

Instructor / method2.6 / 5

There is no instructor — the method is implicit pattern-matching. For a language with subject-object-verb word order, grammatical particles, and multiple politeness levels, the hands-off approach bites significantly harder than it does in Spanish or French. Reviewers consistently note that speech levels like formal-polite and polite appear at random without any guidance on which to use or why. The robotic, computer-generated audio is also repeatedly flagged as unnatural and inadequate for teaching the subtle positional pronunciation shifts Korean requires.

Value for money3.8 / 5

The entire Korean course is free, which is its clearest and most defensible strength — zero-cost Hangul exposure and basic vocabulary with no upfront commitment. The free tier is heavily ad-interrupted, which several Korean learners called frustrating, and the heart system can block progress. Super Duolingo at roughly $7–13 per month removes ads and adds unlimited hearts but does not fill the grammar or honorific gaps, so reviewers agree the value lives almost entirely in the free tier. For a beginner who is testing whether Korean is for them, the price-to-content ratio at zero is still favourable.

Support2.6 / 5

Duolingo's support is email-only and community-forum-led with no live assistance. Korean has a smaller learner base than Spanish or French, which means fewer third-party explainers and a thinner community to fall back on when the in-app notes are thin. Billing issues, streak-recovery requests, and account problems are the most common support pain points cited across review platforms. The in-app grammar notes that do exist are brief and incomplete, leaving learners to seek outside help for concepts the course never explains.

Real-world fluency2.3 / 5

This is the weakest area, and Korean exposes it sharply. Speech exercises use unreliable voice recognition that sometimes accepts incorrect pronunciation and other times rejects correct answers. There is no spontaneous production and no real conversation practice. The honorific system that governs almost every real Korean interaction is barely explained. Multiple reviewers describe studying Korean on Duolingo for a year and being unable to hold a basic conversation with a native speaker. The course builds receptive vocabulary and Hangul reading, not communicative ability.

Scoring methodology applies identically to every course on the site — see the formula.