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https://apps.apple/app/duolingo-learn-languages-for-free/id570060128 Babbel: https://apps.apple/app/babbel-learn-languages/id412404503 Busuu: https://apps.apple/app/busuu-learn-languages/id442971974 Memrise: https://apps.apple/app/memrise-learn-languages-fast/id457724906 Rosetta Stone: https://apps.apple/app/rosetta-stone-learn-languages/id494236302 Android Duolingo: https://play.google/store/apps/details?id=com.duolingo Babbel: https://play.google/store/apps/details?id=com.babbel.mobile.android.en Busuu: https://play.google/store/apps/details?id=com.busuu.android.enc Memrise: https://play.google/store/apps/details?id=com.memrise.android.memrisecompanion Rosetta Stone: https://play.google/store/apps/details?id=com.rosettastone.rosettastoneandroid
