Comparison

German Sentence Builder vs Learn German Fast

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

Head to head
About

German Sentence Builder

Master German sentence structure and grammar through interactive, gamified exercises. Build sentences correctly, improve pronunciation with speech recognition, and learn vocabulary contextually from beginner to advanced levels.

Highlights
  • Gamified sentence construction
  • CEFR aligned content (A1-C2)
  • Advanced speech recognition
  • Topic-based vocabulary learning
  • Comprehensive grammar trainer
  • Interactive word order puzzles
Features
Read full description

STOP MEMORIZING ISOLATED WORDS. START SPEAKING REAL GERMAN. Are you tired of learning vocabulary lists but freezing up when you try to speak? Is German word order (die Wortstellung) confusing you? German Sentence Builder is the ultimate bridge between knowing words and speaking fluent sentences. Whether you are a complete beginner or an advanced learner, mastering German grammar and sentence structure is the key to fluency. Our interactive, gamified approach helps you assemble sentences correctly, naturally, and confidently. WHY GERMAN SENTENCE BUILDER? German is famous for its complex grammar. We make it simple. By focusing on sentence reconstruction, you learn contextually. You won’t just memorize that "Apfel" means "Apple"; you will learn how to use it in the Accusative case, where to place the verb, and how to form the perfect sentence. KEY FEATURES: GAMIFIED SENTENCE CONSTRUCTION Move away from boring textbooks. Drag, drop, and arrange words to solve puzzles. Learn the logic behind German syntax, verb conjugation, and word placement through addictive gameplay. FROM BEGINNER TO MASTERY (A1 – C2) Our content is strictly aligned with the CEFR (Common European Framework of Reference for Languages). • A1 & A2: Build a solid foundation with simple daily phrases. • B1 & B2: Tackle complex grammar, subordinate clauses, and intermediate vocabulary. • C1 & C2: Refine your nuance and fluency for professional or academic proficiency. ADVANCED SPEECH RECOGNITION Don't just read—speak! Test your pronunciation with our integrated speech technology. Practice your accent and get instant feedback to ensure you sound like a native speaker, not a robot. TOPIC-BASED VOCABULARY LEARNING Learn German through themes that actually matter. Topics include: • Travel & Transportation: Navigate trains, airports, and hotels in Germany, Austria, and Switzerland. • Daily Life: Ordering food, shopping, and hobbies. • Business German: Professional phrases for work and office settings. • Socializing: Dating, making friends, and casual conversation. MASTER GERMAN GRAMMAR This isn't just a phrasebook; it's a comprehensive grammar trainer. Through practice, you will intuitively learn: • The Cases: Nominative, Accusative, Dative, and Genitive. • Verb Conjugation: Regular, irregular, and separable verbs. • Tenses: Present, Past, Perfect, and Future tenses. • Word Order: TeKamolo, verb placement, and conjunctions. WHO IS THIS APP FOR? • Students: Perfect preparation for exams like Goethe-Zertifikat, Telc, or TestDaF. • Travelers: Survive and thrive on your next trip to Berlin, Munich, or Vienna. • Expats: Feel more confident speaking with colleagues and locals. • Language Enthusiasts: Add German to your polyglot portfolio. DOWNLOAD TODAY Join thousands of learners who are improving their German skills every day. Stop guessing and start building sentences with confidence. Download German Sentence Builder now and speak your first perfect German sentence in minutes! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Learn German Fast

Learn German through authentic video clips featuring native speakers. Interactive captions allow you to tap words for instant translation and save them as flashcards with context. Practice speaking and build sentences with daily lessons.

Highlights
  • Watch short video clips of native German speakers
  • Tap interactive captions for instant translations
  • Save words to flashcards with video context
  • Daily lessons for sentence building
  • Speaking practice with voice recognition
  • Illustrated stories for reading practice
  • Habit building with daily goals and streaks
Features
Read full description

Turn your scrolling habit into real listening practice. LEARN GERMAN BY WATCHING SHORT VIDEOS Rumi teaches you German the way you actually pick up a language: by watching real people speak it. Swipe through short clips of native speakers chatting, joking, and reacting. That's the German you hear on the street, at work, and on TV. Every clip comes with interactive captions you can tap. Don't know a word? Tap it. Want to remember it? Save it. Your saved words become flashcards with the exact moment you heard them, so you remember the voice and the context. HOW RUMI WORKS ► Scroll real videos – Short clips of native speakers, picked for your level. ► Tap to translate – Tap a word in the captions and see its meaning instantly. ► Flashcards from your clips – Every word you save comes back on a card, with the few seconds of video where it was said. ► Lessons from zero – Short daily lessons that get you building your own German sentences. ► Speak out loud – Every lesson ends with speaking practice. Say the sentences and Rumi listens to check that you got them right. ► Cozy stories – Short illustrated stories for your level, for when you'd rather read. ► Build the habit – Set a daily goal, keep your streak and learn alongside your friends. WHO RUMI IS FOR ► Complete beginners – Start from zero with the lessons and hear real German from day one. ► Learners who feel stuck – Studied for years but still freeze when someone talks to you? Real speed, real accents and speaking practice get you past it. ► People moving to Germany – For work, study or family, get ready for the German you'll actually hear. ► Busy people – A few minutes a day, on the train, in a queue or before bed. ► Travelers – Order food, ask for directions and chat with locals. WHY IT WORKS You didn't learn your first language from a grammar book. You heard it again and again, from real people in real situations. Rumi gives you that same exposure in short clips, then helps you keep the words and say them yourself. A little more sticks with every scroll. Download Rumi and start understanding real German today. SUBSCRIPTION INFORMATION Rumi offers auto-renewing subscriptions that unlock all videos, lessons, stories and features. New subscribers may be offered a free trial on the yearly plan. If you start a free trial, you won't be charged until it ends. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Prices are shown in the app and may vary by country. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lime-tern-cd6.notion.site/Privacy-Policy-Support-Goethe-Vocab-German-A1-A2-B1-212d5121533c808c910fd5924647134d

Screenshots

German Sentence Builder3 screens
Learn German Fast4 screens

Verdict

The call

The clearest difference is review sentiment: Learn German Fast at 100% against German Sentence Builder's 0%. Learn German Fast also leads on rating (4.4 vs 4.0) and ratings volume (40 vs 2). German Sentence Builder's advantage is iOS requirement (13.0 vs 16.4). On price, update cadence, ads and in-app purchases 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. German Sentence Builder sells 1 in-app purchase, starting at $4.99 per month and Learn German Fast sells 7 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Learn German Fast holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Learn German Fast has 40 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of German Sentence Builder's written reviews are positive against 100% of Learn German Fast's.

UpkeepUpdate frequency

German Sentence Builder ships an update every 10 days, Learn German Fast every 5 days. Both last shipped on November 8, 2026.

Scorecard4 real differences · 6 level
German Sentence Builder versus Learn German Fast: the parameters behind the verdict, then further details
ParameterGerman Sentence BuilderLearn German Fast
PriceFreeFree
Rating4.0 (2 ratings)4.4 (40 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings240 — better
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size38 MB151 MB
Age rating4+4+
DeveloperBetapilotUmar Javed

Customer experience

German Sentence Builder

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Learn German Fast

All ratings40 ratings
Positive80.0%
Neutral7.5%
Negative12.5%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

German Sentence Builder

Subscriptions1
  • Plus Monthly$4.991 Month
7 purchases

Learn German Fast

Subscriptions4
  • Monthly$7.991 Month
  • Weekly$12.997 Days
  • Exit Yearly Offer$27.001 Year
Show 1 more
  • Yearly7 Days trial$39.491 Year
One-time3
  • Lifetime Offer Discounted$9.99
  • Lifetime$12.99
  • Lifetime Pro$79.99

Questions

Is German Sentence Builder free?
German Sentence Builder is free to download, with in-app purchases available.
Is Learn German Fast free?
Learn German Fast is free to download, with in-app purchases available.
Which has better reviews, German Sentence Builder or Learn German Fast?
Learn German Fast is rated higher. German Sentence Builder averages 4.0 out of 5 from 2 ratings, while Learn German Fast averages 4.4 from 40 ratings.
Do German Sentence Builder or Learn German Fast have ads?
Neither German Sentence Builder nor Learn German Fast shows ads.
Which is updated more often, German Sentence Builder or Learn German Fast?
German Sentence Builder ships an update every 10 days, and Learn German Fast every 5 days. Most recently, German Sentence Builder was updated on November 8, 2026 and Learn German Fast on November 8, 2026.

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