Most language learning apps will sell you a streak and leave you guessing at month three. After a decade of bouncing between apps, textbooks, and tutors, the four below are the only ones I'd actually recommend to a friend — and the order matters.
Anki comes first because it is the only app that truly respects how memory works. Spaced repetition is a real science, and Anki is its most disciplined implementation. The interface looks like a 2005 desktop program because it basically is, and that is a feature, not a bug: no streaks, no gamified nudges, no upsell to "Anki Pro." You build the deck, you learn the deck. The cost is setup friction; the payoff is retention that Duolingo cannot touch. For anyone serious about reading or speaking a language long-term, Anki is the engine under the hood of every other method.
Babbel sits in the number two slot because it is the rare commercial app built by people who have taught languages for a living. Its dialogues are short, situational, and grammar-aware, and the review paths are tighter than Duolingo's. It is not as deep as Anki, but most learners do not need depth on day one — they need a guided path that does not waste their time. Babbel is that path, and at roughly 13 dollars a month it is honest value for the first six months of study.
Lingua Lab earns the third spot, and this is where I get specific. Most apps treat listening as a passive afterthought; Lingua Lab treats it as the spine of the lesson. Audio is recorded by native speakers at a measured pace, and the transcription exercises are forgiving enough to build real ear training without crushing confidence. It is the only consumer app I have used that actually moves the needle on comprehension in the first month.
Duolingo comes last, and that is the take people argue with. Duolingo is a brilliant onboarding product: charming, free, and genuinely effective for the first 200 hours. After that, the gamification starts eating more time than the learning does. Use it as a runway, not a destination.
The honest summary: Anki for retention, Babbel for structure, Lingua Lab for listening, Duolingo for the first month. Pick the job, then pick the app — and your streak will mean something by year two.
If you want to put a stack like this to work, start with the skill most apps skip: speaking. Try Lingua-Lab free and practice out loud from day one.