CourseVerdict

Preply 1-on-1 Tutoring vs Duolingo Max

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 1-on-1 Tutoring

3.9/ 5 · 42 opinions
26 positive7 neutral9 negative/ 42 total

Duolingo · Languages

Duolingo Max

2.9/ 5 · 38 opinions
9 positive12 neutral17 negative/ 38 total

Per-criterion

Content quality3.5 / 5

No curriculum — content is whatever the tutor brings. Preply's package model nudges teachers toward longer engagements and marginally more structured plans than italki's pay-per-lesson default, but variance is still large and the platform does not vet pedagogy.

Instructor / method4.2 / 5

Broad global tutor pool, strong supply in English-as-a-second-language and major European languages. Reviewers find tutors for less-common languages like Khmer at $10-15/hour. Vetting remains the student's job — most learners trial 2-4 tutors before settling.

Value for money3.6 / 5

Per-hour rates ($10-30) overlap with italki, but subscription-style packages and aggressive cancellation friction pull effective value down. Reviewers describe pricing that "always comes up higher, never lower" and packages that can expire on tutor reschedules.

Retention & motivation3.9 / 5

The subscription mechanic is the biggest contrast with italki — pre-paid weekly packages create real commitment that helps learners who would otherwise drift. The same mechanic frustrates anyone who changes tutors or pauses; works for steady users, against churning ones.

Real-world fluency4.4 / 5

Same speaking-and-correction engine as italki and the same outcomes — multiple Hacker News commenters credit weekly Preply tutors with breaking them out of Duolingo plateaus into actual conversation. The product is the tutor, and the tutor works.

Content quality3.0 / 5

Same Duolingo curriculum as Super with three AI bolt-ons — Explain My Answer, Roleplay, Video Call. AI explanations sometimes get grammar wrong and Roleplay topics are narrow, so the content lift over Super is real but modest.

Instructor / method3.1 / 5

The "instructor" is GPT-4 behind a Duolingo wrapper. It can explain basic grammar and hold a short roleplay, but multiple reviewers report it makes mistakes and is much narrower than ChatGPT/Claude direct, and far below an italki tutor on actual correction quality.

Value for money2.4 / 5

Roughly $30/month — more than 2× Super's $13. Reviewers flag that ChatGPT Plus/Claude Pro ($20) cover the AI capability with no topic limits, and a weekly italki lesson ($10-15) buys real human correction. Weakest dimension by a wide margin.

Retention & motivation3.4 / 5

Inherits Duolingo's streak engine, leaderboards and daily quests — the strongest retention layer in the category. Max-specific features add little; reviewers describe the AI call as a "try one free, then upgrade" upsell rather than a habit driver.

Real-world fluency2.8 / 5

Roleplay forces some output production, structurally better than Duolingo's tap-the-tile drill, but topic scope is narrow and it does not replicate real-conversation unpredictability. Better than Super at speaking, still well below a live tutor.

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