Duolingo is a great way to build a daily habit. But many learners hit the same wall after a few months: plenty of streaks, not much confidence when it’s time to actually speak or understand a native speaker.
The fix usually isn’t replacing Duolingo. It’s adding the right tool for the skill you’re missing. Below I’ve grouped eight free or free-to-start apps like Duolingo by what they’re best at, so you can pick one that fills your gap instead of collecting apps.
Quick comparison
| App | Best for | Free option |
|---|---|---|
| Anki | Remembering vocabulary long term | Free on computer, web and Android; iPhone app is paid |
| Memrise | Real-world phrases with native-speaker video | Free plan with limited content |
| Busuu | Structured courses with feedback from native speakers | Free basic plan |
| Clozemaster | Vocabulary in context after the basics | Free plan; Pro adds features |
| Language Transfer | Understanding how a language works | Completely free audio courses |
| Tandem | Language exchange with native speakers | Free with paid extras |
| HelloTalk | Chatting and corrections from native speakers | Free with paid extras |
| Mango Languages | Full courses at no cost | Free through many public libraries |
Free plans change often, so check each app’s pricing page before you commit.
For vocabulary that sticks
1. Anki
Anki is a flashcard app built on spaced repetition: it shows you each word right before you’re likely to forget it. That makes it one of the most efficient ways to learn a lot of vocabulary.
- Why it’s good: ready-made shared decks for almost every language, plus full control over your own cards
- Keep in mind: the interface is plain, and it takes an evening to set up well
- Cost: free on Windows, Mac, Linux, the web (AnkiWeb) and Android (AnkiDroid). The official iPhone app, AnkiMobile, is a one-time paid purchase.
2. Clozemaster
Once you know the basics, Clozemaster helps you learn words in real sentences by filling in the missing word. It’s a natural next step after finishing a Duolingo course.
- Why it’s good: thousands of sentences, focused on the most common words first
- Keep in mind: it’s not for complete beginners
- Cost: free plan available; Pro unlocks extra modes and features
For real-world listening
3. Memrise
Memrise mixes vocabulary practice with short videos of native speakers saying everyday phrases, so you hear how people actually talk, not just textbook sentences.
- Why it’s good: practical phrases and real accents
- Keep in mind: much of the content needs the paid plan
- Cost: free plan with limited lessons
4. Language Transfer
Language Transfer is a set of free audio courses that teach you to think in the language, building sentences step by step. It’s excellent for commutes and walks.
- Why it’s good: genuinely free, no ads, and very effective at explaining grammar without tables
- Keep in mind: only a handful of languages are available
- Cost: free (supported by donations)
For structured lessons
5. Busuu
Busuu offers courses that follow recognised language levels, and you can submit writing and speaking exercises to be corrected by native speakers in the community.
- Why it’s good: clear progression plus human feedback
- Keep in mind: the free plan limits how many lessons and features you can use
- Cost: free basic plan; Premium unlocks the full course
6. Mango Languages
Mango has full conversation-based courses in dozens of languages, and many public libraries give members free access.
- Why it’s good: a complete paid-quality course at no cost if your library supports it
- Keep in mind: access depends on your local library
- Cost: free with a participating library card
For speaking with real people
7. Tandem
Tandem matches you with native speakers who want to learn your language, so you help each other by text, voice or video.
- Why it’s good: real conversation practice, which is exactly what most apps lack
- Keep in mind: finding a good partner can take a few tries
- Cost: free, with a paid plan for extra features
8. HelloTalk
HelloTalk works like a social app for language learners. You chat with native speakers, and they can correct your messages right in the conversation.
- Why it’s good: low-pressure practice and instant corrections
- Keep in mind: as with any social app, use the privacy settings and don’t share personal details
- Cost: free, with a paid plan for extras
How I’d combine them
If you’re using Duolingo now, I’d keep it for your daily habit and add one app for your weakest skill:
- You forget words quickly: add Anki
- You can’t follow native speakers: add Memrise or Language Transfer
- You freeze when you have to speak: add Tandem or HelloTalk
- You want a proper course: try Busuu, or check whether your library offers Mango
One focused tool used every day will move you further than five apps used occasionally.
Frequently asked questions
Is there a completely free alternative to Duolingo? Yes. Language Transfer is completely free, Anki is free on most devices, and Mango Languages is free through many public libraries.
What’s better than Duolingo for speaking? For speaking, nothing beats talking to real people. Tandem and HelloTalk connect you with native speakers for free.
Can I become fluent with just an app? Apps are great for vocabulary and habits, but fluency also needs listening to real content and speaking with people. Use apps as one part of your routine.
Which app is best for complete beginners? Busuu and Memrise both start from zero and guide you step by step. Language Transfer is also very beginner-friendly.
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Sources
- Dr Matt Lynch: Best Free Language Learning Apps of 2026–2027