Comparison

Langua vs Sentence Lab

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Langua

Practice speaking a new language with an AI tutor that sounds authentic and adapts to your level. Engage in unlimited conversations, receive instant feedback, and build confidence without pressure. Focus on fluency and vocabulary that sticks through immersive practice and personalized learning tools.

Highlights
  • Unlimited speaking practice with realistic AI
  • Hands-free Call Mode for real-time conversations
  • Instant corrections with explanations
  • Reply suggestions and instant translations
  • Vocabulary building with spaced repetition
  • AI stories with saved words
Features
Read full description

We're dedicated to building the world's best AI app for language learning. Traditional apps build vocabulary. Langua builds confidence to speak - through immersive practice with intelligent AI that sounds authentic, corrects naturally, and adapts to your level. WHY LEARNERS CHOOSE LANGUA Maria C.: "I LOVE Langua! I've been using it daily for months. The chat feature is fantastic - it feels like talking to a real, empathetic language partner who corrects me and suggests more advanced phrasing. It's pressure-free and I'm encouraged by how much I'm improving both my intermediate German and my more basic Italian. I taught French for 27 years and have learned Spanish on my own in recent years. This is a fantastic tool for practicing speaking." Guy S: "Langua's AI is very sophisticated and, so far at least, not at all robotic. The conversations feel authentic. The AI provides very helpful feedback on each conversation and gives tips for improvement. Langua is invaluable for language learners like me who can't frequently visit the country where their target language is spoken." Featured in The Guardian and recommended by leading polyglots including Luca Lampariello, Olly Richards and English with Lucy. THE BEST AI FOR LANGUAGE LEARNING THROUGH CONVERSATION Unlike apps that rely on multiple choice or scripted dialogues, Langua uses advanced conversational AI that lets you express yourself freely across 20+ languages: • Unlimited speaking practice with remarkably realistic AI characters - many cloned from YouTubers we partner with. Choose from multiple dialects. • Call Mode for hands-free practice: Have real-time voice conversations while driving, walking, or relaxing. No typing needed. • Instant corrections with explanations: Get feedback in one tap or review detailed reports after each chat. • Speak your native language when stuck: Can't find the right word? Switch languages mid-conversation and the AI will help you learn the phrase. • Huge conversation library: Roleplays, debates, grammar practice, vocabulary building, or free conversation about your interests. ADAPTS TO ALL LEVELS Whether you're just starting or already conversational, Langua adapts to you. Zero pressure to perform perfectly - our intelligent support features let you converse confidently at any level: • Reply suggestions when you're not sure what to say • Instant translations with usage examples • Innovative guided conversation course for beginners Advanced learners enjoy sophisticated conversations with cultural insights and colloquial expressions to break through the intermediate plateau. Practice freely, make mistakes, and learn in a judgment-free environment. BUILD VOCABULARY THAT STICKS • Get instant translations with usage examples and similar phrases • Save words and let the AI weave them into chats • Master vocabulary with spaced repetition flashcards • Read AI stories packed with your saved words for reinforcement REAL RESULTS Join thousands of language learners who practice daily with Langua. Our members consistently report faster progress in speaking confidence compared to traditional apps. TRY FOR FREE Start with a free conversation, then unlock unlimited practice with our risk-free trial. Discover why learners worldwide trust Langua for their daily speaking practice. Need help? Our support team (real humans!) is ready to answer your questions and help you succeed. AVAILABLE LANGUAGES: AI for English • AI for Spanish • AI for French • AI for German • AI for Italian • AI for Portuguese • AI for Dutch • AI for Swedish • AI for Romanian • AI for Russian • AI for Greek • AI for Turkish • AI for Danish • AI for Norwegian • AI for Finnish • AI for Polish • AI for Czech • AI for Croatian • AI for Japanese • AI for Chinese • AI for Korean • AI for Hindi Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sentence Lab

Features
Read full description

Sentence Lab helps you build real Spanish fluency by practicing complete sentences, not just flashcards. HOW IT WORKS • See an English sentence • Type the Spanish translation • Get instant feedback • Learn from your mistakes with helpful explanations SMART LEARNING Sentence Lab uses spaced repetition to optimize your learning. Sentences you struggle with appear more often, while mastered content is spaced out for efficient long-term retention. FEATURES • 1,500+ carefully crafted sentences from A1 to C1 level • Spaced repetition that adapts to your progress • Grammar reference guides • Travel vocabulary reference and flashcards • Detailed statistics to track your improvement • Daily streak to keep you motivated • Accent keyboard for easy Spanish character input • Easy mode with word bank for beginners • Custom content creation for premium users • Scenario conversations for premium users • Offline practice support PRACTICE MODES • New Sentences - Learn fresh content • Review - Practice sentences due for review • Mixed - A balanced variety • Weak Areas - Focus on challenging sentences • My Content - Create your own custom content to practice Build real Spanish fluency, one sentence at a time.

Screenshots

Langua4 screens
Sentence Lab4 screens

Verdict

The call

The clearest difference is ads: Sentence Lab at none against Langua's shown. Langua's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Langua sells 6 in-app purchases, starting at $19.99 per month and Sentence Lab sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Langua ships an update every 3 weeks, Sentence Lab every 6 weeks. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Langua versus Sentence Lab: the parameters behind the verdict, then further details
ParameterLanguaSentence Lab
PriceFreeFree
Rating4.6 (2.7K ratings) — better—
Positive reviews57.6% of reviews—
Number of ratings2.7K — better—
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size121 MB43 MB
Age rating12+4+
DeveloperLanguaTalk Inc.JEFFREY ROBERT SANCHEZ

Bugs and requests

Langua

Reported bugs

2 issues
  • Recording errors causing the app to become unusable
  • Compatibility issues with older devices

Requested features

5 requests
  • Ability to suggest pronunciation changes
  • Default playback speed control for AI conversations
  • Controls for sentence length and vocabulary level in AI conversations
  • More beginner-level podcast and content options
  • Support for additional languages like Mandarin Chinese

Sentence Lab

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Langua

Subscriptions6
  • Langua Pro Communicate Monthly3 Days trial$19.991 Month
  • Langua Pro Unlimited - Monthly3 Days trial$29.991 Month
  • Langua Pro (Communicate) - 3 months3 Days trial$49.993 Months
Show 3 more
  • Langua Pro (Unlimited) - 3 months3 Days trial$69.993 Months
  • Langua Pro Communicate Annual7 Days trial$149.991 Year
  • Langua Pro Unlimited - Annual7 Days trial$199.991 Year
2 purchases

Sentence Lab

Subscriptions2
  • Sentence Lab Monthly Subscription$5.991 Month
  • Sentence Lab Yearly Subscription$49.991 Year

Questions

Is Langua free?
Langua is free to download, with in-app purchases available.
Is Sentence Lab free?
Sentence Lab is free to download, with in-app purchases available.
Do Langua or Sentence Lab have ads?
Langua shows ads; Sentence Lab does not.
Which is updated more often, Langua or Sentence Lab?
Langua ships an update every 3 weeks, and Sentence Lab every 6 weeks. Most recently, Langua was updated on October 23, 2026 and Sentence Lab on October 10, 2026.

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