Best Language Learning Apps for iPhone

Duolingo is the default and earns 'Best Overall' on a combination of language breadth (over 40 courses, recently expanded to include Chess as a new learning track), free tier usability, and the streak mechanic that genuinely builds daily habit. The lessons mix translation, listening, speaking, and matching exercises, and recent additions (Stories, AI conversation in Duolingo Max, the chess-as-a-language framing) push beyond the original gamified-drill model. The free tier remains genuinely usable for full courses, with ads between lessons and a limited-hearts system that mostly inconveniences power users rather than blocking access. The honest knocks are well-documented across reviews in multiple languages. First, Duolingo's gentle gamification can tip into nag pattern — multiple reviewers, including one Japanese user, called out passive-aggressive push notifications saying things like 'we noticed you've been ignoring Duo for a week' that drove uninstalls rather than re-engagement. Second, the teaching method works better for some languages (Spanish, French, German, Portuguese) than others (Mandarin, Russian, Japanese), where the lack of explicit grammar explanation hurts more and forces learners to seek external resources. Third, real conversational fluency does not come from Duolingo alone. Use it for daily review, especially in the first six months of learning a new language. Pair it with grammar resources and speaking practice. The free tier is good enough for most learners; Super Duolingo's main value is ad removal and unlimited hearts.

Babbel is the 'Best for Grammar' pick and the right choice when you want to actually understand what you are saying, not just memorize phrases for travel. Lessons are organized around dialogues that build progressively in complexity, with explicit grammar explanations and targeted exercises that drill specific structures — verb conjugations, noun cases, sentence ordering. The conversational focus is genuine — by the end of A1, you have practiced producing simple sentences across multiple verb tenses, not just recognizing them. Babbel's teaching team includes credentialed linguists, and the courses are designed by native speakers for each target language rather than translated from a master English course. Honest reviewer complaints repeat one theme that should not surprise anyone familiar with the category: the app aggressively pushes you to subscribe after a single lesson, with the free tier feeling more like a sales demo than a real free product. One Portuguese reviewer described being delivered a 'first lesson' and immediately presented with a paywall to continue. Pricing runs about $7-13 per month depending on plan length, with annual plans the most economical. Babbel Speak (AI conversation practice) is genuinely useful and reduces the speaking-anxiety barrier for shy learners. Best for adults who want structured learning with clear progression markers and are willing to pay for it. Not the best choice for very casual learners or for children — Duolingo's gamification works better for both.

Rosetta Stone is the original immersion app and still earns its place for one specific learning style: total immersion learners who want to avoid translation. The Dynamic Immersion method shows you images and native audio without translating to English, forcing you to deduce meaning from context the way a child learns their first language. For some learners — particularly visual learners and those who already know one related language to the target — this method clicks immediately and accelerates initial vocabulary acquisition. Reviewers describe it as 'interesting for those without any base in the language they want to learn' but acknowledge that intermediate learners outgrow it quickly because the format does not scale well to abstract grammar concepts. One French-language reviewer specifically called out that intermediate learners feel the lack of explanation. The app's main weakness is the lack of explicit grammar explanations: when a French verb conjugation pattern stops working in a new context, you have to figure out why on your own, sometimes by looking up grammar rules outside the app. Pricing has moved to a subscription model (around $12 per month or $96 per year) that costs more than Duolingo or Babbel for less daily content variety. The classic lifetime-license pricing model that built Rosetta Stone's brand has largely disappeared. Worth trialing for two weeks if you have never tried an immersion method and want to see if it clicks for you; pass otherwise.

Memrise earns the 'Best for Speaking' superlative thanks to its huge library of native-speaker videos. Real native speakers, recorded in natural settings — at home, on the street, in cafes — deliver words and phrases in the accents and registers you would actually hear in the target country, not the textbook-clean recordings most apps use. The 'MemBots' AI conversation feature, added in 2024, lets you practice dialogues with simulated speakers and receive feedback on your output. The honest knocks are real and have driven measurable user attrition. First, Memrise pulled community-created courses in 2024, which a meaningful chunk of longtime users have not forgiven — French and other language-learning forums lit up with complaints about losing years of accumulated study material, with one French reviewer writing they 'felt scammed by Memrise' over the change. Second, the free tier is more limited than Duolingo's, and meaningful progress increasingly requires the paid plan (around $9 per month or $60 per year). For pronunciation-focused learners and those who want to hear real native voices rather than synthetic audio, Memrise remains genuinely useful and unique in the category. For grammar-heavy learners, look elsewhere — Babbel handles grammar far better. Best paired with a primary learning app rather than used as a sole resource.

Speak & Learn English: Learna is a newer entrant focused specifically on English-language learners (rather than English speakers learning other languages), and earns 'Best for Travelers' for its conversational-scenario-driven approach. The 4.63 average rating across 4,200 US reviews reflects a strong product for its target audience. It is included here as a representative of the high-quality English-for-non-native-speakers category that often gets overlooked by US-focused listicles, which tend to assume the user is an English speaker learning another language. The pedagogy is conversational and AI-assisted, with realistic dialogue practice across travel, business, and daily-life scenarios, plus pronunciation feedback that flags specific sounds. The lessons are organized in short modules that fit between meetings or during commutes, which suits the working-professional target user. Free tier limits are tight — typically a few lessons per day before hitting a paywall — and meaningful daily use requires a subscription (around $50 per year on the annual plan). If you are recommending an app to a friend, family member, or coworker learning English for professional or immigration purposes, this earns a serious look alongside Babbel and ELSA. For English speakers learning other languages, this is not the app for you — look at Duolingo or Babbel instead. The developer's narrower focus is its strength.

EWA English serves the same niche — non-native English learners — with a different approach: books, audiobooks, and video courses rather than dialogue drills. The Arabic-language subtitle (تعلم الإنجليزية, meaning 'learn English') reflects strong adoption in Arabic-speaking markets, and the app has built a serious following in MENA and Asia where English fluency is a meaningful economic differentiator. The honest reviews flag two issues common to subscription-heavy language apps. First, free-trial-to-paid conversion that surprises users, with one French-language reviewer describing signing up for a three-day trial and being unable to access their pro account from a different device, then unable to cancel cleanly. Second, translation quality is uneven outside the most common language pairs — translations from English to less-supported languages can be incorrect or incomplete, as flagged in multiple reviews including one in German noting the limitations of the points system. The reading-and-listening model is genuinely effective for vocabulary building and contextual exposure — comparable to Memrise's strengths but with longer-form content like full novels and TED talks. For Arabic, Russian, or Spanish speakers learning English, this is worth a trial. The free tier shows enough of the product to evaluate before committing. For English speakers learning other languages, look elsewhere.

ELSA Speak earns 'Best for Pronunciation' for one specific superpower: AI-driven phoneme-level feedback on your spoken English. Speak a sentence; ELSA shows you which sounds you nailed and which need work, color-coded down to individual phonemes, with targeted drills for the weak ones. Reviewers across languages describe it as 'incroyable' and the best pronunciation tool they have ever used, with French and other non-native English speakers reporting measurable improvement after months of consistent practice. The technology genuinely works — the underlying speech recognition was trained on millions of non-native English samples specifically. For non-native English speakers preparing for IELTS, TOEFL, professional interviews, or simply wanting clearer everyday conversations, ELSA is transformative in a way few language apps actually are. The honest knocks: meaningful daily use requires a subscription (about $12 per month or $90 per year — toward the upper end of the category), and some reviewers note that progress plateaus after several months of consistent use unless you have other input sources to integrate the pronunciation gains into. ELSA is also English-only — if you want pronunciation feedback in French, Mandarin, or Spanish, look at Falou or Babbel Speak instead. Best paired with a separate vocabulary or grammar app, with ELSA dedicated to the speaking skill specifically.

Falou earns 'Best AI Tutor' for its AI conversation engine, which works across multiple languages (not just English, which sets it apart from ELSA). Lessons are short — five to ten minutes — conversational, and focused on practical scenarios you actually encounter: ordering food at a restaurant, asking directions in a new city, introducing yourself to a colleague's family. The voice recognition is forgiving enough to keep beginners motivated while still flagging clear pronunciation mistakes that would prevent comprehension. Reviewer praise is enthusiastic across multiple languages, with users in Portuguese describing it as 'excellent for training pronunciation' and noting that it covers diverse languages within one app rather than forcing learners to switch tools. The interface is clean and the daily-lesson cadence works well for habit-building, similar to Duolingo's streak design. The honest critique is consistent across reviews: the free tier limits practice time per day (typically one or two short sessions), and the paid tier feels expensive relative to Duolingo at around $13 per month, though closer to Babbel's pricing. One Spanish-language reviewer specifically called out the daily-time limit as frustrating for committed learners. If AI conversation is the feature you want and you are learning a non-English language, Falou is the most polished pick available right now. For English-only learners, ELSA Speak remains stronger on pronunciation specifically.

Busuu earns 'Best Free' position because while its paid tier follows the category norm, it offers more meaningful free content than Babbel or Rosetta Stone, plus a unique community feature: native speakers correct your written exercises at no charge in exchange for you correcting theirs. The CEFR-aligned course structure helps you understand exactly where your skills sit on the international proficiency scale (A1, A2, B1, B2, C1), which matters for job applications and university admissions where formal language requirements are stated in CEFR terms. Reviewers describe Busuu as the best app for actually learning Spanish, with measurable progress over months of structured use. The community feedback mechanic is the standout — where native speakers correct your writing exercises with explanations, often within hours of submission. The honest knocks repeat the category pattern. First, the free tier is heavily limited; one Portuguese reviewer called it 'very basic in the free version' with most useful content paywalled and lessons feeling thin without subscription. Second, the August 2024 update pushed more content behind subscription, and longtime users noticed the regression in free-tier value. Pricing is competitive (around $7-13 per month) and includes a 14-day free trial. Best for learners who want structured progress markers, CEFR alignment, and access to native speakers without paying for a tutor session.

Drops earns 'Best for Kids' because its visual, gamified, vocabulary-only approach works exceptionally well for children and teens learning their first second language. The pedagogy is narrowly focused: vocabulary only, taught through fast-paced visual matching games with attractive flat-design illustrations and minimal text. The five-minute daily limit on the free tier sounds restrictive but works well as a habit-building structure for younger learners who would otherwise get overwhelmed by Duolingo's longer sessions. Drops also covers languages most other apps ignore — Maori, Yiddish, Icelandic, Hawaiian, Cantonese, Esperanto, Ainu — making it the right pick for niche languages or heritage-language learners reconnecting with family languages. Reviewers consistently praise the visual design and the language breadth, with one French reviewer noting 'the best app for learning vocabulary, organized into themes' (food, travel, professions, animals). The honest critique is that Drops will not teach you grammar, syntax, or how to construct sentences — it is purely vocabulary acquisition through visual association. Pair it with a primary app (Duolingo, Babbel) for the language you are really learning, and use Drops to keep an extra language on the side or to cover a language no other app supports. The five-minute limit is more of a feature than a bug for habit-building, especially for younger users.