Comparison

Fluent Duo vs TestGerman

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

Head to head
About

Fluent Duo

This app helps couples learn each other's language through short, daily voice recordings and corrections. It focuses on personal language use and mutual motivation, making learning engaging and effective for partners in long-distance relationships or mixed-language households.

Highlights
  • Daily voice note prompts
  • Partner voice recordings
  • One-tap reactions
  • Optional audio corrections
  • Shared learning streak
  • Personalized language learning
Features
Read full description

For couples who don't share a first language. Fluent Duo is built around one simple loop: you record a 30-second voice note in your partner's language. They listen, react, and send back a 15-second correction. That's the whole app. Tomorrow you do it again - even when you're not in the same room. HOW IT WORKS - Pair with your partner using a single invite code. No social feed, no strangers. - Every morning you both see the same prompt - small, personal, easy to answer in 30 seconds. - Record your voice note. Hear theirs. - React with one tap: loved it, cute-wrong, or "try again." - Optional: send back a 15-second correction so they can hear how it should sound. WHY COUPLES STICK WITH IT - You're learning the language they actually speak - their parents' dialect, their nicknames, the joke from their childhood. Not what's in a textbook. - Voice forces pronunciation. Text apps let you cheat. - Your partner is the most motivated teacher you'll ever have. They want to understand you. - 30 seconds is too short to skip, so you don't. - The streak is shared between the two of you, not against an app. BUILT FOR - Long-distance couples across time zones - Expats whose in-laws don't speak English - Mixed-language households at home - Anyone who tried Duolingo and quit at lesson 14 WHAT'S NOT INSIDE No leaderboards. No streaks shaming you in red. No chat with strangers. Just the two of you, getting closer in two languages. Available in English, Italian, French, Spanish, Portuguese, Japanese, Korean, Arabic and Hindi. Start with one voice note today. See where you both are in a month.

About

TestGerman

Features
Read full description

Prepare for your German exam with Test German — a smart practice app for A1, A2, B1 and B2 learners. Test German helps you practice German exam tasks, understand your mistakes and improve faster with instant AI feedback in your own language. Whether you are learning German for a visa, family reunification, integration, permanent residence, citizenship or better job opportunities, Test German gives you a structured way to prepare. With Test German, you can: • Practice A1, A2, B1 and B2 German exam tasks • Train with Goethe, telc and DTZ-style model tests • Access 10,000+ exam questions • Get instant feedback for writing and speaking • Understand grammar, sentence structure and vocabulary mistakes • Practice under real exam conditions • Track your progress in a personal dashboard • Improve step by step at your own pace Why Test German? German exams are important for many people building a future in Germany. But preparation can be confusing when you do not know exactly what to practice or why your answer is wrong. Test German gives you clear, direct feedback so you can understand your mistakes and improve with confidence. Instant AI feedback Practice writing and speaking tasks and receive feedback within seconds. See what needs to be corrected and learn how to improve your answer. Real exam-style practice Train with tasks designed around common German exam formats for A1, A2, B1 and B2 levels. Learn in your own language Complex grammar explanations are easier when they are clear. Test German helps you understand mistakes in a language that is easier for you. Built for real goals Test German is useful for learners preparing for: • A1 German exams • A2 German exams • B1 German exams • B2 German exams • Family reunification visa requirements • Integration and DTZ preparation • Permanent residence preparation • Citizenship language requirements • Everyday German communication • Career-related German improvement Learn smarter. Practice more clearly. Prepare with confidence. Download Test German and start your German exam preparation today. Disclaimer: Test German is an independent learning and exam preparation platform. It is not officially affiliated with Goethe-Institut, telc GmbH or any public examination authority.

Screenshots

Fluent Duo4 screens
TestGerman4 screens

Verdict

The call

The clearest difference is update cadence: TestGerman at every 9 days against Fluent Duo's every 3 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fluent Duo ships an update every 3 months, TestGerman every 9 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
Fluent Duo versus TestGerman: the parameters behind the verdict, then further details
ParameterFluent DuoTestGerman
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size34 MB82 MB
Age rating4+4+
DeveloperANIELLO DI POLITOTest German

In-app purchases

None

Fluent Duo

No in-app purchases

None

TestGerman

No in-app purchases

Questions

Is Fluent Duo free?
Fluent Duo is free to download, with no in-app purchases.
Is TestGerman free?
TestGerman is free to download, with no in-app purchases.
Do Fluent Duo or TestGerman have ads?
Neither Fluent Duo nor TestGerman shows ads.
Which is updated more often, Fluent Duo or TestGerman?
Fluent Duo ships an update every 3 months, and TestGerman every 9 days. Most recently, Fluent Duo was updated on October 31, 2026 and TestGerman on October 31, 2026.

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