What Actually Matters (and What Doesn't)
Matters: Speaking Practice Quality
If your goal is to speak a new language, the app needs to make you speak. Out loud. In realistic situations. With feedback on what you're getting wrong.
This sounds obvious, but most language learning apps don't do this. They have you translate sentences, match words to pictures, or fill in blanks. These activities build word recognition, not speaking ability. You can complete an entire Duolingo course and still freeze when someone talks to you.
Look for apps with AI conversation practice, roleplay scenarios, and speaking exercises that require you to produce language, not just recognize it. The best AI speaking apps simulate real conversations with correction built in.
Matters: Feedback Depth
The difference between a useful app and a time-waster often comes down to feedback. Does the app tell you specifically what you got wrong and how to fix it? Or does it just show a score and move on?
Good feedback looks like: "You used the wrong verb tense here. You said X, but in this context you should use Y because Z." Bad feedback looks like: "Your accuracy was 73%."
Apps like Lingrow provide detailed post-conversation analysis covering grammar, vocabulary, fluency, and pronunciation with specific improvement tips. Others give brief summaries or no feedback at all. This single factor probably has the biggest impact on how fast you improve.
Matters: Content That Matches Your Level
An app with 1,000 beginner lessons is useless if you're intermediate. An app designed for advanced learners won't help a beginner. Check that the app has enough content at your current level and at the level above it so you have room to grow.
Also check the progression. Does the content get harder as you improve, or does it plateau? Many apps have strong beginner content but get repetitive at intermediate levels. If you're past beginner stage, look for apps with enough depth to keep challenging you.
Matters: Your Target Language Has Full Support
Many apps list 20+ languages but only have deep content for 3-4. The language count in marketing materials is often misleading. Spanish and English usually get full treatment. Korean, Chinese, or less common languages might get a basic chatbot with no structured lessons.
Before paying, verify that your specific language has:
- A structured curriculum (not just free-form chat)
- Speaking practice with feedback
- Enough content for your level
- Active development (is new content being added?)
Doesn't Matter: Gamification
Streaks, points, leaderboards, and achievements feel good but don't predict learning outcomes. An app where you maintain a 365-day streak of translation exercises hasn't taught you to speak any better than one where you do 30 focused speaking sessions.
Gamification helps with habit formation, which has value. But don't choose an app because the gamification is engaging. Choose it because the actual learning activities are effective. If streaks help you show up daily, great. But showing up to do the wrong activity daily doesn't get you to fluency.
Doesn't Matter: Language Count
An app that supports 15 languages well is more valuable than one that claims 50 but only has real content for 5. Focus on the quality of your specific language's course, not the total number of flags on the marketing page.
Doesn't Matter: Celebrity Endorsements and Awards
App Store awards, Google Play awards, and celebrity partnerships are marketing, not quality indicators. Evaluate what the app actually does when you open it and start learning.
The Five Types of Language Learning Apps
1. AI Conversation Apps
Examples: Lingrow, Speak, Teuida, Praktika, Pingo AI
How they work: You have AI-powered conversations in your target language. The AI responds to what you say, and the app provides feedback on your pronunciation, grammar, and vocabulary.
Best for: Building speaking skills, pronunciation practice, conversation confidence.
Limitations vary by app: Some have detailed feedback, others have minimal feedback. Some have structured lessons, others are conversation-only. The quality gap in this category is enormous.
Our recommendation: This category should be the foundation of your learning stack. AI conversation practice gives you the speaking repetitions that build real skills. Lingrow offers the deepest combination of structured lessons and conversation practice with the most detailed feedback.
2. Gamified Course Apps
Examples: Duolingo, Busuu, Memrise
How they work: Structured courses with translation exercises, multiple-choice, matching, and some speaking exercises. Heavy gamification to encourage daily use.
Best for: Building vocabulary, maintaining a daily study habit, getting a free introduction to a language.
Limitations: Speaking practice is minimal or nonexistent in the core experience. Grammar explanations are often thin. The exercises test recognition more than production. Learners who want to speak need to supplement with a conversation app.
3. Grammar and Course Platforms
Examples: Babbel, Busuu (premium)
How they work: Structured courses built by linguists with explicit grammar instruction, vocabulary lessons, and some speech recognition exercises.
Best for: Learners who want clear grammar explanations and structured progression.
Limitations: Limited conversation practice. Speech recognition is usually pass/fail rather than detailed correction. These work best when paired with a speaking app.
4. Audio-First Apps
Examples: Pimsleur, Michel Thomas
How they work: Listen-and-repeat lessons that build pronunciation and basic conversational patterns through spaced repetition audio exercises.
Best for: Commuters, learners who prefer audio-only study, building pronunciation foundations.
Limitations: No visual component, no AI interaction, rigid lesson progression. Expensive. Best as a supplement, not a primary tool.
5. Specialized Tools
Examples: Anki (flashcards), Skritter (Chinese/Japanese characters), LingQ (reading)
How they work: Focused on one specific skill rather than comprehensive language learning.
Best for: Filling specific gaps in your learning. Vocabulary retention (Anki), character writing (Skritter), or reading comprehension (LingQ).
Limitations: Not standalone learning tools. Always used alongside other apps.
Choosing by Learner Type
"I'm a Complete Beginner"
Start with a structured path. You need grammar basics, core vocabulary, and pronunciation fundamentals before jumping into open conversation.
Recommended setup:
- An AI conversation app with guided lessons (like Lingrow, which teaches concepts before making you use them)
- A vocabulary tool (Anki or the app's built-in vocabulary features)
- Optional: A gamified app like Duolingo for extra vocabulary practice
"I've Studied but Can't Speak"
This is the most common situation. You know grammar rules and vocabulary but freeze in conversation. You need volume: lots of speaking practice with feedback.
Recommended setup:
- An AI conversation app as your primary daily tool. Focus on speaking scenarios that match real situations you'll encounter
- Weekly conversation with a human tutor or language partner for the real-world pressure that AI can't fully replicate
"I'm Intermediate and Stuck"
The intermediate plateau is real. Content gets repetitive, progress feels slow, and you're not sure what to focus on. You need targeted practice on your specific weaknesses.
Recommended setup:
- A conversation app with detailed feedback that identifies your weak points (generic feedback isn't enough at this level)
- Listening input at natural speed (podcasts, YouTube, TV shows)
- A tutor who can work on the specific areas where you're stuck
"I Want to Learn Korean, Japanese, or Chinese"
Asian languages have specific challenges (writing systems, tones, honorifics) that many apps handle poorly. Choose tools designed with these languages in mind.
Recommended setup:
- A speaking app with strong support for your language: Korean, Japanese, or Chinese
- A character/writing tool if needed (Skritter for Chinese/Japanese, or the writing features in language-specific apps)
- An SRS tool for vocabulary retention (Anki with language-specific decks)
"I Want to Learn Spanish"
You're in luck. Spanish has the most app options and the best content across every platform. Your main decision is whether you want structured grammar teaching or conversation-first learning.
Recommended setup:
- For conversation-first: Pick a speaking app with Spanish support and detailed feedback
- For grammar-first: Babbel or a similar course platform, plus a speaking app for practice
- Listening input: Spanish has incredible podcast and YouTube content for learners
Red Flags to Watch For
- "Learn a language in 30 days": No app does this. Be skeptical of unrealistic claims.
- Unclear pricing: If you can't tell what the app costs before you sign up, expect hidden upsells.
- AI features require a separate add-on: Some apps advertise AI features but charge extra for them beyond the base subscription.
- Language listed but not supported: Check that your language has structured content, not just a basic chatbot.
- No speaking practice: If the app is mostly reading and translating, it won't teach you to speak.
- Lenient speech recognition: An app that accepts everything you say as correct is worse than one with no speech recognition at all. You need honest feedback.
The Complete Stack
No single app teaches you a language. The most effective approach is combining 2-3 tools that cover different skills:
- Speaking practice app (daily, 15-30 minutes): The core of your routine. This is where you build the skills that actually let you communicate.
- Vocabulary retention tool (daily, 10 minutes): Anki or a similar SRS tool to make sure new words stick.
- Listening input (daily, passive or active): Podcasts, YouTube, shows in your target language.
- Grammar resource (as needed): A textbook, website, or app for when you need to understand a rule.
- Human conversation (weekly): A tutor or language partner for real-world practice.
For a detailed breakdown of how to build this stack, see the complete language learning stack guide.
The Bottom Line
The best language learning app is the one that makes you speak out loud, tells you what you're getting wrong, and has enough content to keep challenging you as you improve. Everything else is secondary.
Don't overthink it. Pick an app that matches your goals, start using it daily, and add other tools as you figure out what you need. Consistency beats perfection. Twenty minutes of focused speaking practice every day will outperform any amount of research into which app is theoretically optimal.
Korean learners: take the free Korean level test to figure out your TOPIK level before picking an app. It takes 3 minutes and helps you choose the right difficulty. You can also use the Korean dictionary and verb conjugator alongside any app.
Start speaking today. Optimize later.
