For Travellers, Career Changers, Heritage Speakers & Lifelong Learners

12 Languages.
One Subscription.

Spanish, French, German, Italian, Portuguese, Russian, Arabic, Mandarin, Japanese, Korean, Hindi, and Turkish — all four CEFR skills graded by AI on the AVIAN adaptive engine.
In development.

$29/mo

All 12 languages. One subscription. Pricing finalized at launch.

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Watch

See It Work.

Adaptive practice, simulations, and test-day rehearsal, in just over a minute.

Read the words on screen
  1. It studies you while you study.
  2. AccelaStudy® AI. Maps what you know. Closes the gaps.
  3. Adaptive practice: every answer counts. Your next question depends on this one.
  4. Instant feedback: misses become lessons. Every miss points to the fix.
  5. Powered by AVIAN, the adaptive learning engine. Patent pending: 49 patent filings, 302 inventions, 1,158 claims. Counts include 23 U.S. patent applications being filed now.
  6. Context-aware assistant: ask anything. It knows your course, your gaps, and your streak.
  7. Activity formats: 80 ways to practice.
  8. Flagship simulations: don’t just read it. Run it. 2,000+ simulations, 1,000+ of them free.
  9. Exam simulator: rehearse test day.
  10. Readiness forecast: 76%. Know when you’re ready. Illustrative learner; forecasts are estimates, not guarantees.
  11. Autopilot: your plan, on autopilot. Goal, date, daily minutes. Done.
  12. Afterburner: open the throttle. One session. Every course.
  13. Learning insights: see how you learn.
  14. Fix these gaps. Knowledge carries over. A roadmap for every course. 2,100+ labs.
  15. 400+ courses. 1.5M+ practice questions. 2,100+ hands-on labs. 150+ courses, free. One engine. Every product.
  16. Learn what you don’t know. Skip what you do.
  17. AccelaStudy® AI. Start free at accelastudy.ai.

Exam, certification, and provider names are trademarks of their respective owners, who do not endorse AccelaStudy AI. AccelaStudy is a registered trademark of Renkara Media Group, Inc. Screens show an illustrative learner.

Coming soon to iOS

A little time.
A step forward.

AccelaStudy AI Languages is coming soon as an app for iOS.
A study reminder at the right moment, a quick review on the go, and room to go deeper when you have it.

See the iOS preview

What Makes AccelaStudy® AI Languages Different

Twelve languages, all four CEFR skills, one adaptive engine that learns what you already know and skips it.

All Four CEFR Skills, Graded

Listening, reading, writing, and speaking — each scored against the official CEFR rubrics (A1 through C1 at launch, C2 in Phase 2). No competitor grades all four. Most don’t even attempt writing or speaking.

One Subscription, All 12 Languages

$29/mo unlocks Spanish, French, German, Italian, Portuguese, Russian, Arabic, Mandarin, Japanese, Korean, Hindi, and Turkish. Switch between them anytime — your adaptive profile carries vocabulary and grammar mastery across language families.

Cross-Language Knowledge Transfer

Mastered Spanish preterite? When you start Italian, the engine credits you for the related concepts (passato remoto, periphrastic past) automatically. Romance, Germanic, Slavic, and Indic families each transfer ~30–60% of their core grammar.

AI Speaking Scoring with Tone & Pitch

Per-language phoneme alignment, tone evaluation for Mandarin, pitch-accent for Japanese, vowel-harmony for Turkish, stress placement for Russian. Real pronunciation feedback, not just “repeat after me.”

Authentic Listening Passages

Synthesized native-speaker audio across multiple voices and regional variants — LatAm vs Iberian Spanish, Brazilian vs European Portuguese, PRC vs Taiwanese Mandarin. Adaptive difficulty by CEFR level.

CEFR Readiness Prediction

Predicted band/level per language with confidence intervals. Know exactly when you’re ready for the DELE, DELF, Goethe-Zertifikat, JLPT, HSK, TOPIK, or whichever exam you’re targeting before you pay the fee.

How It Works

Six Principles That Make Adaptive Learning Actually Work

No streak gamification.
No same-content-for-everyone curriculum.
Just an engine that knows where you are.

01

Your Knowledge, Mapped

The engine builds a real-time map of what you know at the concept level — vocabulary, conjugations, cases, tones, scripts, sociolinguistic register. Not chapters. Not modules. Individual concepts.

02

The Right Activity at the Right Time

Every question is chosen to teach you the most in the least time. Conjugation drill, sentence reordering, listening dictation, oral role-play — matched to your gaps.

03

Root-Cause Diagnosis

Wrong answer on a German dative case? The engine traces it to the prerequisite you're actually missing — not just “review cases.”

04

Autopilot Study Planning

Set your target CEFR level and daily time. The system builds your plan, adapts when life gets in the way, and tells you when you're ready for a real exam.

05

Cross-Language Knowledge Transfer

Pass Spanish A2? Start Italian A2 with credit for the ~60% of concepts that transfer. Romance, Germanic, Slavic, and Indic families each share substantial structure.

06

Every Practice Test Is Unique

Practice exams are dynamically composed across the full CEFR rubric. You never see the same test twice. No memorization, just real reasoning practice.

Pricing

One Subscription.
Twelve Languages.

Cheaper than Duolingo Family Plan, includes all CEFR skills Duolingo doesn’t even attempt.

Monthly

$29/mo

Pay as you go. Cancel anytime from your account.

  • All 12 languages — Spanish, French, German, Italian, Portuguese, Russian, Arabic, Mandarin, Japanese, Korean, Hindi, Turkish
  • All four CEFR skills graded by AI (listening, reading, writing, speaking)
  • Per-language pronunciation scoring with tones (Mandarin), pitch-accent (Japanese), vowel harmony (Turkish), stress (Russian)
  • Native-speaker TTS in regional variants — LatAm vs. Iberian, BR vs. PT, PRC vs. Taiwan
  • Cross-language knowledge transfer (Spanish → Italian, German → Russian cases, Mandarin Hanzi → Japanese Kanji)
  • CEFR readiness prediction for DELE, DELF, Goethe-Zertifikat, CILS, JLPT, HSK, TOPIK, and more
  • Cultural notes module covering register, formality, taboos, and regional variation
  • Autopilot adaptive study planning
  • Cancel anytime
Join the Waitlist
SAVE 22%

Annual

$23/mo

$276 billed annually — save $72 vs. monthly

  • Everything in Monthly
  • 22% off the monthly price
  • Lock your rate for a full year of language study
  • One billing cycle — no surprise charges
Join the Waitlist

7-day free trial at launch, Credit card required

7-day free trial on every plan when AccelaStudy AI Languages launches. Credit card required to start. Your card is charged your plan's price when the trial ends unless you cancel first.

Languages Covered

12 Languages at Launch · 5 Writing Systems

Every CEFR level A1 through C1 at launch.
C2 mastery in Phase 2.

Spanish

FSI Class I

Español

  • Variant: LatAm neutral (Iberian variant in Phase 2)
  • Script: Latin
  • Reach: 500M speakers

French

FSI Class I

Français

  • Variant: Metropolitan
  • Script: Latin
  • Reach: 300M speakers

German

FSI Class II

Deutsch

  • Variant: Standard (Hochdeutsch)
  • Script: Latin
  • Reach: 135M speakers

Italian

FSI Class I

Italiano

  • Variant: Standard
  • Script: Latin
  • Reach: 85M speakers

Portuguese

FSI Class I

Português

  • Variant: Brazilian (European variant in Phase 2)
  • Script: Latin
  • Reach: 265M speakers

Russian

FSI Class III

Русский

  • Variant: Standard
  • Script: Cyrillic
  • Reach: 260M speakers

Arabic

FSI Class IV

العربية

  • Variant: Modern Standard (MSA)
  • Script: Arabic (RTL)
  • Reach: 370M speakers

Mandarin

FSI Class IV

中文

  • Variant: Simplified, PRC variant
  • Script: Hanzi (CJK)
  • Reach: 1.1B speakers

Japanese

FSI Class IV

日本語

  • Variant: Standard
  • Script: Kanji + Hiragana + Katakana
  • Reach: 125M speakers

Korean

FSI Class IV

한국어

  • Variant: Standard (Seoul)
  • Script: Hangul
  • Reach: 80M speakers

Hindi

FSI Class III

हिन्दी

  • Variant: Standard
  • Script: Devanagari
  • Reach: 600M speakers

Turkish

FSI Class III

Türkçe

  • Variant: Standard (Istanbul)
  • Script: Latin (modified)
  • Reach: 85M speakers

Phase 2 adds Dutch, Polish, Greek, Vietnamese, Thai, Indonesian, Hebrew, and Tagalog — included in the same $29/mo subscription at no extra cost.

How AccelaStudy® AI Languages Compares

Every other major language app charges per language.
We charge once for the whole catalog — and ship features Duolingo and Babbel don’t even attempt.

AccelaStudy® AI Languages

Price
$29/mo for ALL 12 languages
Adaptive at concept level
Yes
AI writing scoring (CEFR rubric)
Yes — point by point
AI speaking scoring with tone & pitch
Yes
Cross-language knowledge transfer
Yes
Cultural notes module
Yes
CEFR readiness prediction
Yes — per real exam
Multi-script support (Hanzi, Hangul, Devanagari, Arabic, Cyrillic)
Yes
Cancel anytime
Yes

Duolingo Super

Price
$14/mo each
Adaptive at concept level
No
AI writing scoring (CEFR rubric)
No
AI speaking scoring with tone & pitch
Repeat-after-me only
Cross-language knowledge transfer
No
Cultural notes module
No
CEFR readiness prediction
No
Multi-script support (Hanzi, Hangul, Devanagari, Arabic, Cyrillic)
Limited
Cancel anytime
Yes

Babbel

Price
$13/mo each
Adaptive at concept level
No
AI writing scoring (CEFR rubric)
No
AI speaking scoring with tone & pitch
Repeat-after-me only
Cross-language knowledge transfer
No
Cultural notes module
Limited
CEFR readiness prediction
No
Multi-script support (Hanzi, Hangul, Devanagari, Arabic, Cyrillic)
Limited
Cancel anytime
Yes

Pimsleur

Price
$20/mo each
Adaptive at concept level
No
AI writing scoring (CEFR rubric)
No
AI speaking scoring with tone & pitch
Repeat-after-me only
Cross-language knowledge transfer
No
Cultural notes module
No
CEFR readiness prediction
No
Multi-script support (Hanzi, Hangul, Devanagari, Arabic, Cyrillic)
n/a (audio only)
Cancel anytime
Yes

Rosetta Stone

Price
$14/mo each
Adaptive at concept level
No
AI writing scoring (CEFR rubric)
No
AI speaking scoring with tone & pitch
Limited
Cross-language knowledge transfer
No
Cultural notes module
No
CEFR readiness prediction
No
Multi-script support (Hanzi, Hangul, Devanagari, Arabic, Cyrillic)
Limited
Cancel anytime
Yes

Duolingo, Babbel, Pimsleur, and Rosetta Stone are trademarks of their respective owners; mentioned here for comparison purposes.

Common Questions

When can I sign up?

When subscriptions open. Join the waitlist and we’ll email you the moment they do.

Does $29/mo really unlock all 12 languages?

Yes. One subscription, all of them. No per-language fees, no “premium” tier upsell, no surprise charges. Switch between languages anytime.

How is this different from Duolingo or Babbel?

Duolingo and Babbel charge per language ($13–$14/mo each) and don’t grade writing or speaking. We grade all four CEFR skills with AI rubrics, transfer knowledge across language families (Spanish → Italian, etc.), and charge once for the entire catalog.

How accurate is the speaking scoring?

Per-language phoneme alignment + tone evaluation for Mandarin, pitch-accent for Japanese, vowel-harmony for Turkish, stress for Russian. Each language uses native-speaker reference distributions calibrated against CEFR speaking descriptors. Calibration data published alongside the product.

Will it prepare me for a real exam like DELE or JLPT?

Yes. AccelaStudy AI Languages includes CEFR readiness prediction for the major exams — DELE (Spanish), DELF/DALF (French), Goethe-Zertifikat (German), CILS (Italian), CELPE-Bras (Portuguese), TORFL (Russian), HSK (Mandarin), JLPT (Japanese), TOPIK (Korean), and others. The engine tells you when your projected pass probability hits 90%.

Which Spanish/Portuguese/Mandarin variant ships at launch?

Spanish: Latin American neutral (Iberian in Phase 2). Portuguese: Brazilian (European in Phase 2). Mandarin: Simplified PRC (Traditional Taiwanese in Phase 2). Arabic: Modern Standard (MSA only at launch; Egyptian, Levantine, Gulf, and Maghrebi dialects in Phase 2).

Are there free courses?

Free courses on AccelaStudy AI are at accelastudy.ai — programming, DevOps, computer science, data science, plus other academic subjects. World-language courses are paid; the AI-graded speaking, writing, and tone evaluation are compute-intensive.

Does the subscription cover phase-2 languages too?

Yes. When Dutch, Polish, Greek, Vietnamese, Thai, Indonesian, Hebrew, and Tagalog ship in Phase 2, they’re automatically included for active subscribers at no extra cost.

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Twelve-language adaptive learning is in development.
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In development.

Twelve languages, all four CEFR skills, one subscription.
Adaptive intelligence that no language app has shipped before.

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Trademark Notice

DELE® is a registered trademark of Instituto Cervantes. Instituto Cervantes does not endorse this product.

DELF® / DALF® are registered trademarks of France Éducation international. France Éducation international does not endorse this product.

Goethe-Zertifikat® is a registered trademark of Goethe-Institut. Goethe-Institut does not endorse this product.

JLPT® (Japanese-Language Proficiency Test) is administered by the Japan Foundation and Japan Educational Exchanges and Services. Neither endorses this product.

HSK® (Hanyu Shuiping Kaoshi) is administered by the Center for Language Education and Cooperation. The Center does not endorse this product.

TOPIK® is administered by the National Institute for International Education. NIIED does not endorse this product.

IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used by Apple Inc. under license.

AccelaStudy® and Renkara® are registered trademarks of Renkara Media Group, Inc. All third-party marks are the property of their respective owners and are used for nominative identification only.