Comparison

OuiVerb vs Lex Quest DE

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

Head to head
About

OuiVerb

This app helps you learn languages by focusing on your interests and real-life conversations. It uses AI to create personalized lessons from your own speech and provides tools to understand complex texts and improve your writing.

Highlights
  • AI-powered conversation practice
  • Personalized flashcards from your speech
  • Instant verb conjugation with examples
  • Text simplification and key word extraction
  • AI-assisted writing and style improvement
  • Smart flashcard system for review
  • Progress tracking and habit building
Features
Read full description

OuiVerb is a personal on-device AI language tutor designed to work 100% offline once set up. KEY FEATURES: • AI Dialogues — Practice real-life scenarios (café, hotel, job interview) with customizable AI tone and personality. • Voice to Cards (Echo) — Speak a phrase in your native language, and AI instantly creates a translated flashcard. • Social Media Vocab (Keywords) — Paste posts from social feeds or articles to learn real modern slang. • Audio Dictation — Listen to natural pronunciation, type what you hear, and reveal blurred text letter by letter. • Verb Conjugations — Instant table for all persons and tenses in one tap. • Smart Flashcards — Spaced repetition system tailored to your memory without tedious cramming. • Habit Tracker — 365-day activity heatmap and streak counter to stay consistent. 7 LANGUAGES: French, English, Spanish, German, Italian, Portuguese, and Russian. 100% OFFLINE & PRIVATE: The AI model is downloaded once and runs directly on your device’s chip with zero cloud and zero servers. Your data never leaves your device. Optional cloud sync between your Apple devices is available. TRANSPARENT PRICING: Your personal vocabulary folders and flashcard training are free forever. A subscription unlocks unlimited access to on-device AI features.

About

Lex Quest DE

Read full description

Learn German faster with LexQuest DE — a fun, game-based way to build vocabulary using flashcards, quizzes, and mini-games. Whether you’re a beginner or intermediate German learner or just advancing your skills, LexQuest DE helps you retain vocabulary, track progress, and stay motivated through interactive practice. LexQuest DE combines proven memory techniques with game-based learning to make German vocabulary easier to learn, easier to remember, and more engaging every day. Learn by Doing Flashcards for German Vocabulary
--Practice German words with interactive flashcards designed for fast daily learning. Audio and visual cues help reinforce memory and improve recall. Multiple-Choice Quizzes
--Test your knowledge with quick quizzes that reveal weak areas and strengthen long-term retention through active recall. Mini-Games for Active Learning--
Turn study sessions into gameplay. Improve speed, accuracy, and memory while learning German vocabulary. Personalize Your Learning Custom Decks & Word Lists
—Create your own decks or study by category. Focus only on the German vocabulary you actually want to learn. Favorite Cards
--Save important words and build a personal review list for quick repetition anytime. Track Your Progress Word Mastery & Assessment Scores
--See exactly how well you know each word with clear mastery tracking and progress feedback. Learning Progression
--Stay motivated by watching your German vocabulary improve over time. Premium Upgrade
 Unlock spaced repetition with LexQuest Premium to review words at the right time for long-term retention. Premium also includes: * All word lists unlocked * All mini-games available * Unlimited favorites * Full custom deck creation Who LexQuest DE Is for: * Beginner to intermediate German learners * Students preparing for school or travel * Self-learners who prefer interactive study * Anyone who wants structured, game-based language learning Why LexQuest DE? Everything you need to build German vocabulary in one app: * Flashcards, quizzes, and mini-games * Solid vocabulary builder * Usage of vocabulary to train articles, conjugations, and cases * Personalized decks and favorites * Smart progress tracking * Optional premium tools for advanced learning Whether you learn through flashcards, quizzes, or through games, this app has you covered. Start building the concrete foundation of all language learning: a solid vocabulary and make real, measurable progress with LexQuest DE.

Screenshots

OuiVerb4 screens
Lex Quest DE4 screens

Verdict

The call

OuiVerb and Lex Quest DE are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. OuiVerb sells 1 in-app purchase, starting at $8.99 per month and Lex Quest DE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
OuiVerb versus Lex Quest DE: the parameters behind the verdict, then further details
ParameterOuiVerbLex Quest DE
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size109 MB69 MB
Age rating9+4+
DeveloperVadim KashinCognisolum LLC

In-app purchases

1 purchases

OuiVerb

Subscriptions1
  • OuiVerb Pro7 Days trial$8.991 Month
1 purchases

Lex Quest DE

One-time1
  • Lex Quest DE Premium$9.99

Questions

Is OuiVerb free?
OuiVerb is free to download, with in-app purchases available.
Is Lex Quest DE free?
Lex Quest DE is free to download, with in-app purchases available.
Do OuiVerb or Lex Quest DE have ads?
Neither OuiVerb nor Lex Quest DE shows ads.

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