The gold-standard spaced-repetition flashcard app with community decks for every language.
AppsTools Free BeginnerIntermediateAdvanced
vocabulary
Details
Free on desktop, Android and web; the iOS app is a one-off paid purchase that funds the project. The interface is dated and the options are overwhelming at first, but nothing beats it for retaining vocabulary over years. Most effective when you stop grinding premade decks and start mining sentences from things you actually read or watch.
Structured CEFR courses with written corrections from native speakers.
AppsCourses Freemium BeginnerIntermediate A1โB2
vocabularygrammarwritingspeaking
Details
Covers 14 languages along an explicit CEFR path, and its best feature is the community exchange: you submit short writing or speaking exercises and real native speakers correct them, free of charge, in exchange for you correcting theirs. The free tier is limited to core lessons; Premium unlocks grammar, offline and the full path. A solid Babbel alternative if you specifically want writing practice with human feedback.
Fill-in-the-blank sentence drills for vocabulary after you know the basics.
AppsTools Freemium IntermediateAdvanced A2โC1
vocabularyreadinggrammar
Details
Built on Tatoeba sentences, it drills words in context by frequency band across 50+ languages and 170+ language pairings, with a genuinely generous free tier. It explicitly starts where beginner apps end, so it is the natural 'what now?' answer for someone who finished a Duolingo tree. Sentences are crowd-sourced and occasionally awkward or oddly specific, and it teaches nothing about grammar explicitly.
Gamified daily lessons in 40+ languages; great for habit-building, weak beyond A2.
Apps Freemium Beginner A1โA2
vocabularygrammarreadinglistening
Details
The free tier is genuinely usable (ads plus a limited 'hearts' system); Super removes both for about $96/yr. Its real value is streak-driven consistency for absolute beginners, and the smaller courses are thin machine-assisted content rather than the polished Spanish or French trees. Treat it as a warm-up habit, not a curriculum โ nobody reaches conversational fluency on Duolingo alone.
Enormous library of short audio lessons with dialogues, transcripts and flashcards.
PodcastsCoursesApps Freemium BeginnerIntermediateAdvanced A1โC1
listeningvocabularygrammarpronunciation
Details
Breadth is the selling point: hundreds of lesson-sized audio and video episodes across every level, each with a dialogue, line-by-line breakdown, PDF notes and word lists. Quality varies between series and the site is relentless about upsells and 'sales' that never end. Best used with a cheap annual plan as a supplementary drip of structured material, not as your only course.
Text, call and correct with native speakers in a language-exchange feed.
AppsCommunities Freemium BeginnerIntermediateAdvanced
writingspeakinglistening
Details
Built-in correction tools let partners fix your messages inline, and the social 'moments' feed gets you corrections from strangers without arranging a call. Free for the core exchange; VIP adds more translations and simultaneous target languages. The persistent caveat is that a fair share of users treat it as a dating app, and exchange partners are unreliable โ it works best once you already have some output to correct.
Read and listen to real content while tracking every word you know.
AppsTools Freemium BeginnerIntermediateAdvanced A2โC1
readinglisteningvocabularyimmersion
Details
Import podcasts, articles or ebooks, tap unknown words for definitions, and LingQ tracks your known-word count over time. The free tier caps how many saved words you can keep, so serious use means paying (~$13/month or less annually). The interface is clunky and the built-in SRS is weaker than Anki, but the reading-plus-audio workflow with 50+ languages is hard to replicate elsewhere.
Vocabulary drills backed by clips of native speakers saying the phrase.
Apps Freemium BeginnerIntermediate A1โB1
vocabularylisteningspeaking
Details
The 'learn with locals' video clips are the distinguishing feature โ you hear real people at real speed rather than TTS. Be aware that Memrise moved user-created community courses off the main app in 2024 onto a separate site, which gutted what many long-time users valued most, and the app has leaned hard into AI chat features since. Fine as a phrase-and-vocabulary app for major languages; if you came for the community decks, use Anki instead.
Record yourself and get free human feedback on your pronunciation.
AppsTools Freemium BeginnerIntermediate
speakingpronunciationlistening
Details
A 501(c)(3) nonprofit: you shadow native audio, record your own version, and a real human coach returns feedback โ 10 free submissions a month, unlimited for about $20/month, with full scholarships for anyone who needs one. Covers French, Spanish, Chinese, Japanese, Korean, German, Italian, Portuguese, Russian and English. It only fixes pronunciation and delivery, so it complements rather than replaces conversation practice.
Language-exchange app with moderated profiles and easy voice/video calls.
AppsCommunities Freemium BeginnerIntermediateAdvanced
speakingwritinglistening
Details
Same idea as HelloTalk but with vetted profiles and a cleaner focus on actual voice and video calls, which makes it noticeably less spammy in practice. Free to use; Pro adds unlimited partner search and extra languages, and the app also sells paid tutors. Both apps live or die on finding one or two committed partners, so expect to message a lot of people before anything sticks.
Structured dialogue-based courses in 13 languages, built by actual linguists.
AppsCourses Paid BeginnerIntermediate A1โB1
vocabularygrammarspeakinglistening
Details
Subscription-only after a handful of free intro lessons, typically $10โ15/month with big discounts on annual plans. Lessons are short, dialogue-first and explain grammar properly, which makes it a much more serious beginner course than Duolingo. It covers only 13 languages and effectively stops around B1, so it is a stepping stone rather than a destination.
A daily 10-minute emailed French lesson that adapts to the mistakes you make.
CoursesApps Paid BeginnerIntermediateAdvanced A1โC1
grammarvocabularylisteningwriting
Details
Gymglish's French course sends one short, story-driven lesson per day by email and adjusts the next one based on what you got wrong, which builds a habit better than most apps. The humour is odd and very French, and you either enjoy it or find it grating. Subscription-only after the trial; the daily-email format means it suits busy adults far more than intensive learners.
Mass-sentence audio drilling for listening and speaking automaticity.
AppsCourses Paid BeginnerIntermediate A1โB2
listeningspeakingpronunciation
Details
You listen to and repeat thousands of native-recorded sentences on a spaced schedule, which builds fluent output patterns without explicit grammar study. It covers 60+ languages and keeps nine minority languages (Catalan, Welsh, Taiwanese, Kurdish and others) permanently free as a preservation effort. It is expensive at roughly $20โ40/month, and the repetition is monotonous โ most reviewers call it effective but overpriced, so try the 7-day trial first.
Licensed TV shows with interactive subtitles in 15 languages.
MediaApps Paid IntermediateAdvanced A2โC1
listeningimmersionvocabulary
Details
A streaming service where every show has clickable dual subtitles and saved words become flashcards, covering 15 languages with apps on phone, Roku and TV. It solves the 'what do I watch' problem for languages where Netflix's catalogue is thin. The library is much smaller than a mainstream streamer and it is subscription-only โ if you already pay for Netflix, Language Reactor's free tier does most of the same job.
Conversation-driven courses in 70+ languages, often free through your library.
AppsCourses Paid BeginnerIntermediate A1โB1
speakinglisteningvocabularypronunciation
Details
Lessons build outward from real conversations with colour-coded literal translations and cultural notes, and the catalogue includes endangered and indigenous languages nobody else covers. Retail pricing starts around $10/month, but a very large number of public libraries and universities give patrons free access โ check yours before paying. Content depth per language is modest, so it suits travellers and early learners more than people pushing toward B2.
Turns Netflix, YouTube and web pages into Anki-style sentence cards.
ToolsApps Paid IntermediateAdvanced
immersionvocabularyreadinglistening
Details
The heavyweight immersion toolkit: one-click sentence mining with audio, screenshot and definitions, plus its own SRS and known-word tracking, for 11 languages including Japanese, Korean, Mandarin and the major European ones. A 10-day free trial then a subscription (roughly $10/month). Overkill unless you are committed to a sentence-mining routine โ if that describes you it saves hours a week, otherwise Language Reactor's free tier is enough.
Audio-only spaced-recall courses that drill speaking from lesson one.
CoursesApps Paid BeginnerIntermediate A1โB1
speakinglisteningpronunciation
Details
Thirty-minute audio lessons force you to produce sentences out loud before you see anything written, which builds unusually good accent and recall. Subscriptions run about $15โ21/month (all-access covers 50+ languages), and older courses are often available through public libraries. It is slow and vocabulary-light by design, so pair it with reading โ but for commute or walking time it is the best use of otherwise dead hours.
AI speaking partner that makes you talk out loud every session.
Apps Paid BeginnerIntermediate A1โB1
speakingpronunciationlistening
Details
Unlike most apps it is built around producing speech: you repeat, roleplay and converse with an AI tutor that gives pronunciation and phrasing feedback in real time. Covers Spanish, French, Korean, Japanese, Italian and Chinese for English speakers, with a 7-day trial then a subscription (roughly $20/month or $99/yr). Good for overcoming the fear of speaking before your first human lesson, but an AI will not push back or drift off-script the way a real conversation partner does.