Comparison

Blitz Academy vs Viobean

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

Head to head
About

Blitz Academy

Features
Read full description

We provide comprehensive courses and examinations to cater to major industrial sectors, including oil and gas, logistics, cyber security, construction, power, and automotive. Our courses are meticulously designed to impart extensive knowledge and a high degree of practical skills. At Blitz Academy, our training approach is predominantly practical-oriented, setting us apart in the training landscape.

About

Viobean

Prepare for German language exams with AI-powered practice that mirrors the official test format. Get instant feedback on speaking and writing, with detailed grammar explanations in your native language.

Highlights
  • AI-powered exam simulation
  • Practice all four language skills
  • AI evaluation for writing
  • AI speaking partner for oral exams
  • Grammar explanations in 24 languages
  • Progress tracking
  • telc B1 & B2 exam focus
Features
Read full description

Prepare for the telc A1, A2, B1 & B2 Deutsch Zertifikat — not random practice. Viobean is AI-powered exam prep built around the telc exam format. Every task, every scoring dimension, every exam section mirrors what you'll actually face on exam day. All four skills — plus Sprachbausteine — in authentic exam structure. telc A1, A2, B1 & B2 EXAM FORMAT Every Modelltest, every Übungstest, every Prüfungstraining session follows the real exam: • Leseverstehen — exam-authentic reading passages • Hörverstehen — listening at exam tempo • Sprachbausteine — the grammar section telc actually tests • Schriftlicher Ausdruck — written tasks with AI evaluation • Mündliche Prüfung — all three Teile (Teil 1, 2, 3) with a conversational AI partner AI EXPLAINS WHY — IN YOUR LANGUAGE Every answer comes with a detailed grammar explanation, not just "right" or "wrong." Our AI teaches you the rule behind the answer so the next similar question gets easier. Available in 24 languages — read explanations in your native tongue while you practice in German. AI WRITING EVALUATION Submit your letters and essays and get structured feedback in seconds: grammar, vocabulary range, register, coherence, task fulfillment — the same dimensions a human rater scores. Rewrite, resubmit, watch your scores improve. AI SPEAKING — REAL-TIME CONVERSATION Have an actual German conversation with an AI partner that plays the examiner role: • Teil 1 — introduce yourself and answer follow-ups • Teil 2 — discuss a topic with a partner • Teil 3 — plan something together You get transcripts, turn-by-turn feedback on pronunciation, grammar, fluency, and task completion. No tutor scheduling, no exam-day nerves — practice until you're ready. EXAMS SUPPORTED • telc A1 — fully supported • telc A2 — fully supported • telc B1 — fully supported • telc B2 — fully supported • More exams coming soon WHY PEOPLE USE VIOBEAN • telc B1 for Einbürgerung, Niederlassungserlaubnis, or Sprachnachweis • telc B2 for university admission or professional qualification • Integrationskurs students adding practice outside class • Self-learners doing Prüfungsvorbereitung without a tutor • Returning learners brushing up before exam day TRACK YOUR PROGRESS Practice history, past recordings, written submissions, and per-section scores all stay with you. See what's improved, identify weak spots, go into the exam knowing where you stand. PRIVACY Your voice recordings and written answers are evaluated by AI — never used to train AI models. Delete your account and all associated data from inside the app any time. MADE IN BERLIN Built by a small Berlin-based team working with a German language expert advisor. Every task mirrors the telc exam format; every AI explanation and evaluation is grounded in the grammar and scoring dimensions an examiner cares about. Email support@viobean.com any time — we reply within two business days. Terms of Use: https://viobean.com/terms Privacy Policy: https://viobean.com/privacy

Screenshots

Blitz Academy3 screens
Viobean4 screens

Verdict

The call

The clearest difference is in-app purchases: Blitz Academy at none against Viobean's 7. Blitz Academy also leads on iOS requirement (13.0 vs 15.1). Viobean's advantage is update cadence (every 8 days vs every 3 months). On price, ads 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. Viobean sells 7 in-app purchases, starting at $14.99 per month. Blitz Academy asks for nothing beyond the download.

UpkeepUpdate frequency

Blitz Academy ships an update every 3 months, Viobean every 8 days. The most recent releases landed on October 5, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Blitz Academy versus Viobean: the parameters behind the verdict, then further details
ParameterBlitz AcademyViobean
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size48 MB65 MB
Age rating17+4+
DeveloperGLOBOSOFT TECHNOLOGY SOLUTIONSViobean

In-app purchases

None

Blitz Academy

No in-app purchases

7 purchases

Viobean

Subscriptions6
  • Viobean Pro Monthly$14.991 Month
  • Viobean Pro Max Monthly$24.991 Month
  • Viobean Pro 3 months$34.993 Months
Show 3 more
  • Viobean Pro Max 3 months$59.993 Months
  • Viobean Pro Annual$119.991 Year
  • Viobean Pro Max Annual$199.991 Year
One-time1
  • 100 extra credits$10.00

Questions

Is Blitz Academy free?
Blitz Academy is free to download, with no in-app purchases.
Is Viobean free?
Viobean is free to download, with in-app purchases available.
Do Blitz Academy or Viobean have ads?
Neither Blitz Academy nor Viobean shows ads.
Which is updated more often, Blitz Academy or Viobean?
Blitz Academy ships an update every 3 months, and Viobean every 8 days. Most recently, Blitz Academy was updated on October 5, 2026 and Viobean on November 5, 2026.

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