Duolingo is generally not recommended for serious Dutch learners beyond the absolute beginner stage (A1-A2) due to its slow progress, repetitive content, and lack of depth for real-world conversation. While it serves as a popular free introduction, its effectiveness significantly diminishes for intermediate and advanced learning.
Your experience with slow progress and feeling like time and money were wasted is a common sentiment among learners who use Duolingo for an extended period. Our independent reviews confirm that Duolingo Dutch is primarily effective for the first two to three months of learning, or up to an A2 level, but it falls short for anything beyond that. As noted in our review, "Duolingo Dutch does not reach B1 level for serious learners," despite its claims to cover standard Dutch (5).
The business model, while important for any company, influences Duolingo's design towards gamification and retention rather than comprehensive language acquisition. This often leads to the "nonsense sentences" you mentioned, which can be frustrating and do not always reflect natural, real-life conversations. While the app is constantly evolving, our assessments indicate that its approach can lead to "thin explanations" and content that is "weaker for production" of actual language (3, 8). The concern about AI-generated content contributing to this lack of real-world applicability is valid if it detracts from authentic language use.
For those aiming for conversational confidence and deeper understanding, Duolingo's method often proves insufficient. It can provide a good initial push, helping you learn basic vocabulary and grammar patterns, but it struggles to develop true fluency or the ability to engage in complex discussions. The polyglot's view you encountered likely highlighted these limitations, which align with our findings.
Instead of relying solely on Duolingo, especially past the beginner phase, consider diversifying your learning resources. For more structured lessons and grammar explanations, apps like Babbel Dutch or Busuu Dutch offer a different approach. Babbel, for instance, focuses more on practical dialogue, while Busuu emphasizes CEFR alignment and includes community corrections (6, 7). For building vocabulary, Memrise Dutch is an excellent choice, often featuring native speaker videos. Combining these resources with active speaking practice, perhaps with tutors or language exchange partners, will lead to more effective and sustainable progress in Dutch.
Ultimately, Duolingo can be a helpful, free starting point, but for serious learners aiming for proficiency, it should be supplemented or replaced with more comprehensive tools once basic concepts are grasped (1).