italki Group Classes vs Super Duolingo
Same Bayesian formula, same rubric — so the difference in scores reflects the difference in the courses, not the difference in how we evaluated them.
italki · Languages
italki Group Classes
Duolingo · Languages
Super Duolingo
Per-criterion
Class topics span daily conversation to exam prep and debate — stronger than a blank-slate tutor session. But content quality varies by teacher and sessions repeat across a small topic roster. No graded curriculum arc linking one class to the next.
Group-class teachers on italki are professional teachers, not community tutors. Quality is generally consistent, but instructors must manage mixed-level groups, which compresses individual attention. Teacher profiles and reviews are browsable before booking.
At $7–12 for a one-hour group session the per-class price is hard to beat. Value flips if you compare per-minute of actual speaking time to a $10 community tutor — groups give you roughly 10–15 minutes live output per hour versus 60 on 1-on-1.
italki's platform support is adequate but not fast. Group-class refund policy requires cancellation 24 hours in advance. Live chat exists but resolution times for payment disputes are inconsistent per reviewer reports across the wider italki sample.
Speaking in front of peers under mild social pressure is genuinely useful output practice. Topic-focused classes (news, interview prep, travel) transfer directly. Ceiling is lower than 1-on-1 because correction is shared and spontaneous exchanges are shorter per learner.
Vocabulary coverage is broad and the spaced repetition loop is well-built, but reviewers consistently flag missing grammar explanations, slow new-vocab introduction and shallow per-topic depth — especially noticeable past the early units.
There is no instructor — the method is gamified drill-and-feedback. It works as a habit engine for vocabulary, but multiple reviewers note the lessons "don't explain much unless you dig into submenus" and the website tips are stronger than the in-app teaching.
The free tier is genuinely strong and is the right starting point for most learners. Super Duolingo at roughly $13/month or $84/year mainly buys ad removal, unlimited hearts and Practice Hub — useful for heavy daily users, marginal for casual ones.
The single strongest part of the product. Streaks, leaderboards, push notifications and daily quests genuinely keep people learning — multi-year streaks are common across the sample. The same gamification, though, has tipped toward attention manipulation for many long-time users.
Reviewers converge that Duolingo gets motivated learners to roughly A2, occasionally B1 reading, and rarely further on its own. Hundreds-of-hours users report being unable to hold a conversation without supplementing with tutors, comprehensible input or immersion.
Scoring methodology applies identically to every course on the site — see the formula.