Available
LANGUAGE LEARNING
French Mastery Trainer
A dedicated space for developing your French skills, from everyday communication to advanced proficiency.
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TESTERS WANTED · ANDROID · GOOGLE PLAY
Get 1 month free.
Get 1 month free.
Become a tester!
Help us launch all 5 Masterivo apps on Google Play. Every tester gets 14 days of full access from sign-up – and if you are among the first 20 testers of an app, one more full month free from 19 Nov.
Limited! Only the first 20 testers per app get the free month – once an app is full, its free month is gone.
- 1 month free – for the first 20 testers per app. You choose the app that fits you best.
- Test all 5 apps – English, German, French and 2 bookkeeping apps. You get to know every app before everyone else.
- Sign-up takes about 3 minutes – same login as in the web app
- Your feedback counts – you help shape every app
Best: test all 5 apps!
Every app needs enough testers before it can go live on Google Play. The more apps you test, the more you help – and the more you get to try for free.
Become a tester nowSimple step-by-step guide with all buttons
Join the tester group
With the same Google account as in your Play Store. Once is enough for all apps.
Join the groupAccept the test and install – best for all 5 apps
Tap an app, then “Become a tester” and install it. Ideally repeat this for all 5 apps – each takes only a minute.
Stay 14 days – get your free month
Keep the app installed, open it a few times a week and tell us what you think. Your 14 days start with your own sign-up – not only once 12 testers are reached. Google releases an app once at least 12 testers have each stayed 14 days in a row.
- Android only, not iPhone. Join the group first, otherwise the test links won’t work.
DIGITAL LEARNING ACADEMY
Learn with purpose.
Master with confidence.
Master new skills. At your own pace.
Smart, focused practice for the skills that matter to you: English, French and German, plus bookkeeping – and more to come.
How much you save compared with exam preparation courses
Accountingaround 90 % lessCourse: 390–570 €Masterivo: 29,70 €
Languagesaround 70 % lessCourse: 180–390 €Masterivo: 44,90 €
Typical exam preparation courseMasterivo: exam package (3 months) or 3 month passes of FiBu to go
Typical prices in Germany from our own research, as of November 2026: preparation courses for Cambridge, DELF and Goethe exams and for commercial accounting (in person or online); exam fees extra. The percentage uses the lowest course price. No live lessons with a teacher.
✦Practice with purpose
Learn in contextIllustrative exercise
ENGLISH · GRAMMAR
If I _____ more time, I’d practise every day.
hadCorrect answer
See the full context:
If I had more time, I’d practise every day.
If I had more time, I’d practise every day.
Understand, don't just memorise.
↗Small steps. Real progress.
WHAT WOULD YOU LIKE TO DO?Learn a language •Practise bookkeeping •Controlling soon•Professional skills soon
THE MASTERIVO FAMILYOne place.
One place.
Many possibilities.
Different goals call for different tools. Discover specialised learning apps — all built around meaningful practice.
Now open
LANGUAGE LEARNING
English
Mastery Trainer.
Build confidence in English with guided practice, clear feedback and learning activities designed around your level.
MORE LEARNING APPSTry every app for free
Free placement test
Available
LANGUAGE LEARNING
German Mastery Trainer
Structured German practice that supports understanding, confidence and steady language growth.
Learn more
Watch the 1-minute video
Available
BUSINESS & FINANCE
FiBu to go
Practical bookkeeping training for learners who want to understand financial accounting and apply what they learn.
Learn more
New since 9 Nov 2026: explanations and interface also in English and French.
Ideal for: pupils, students and retrainees learning bookkeeping with the German industrial chart of accounts (IKR).
Watch the video
Available
BUSINESS & FINANCE
FiBu für Büromanager
Accounting practice created for office management: understand everyday transactions and build confidence with the basics.
Learn more
New since 9 Nov 2026: explanations and interface also in English and French.
Ideal for: trainees and retrainees in office management (Kaufleute für Büromanagement) preparing for vocational school and the IHK exam.
Watch the videoWatch the app videos (5 short screen recordings, narrated by an AI voice, with subtitles)
English Mastery Trainer in one minute
Free placement test without sign-up, your result, a sample exercise with instant marking, the error vocabulary and the phone layout.
French Mastery Trainer in one minute
Real screen recording: free placement test and an exercise with instant feedback. Narrated by an AI voice, with subtitles.
German Mastery Trainer in one minute
Real screen recording: free placement test and an exercise with instant feedback. Narrated by an AI voice, with subtitles.
FiBu to go in 80 seconds
Real screen recording (in German): the short introduction, the free sample exercise with a booking entry and instant feedback, the placement test and the exam view. Narrated by an AI voice, with subtitles.
FiBu für Büromanager in under three minutes
Real screen recording (in German): getting started, the free placement test with a booking entry and its evaluation, the free sample exercise and the exam view. Narrated by an AI voice, with subtitles.
ACCOUNTING APPS · FIBU TO GO · FIBU FÜR BÜROMANAGER
Pay once. No subscription.
Placement test and a sample exercise are free, without payment details. After that you buy a pass that ends automatically – no cancellation needed.
FiBu to go
For pupils, students and retrainees (IKR, four bookkeeping courses).
Week pass7 days · one-off
4,90 €
Month pass1 month · one-off
9,90 €
Optional: test everything for 1 day for free first. Payment method required; unless you cancel within 24 hours, one month pass (9,90 €) is charged once and nothing renews.
FiBu für Büromanager
For trainees and retrainees in office management (IHK final exam).
Week pass7 days · one-off
5,90 €
Month pass1 month · one-off
11,90 €
Optional: test everything for 1 day for free first. Payment method required; unless you cancel within 24 hours, one month pass (11,90 €) is charged once and nothing renews.
Prices incl. VAT, one-off payment via our payment partner Dodo Payments. For the 1-day test, Dodo’s payment page shows “then … €/month” for technical reasons; the app ends the subscription after the one charge. Signed in on one device at a time.
LANGUAGE TRAINERS · ENGLISH · FRENCH · GERMANTry it free.
Try it free.
Choose your plan.
Start with the free placement test and a sample exercise – no account, no payment details. Then pick the plan that suits your goal.
Free: placement test and sample exercise
Find out your level (A1–C2) and try AI-checked exercises with instant automatic feedback. No account, no payment details.
7 days of full access for free – with a payment method
Every plan can start with a 7-day free trial (once per person). You enter a payment method at the start; if you do not cancel before the 7 days are over, your plan is charged automatically and then renews. You get a reminder e-mail about 24 hours before. During the trial you have up to 5 AI corrections a day.
Monthly
19,90 € per month
All levels and skills, AI feedback on writing and speaking with the largest monthly allowance. Renews monthly, cancel at any time.
Yearly
119 € per year, paid in advance
equals 9,92 € a month
238,80 € at the monthly price – you save 50 %
The best value for steady progress. Renews yearly; cancellation rules are in the app’s terms.
Exam package
44,90 € every 3 months
59,70 € at the monthly price – you save 25 %
Three months of focused exam preparation with all levels and exercises, billed every 3 months.
AI feedback has monthly allowances. All plans include every level and exercise. How many AI corrections of writing, speaking tasks and conversations you get each month depends on the app and the plan: the monthly plan has the largest monthly allowance, the exam package and the yearly plan smaller ones.
Show the AI allowances per month
| App | Monthly | Exam package | Yearly |
|---|---|---|---|
| English | 30 / 20 / 11 | 22 / 14 / 8 | 16 / 10 / 5 |
| French | 30 / 20 / 11 | 22 / 14 / 8 | 16 / 10 / 5 |
| German | 30 / 20 / 11 | 25 / 16 / 7 | 18 / 12 / 4 |
Per month: writing corrections / speaking corrections / conversations, as of 4 November 2026. The English and German Mastery Trainer also have daily limits. Binding are the plan details in the app and its terms: English · French · German.
At least around 70 % less than a typical exam preparation course
Exam preparation course (in person or online)180–390 €
Exam package, 3 months44,90 €
Basis: typical prices of Cambridge, DELF and Goethe preparation courses in Germany from our own research, November 2026 (about 180–390 € per course depending on language, level and format; exam fees extra), compared with one exam package of 3 months. The percentage uses the lowest course price. The app pages compare per language and therefore show other values (English around 70 %, French and German around 80 %). Masterivo offers no live lessons with a teacher.
Book now in your app:English Mastery TrainerFrench Mastery TrainerGerman Mastery TrainerHow buying works, step by step
Prices incl. VAT, same prices for English, French and German. You book inside the app – no account needed beforehand, it is created with your purchase. Payment, invoice and VAT are handled by our payment partner Dodo Payments.
Prices incl. VAT. Booking opens with the paid version; until then access is free with an access code. Same prices for English, French and German.
ACCOUNTING APPSWhich accounting app
Which accounting app
is right for you?
Both apps teach bookkeeping with real business transactions and instant feedback. The difference: FiBu to go is the open entry to the basics of financial accounting; FiBu für Büromanager follows the official curriculum of the office management training (Kaufleute für Büromanagement).
Show more
FiBu to go
- Made for
- People who are not in a training or retraining programme: you are about to start one, not sure yet, or simply want to learn the basics of financial accounting, independent of any training or retraining.
- Languages
- Since 9 Nov 2026 also usable in English and French (explanations and interface). The content stays German bookkeeping (IKR): technical terms remain German and are explained in your language; amounts use the German format (1.500,00 €).
- Content
- 37 lessons in four bookkeeping courses using the industrial chart of accounts (IKR): the basics, with journal entry trainer and mock exams.
- Free
- Placement test and a sample exercise – no sign-up, no payment details. Optional: 1-day test with a payment method (see prices).
- Why the price?
- The lower price: the entry to the basics, 37 lessons.
- Price
- Week pass 4,90 € one-off · 7 days
Month pass 9,90 € one-off · 1 month
No subscription: passes end automatically. Signed in on one device at a time.
FiBu für Büromanager
- Made for
- People in training or retraining as a Kauffrau / Kaufmann für Büromanagement (office management clerk) – or about to start – who want to work through and revise the bookkeeping topics of the official curriculum, up to the IHK final exam.
- Languages
- Since 9 Nov 2026 also usable in English and French (explanations and interface). The content stays German bookkeeping (IKR): technical terms remain German and are explained in your language; amounts use the German format (1.500,00 €).
- Content
- 126 lessons in 38 chapters using the industrial chart of accounts (IKR), following the bookkeeping topics of the curriculum: from journal entries, VAT and depreciation to year-end accounts, with exam simulation and flashcards.
- Free
- Placement test and a sample exercise – no sign-up, no payment details. Optional: 1-day test with a payment method (see prices).
- Why the price?
- The higher price: made for the training itself. 126 lessons in 38 chapters, built around the topics of the official curriculum, with exam simulation and flashcards for exam preparation.
- Price
- Week pass 5,90 € one-off · 7 days
Month pass 11,90 € one-off · 1 month
No subscription: passes end automatically. Signed in on one device at a time.
Prices incl. VAT for individual learners. Group licences are listed below.
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VOICES
What learners say
Selected voices from the short feedback inside our apps. The question only appears after 14 days of use; we publish an answer only with the person's consent and under the name they chose. We do not check whether the person bought a plan.
QUESTIONS & ANSWERSGood to know
Good to know
before you start.
Still have a question? Write to support@masterivo.com – we usually reply within 2 business days.
Can I try it for free?
Yes, in three different ways. Without account or payment details: the placement test and a sample exercise in every app. Language trainers, 7 days of full access: you need a payment method; unless you cancel within the 7 days, your plan is charged automatically and renews. Accounting apps, optional 1-day test: you need a payment method; unless you cancel within 24 hours, one month pass is charged once and nothing renews.
What happens after I buy?
Language trainers: your plan or free trial starts immediately. If you had no account yet, it is created with your purchase and you get an e-mail to set your password. Accounting apps: your pass starts immediately; FiBu to go shows you a personal access code, FiBu für Büromanager links your access to your e-mail address. You always receive a confirmation e-mail and learn in the browser on your computer, tablet or phone. You can install every app as an icon, also before buying (how it works).
How do I cancel?
Language trainers (subscription): with the “Cancel contracts here” button at the bottom of every language app, no sign-in needed; in the English and German Mastery Trainer also under Profile → My plan. A trial or first period ends at its end; after a 3- or 12-month plan has renewed, one month’s notice applies with a pro-rata refund. Accounting apps: passes end automatically, there is nothing to cancel; the 1-day test is cancelled within 24 hours with the “Verträge hier kündigen” button of the app. Withdrawal: as a consumer in the EU you have 14 days, with different rules per app: the language trainers refund less what you have already used (French Mastery Trainer contracts concluded before 4 November 2026: full refund), and in the accounting apps the right ends when you request immediate access and confirm this. Overview: terms & refunds.
What happens to my data?
Language trainers use an online account: you can download your data in the app and delete your account yourself. FiBu to go has no user account: your progress stays on your device, where you can download and delete it. FiBu für Büromanager keeps your progress on your device and your access on our server; in the app you can download your data and delete your account and data. Details are in the privacy policy of each app.
Which devices are supported?
Any current browser on Windows, macOS, Android or iOS. For speaking exercises you need a microphone.
Is the app accessible?
We work towards WCAG 2.1 AA: keyboard operation, screen-reader labels, adjustable text size and reduced motion. See our accessibility statement.
HELP & CONTACTNeed help?
Need help?
We are easy to reach.
Questions about an app, a problem with your access or feedback on an exercise – choose the way that suits you.
The fastest way for short questions. You write directly to Matthias.
+49 151 54873455E-mail support
Our AI assistant replies first, around the clock, and marks every answer as an AI reply. Write “human” (or the German „Mensch“) in your message and a person answers you directly. Cancellations, refunds, invoices and data protection are always handled by a person.
support@masterivo.comData protection
Our representative in the European Union (Art. 27 GDPR) is Joana Keller-Ladendorf, Eschweiler, Germany.
eu-vertreterin@masterivo.comA person usually replies within 2 business days.
HOW WE THINK ABOUT LEARNINGProgress is built
Progress is built
one practice at a time.
Masterivo is built around a simple belief: real learning happens when you actively use what you know, understand your mistakes and keep moving forward.
Made for curious, independent learners.
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01
Practice over passive reading
Turn information into skills through focused, hands-on exercises.
02
Understand the why
Useful explanations put answers and mistakes back into context.
03
Keep growing at your pace
Different starting points, personal goals, steady improvement.
THE IDEA BEHIND MASTERIVO
A growing home for skills worth mastering.
Masterivo brings specialised digital learning tools together under one roof: three language trainers and two accounting apps are available today, and we are building towards a broader academy for lifelong learners.
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ABOUT MEHi, I am Matthias.
Hi, I am Matthias.
The person behind Masterivo.
Certified paralegal specialist (geprüfter Rechtsfachwirt), trainer certified under the German AEVO and self-employed online lecturer. For several years I have taught accounting, cost accounting, controlling, business law and exam preparation in vocational courses for German training providers – fully online.
With Masterivo I combine this teaching experience with interactive learning apps. My conviction: you learn by understanding connections and applying knowledge regularly, not by memorising. If something is unclear, you can reach me personally.
More about me →