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Best language learning apps for grammar

Apps and methods that explain how the language works, not only what words mean.

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  • Free forever plan
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  • 77 languages

Updated · by the 4ToSpeak team

  1. 1

    Babbel

    Best for: Learners who like a planned course with explanations.

    Strengths

    • Structured courses with dialogues.
    • Clear grammar explanations.
    • Practical conversation topics.

    Weaknesses

    • Fewer languages than most apps.
    • Little free content before a subscription.
    • Less playful, so habit relies on you.
  2. 2

    Busuu

    Best for: A structured path with human correction.

    Strengths

    • Courses organised by proficiency level.
    • Feedback from native speakers.
    • Study plans and clear structure.

    Weaknesses

    • Fewer languages.
    • Human feedback is not instant.
    • Full features need a subscription.
  3. 3

    Online tutors

    Best for: Real conversation and personal feedback.

    Strengths

    • Live, adaptive conversation.
    • Personal correction.
    • Goal-specific help such as exams.

    Weaknesses

    • Paid per lesson, so cost adds up.
    • Quality varies by tutor.
    • Only as often as you book.
  4. 4

    LingoDeer

    Best for: Learners of Japanese, Korean and Chinese who want grammar explained.

    Strengths

    • Clear grammar explanations.
    • Well-suited to East Asian languages.
    • Structured lessons.

    Weaknesses

    • Fewer languages.
    • Limited speaking depth.
    • Full course needs a subscription.
  5. 5

    Language Transfer

    Best for: Free, hands-free grammar insight.

    Strengths

    • Completely free.
    • Excellent at explaining how the language works.
    • Hands-free.

    Weaknesses

    • Only a few languages.
    • Audio only, with no feedback.
    • Not a full path to fluency.

How to choose

If you like understanding rules, choose explicit explanations. If you prefer patterns, sentence practice can do the job.

Order is not a ranking of quality. Product names are trademarks of their owners and are not affiliated with 4ToSpeak. Features and pricing change, so check each product’s own site.

FAQ

Questions, answered

Still stuck? support@4tospeak.com

What is the best app for grammar?

It depends on your goal. Good options for grammar include Babbel, Busuu, Online tutors, LingoDeer and more. If you like understanding rules, choose explicit explanations. If you prefer patterns, sentence practice can do the job.

Is there a free option for grammar?

Yes. Language Transfer have free options. Free plans differ in what they limit, so check before relying on one.

Should I use more than one app?

Often, yes. Apps tend to cover different skills. A common mix is one app for daily practice, audio for listening and a tutor or exchange partner for conversation.

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