Comparison

Grammatik Duell vs Math Experts

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

Head to head
About

Grammatik Duell

Practice German grammar and spelling through an engaging matching game. Choose from various grammatical areas and difficulty levels to improve your language skills. Compete against yourself or others in this fun, educational duel.

Highlights
  • German grammar and spelling practice
  • Matching game mechanics
  • Variable card pairs and player numbers
  • Adjustable difficulty levels
  • Read-aloud function
  • Focuses on grammatical areas
  • Reward system for motivation
Features
Read full description

+++ Dyslexia Quality Award Winner 2015 +++ This entertaining and educational matching game app helps you practice your German grammar and spelling in a fun way. Whether you need to brush up on parts of speech, conjugation or declination, tenses and types of sentences - no matter what you need, the various grammatical areas can be combined with each other and practiced. With one click, the appropriate themes are chosen, easy as pie, and you can start right away. Matching pairs must be found, either by purely assigning terms to the proper categories (intelligent = Adjektiv | Ich werde spielen = Futur 1) or as a concentration-enhancing matching game. THE GRAMMATIK DUELL HELPS YOU PRACTICE YOUR KNOWLEDGE IN A FUN WAY Both the number of card pairs and the number of players are, of course, variable. Depending on your wishes, the cards can be read aloud, and the length of time in which the cards are revealed is adjustable. The difficulty level of the app increases with the number of card pairs and the chosen area of grammar. It is aimed at all students who are not yet entirely comfortable in their use of grammatical terms or who want to practice for their next grammar lesson in a fun way. You can also work on improving your spelling. STRONG MOTIVATION TO LEARN GRAMMAR On your own in a race against time or against a challenging opponent - who will use the fewest number of moves to find the matching pairs? Who will collect the most stars and end up the winner in this grammatical duel? The beautiful visual presentation of the playing cards, the acoustic sounds of success, the pleasing voice that reads aloud, the game variations, the pedagogically sophisticated content and the strict limitations of only relevant content make this app a truly worthwhile learning aid. The Grammar Challenge makes learning grammar fun! PEDAGOGICAL BENEFITS OF THE APP: • Self-explanatory • Concentrates on the content without distractions • Motivates with a reward system • Practice mode • Boosts concentration skills • Selectable levels of difficulty • Selectable number of card pairs • Selectable read-aloud function • Selectable areas of grammar • “Assignable” game variations • Beautiful, relevant graphics • No in-app purchases • No online connection necessary • Learning psychology tested and approved TECHNICAL AND PEDAGOGICAL KNOW-HOW COME TOGETHER IN THE GRAMMATIK DUELL The idea for this app with regard to its content was created by licensed pedagogue Uta Reimann-Höhn (www.lernfoerderung.de), who has published numerous books as an expert on education and upbringing, and who has been the editor-in-chief of “Lernen und fördern mit Spaß!” (“Learn and Grow with Fun!”) since 2006. The idea was implemented by Jan Essig (www.janessig.com), a designer who has made a name for himself with his high-quality educational apps “Adventure Playground” and “Preschoolers ABC Playground” and has won numerous awards.

About

Math Experts

This app offers a distraction-free environment to practice various arithmetic operations, from basic math to advanced mental calculations. It provides customizable training options and multiple game modes to suit all ages and skill levels.

Highlights
  • Customizable operations and number ranges
  • Practice, Single Player, and Two Player modes
  • Supports addition, subtraction, multiplication, division, times tables, and square numbers
  • Ad-free and subscription-free experience
  • Adjustable difficulty and color themes
  • Suitable for kids, students, and adults
Read full description

Sharpen your mental math with Math Experts – a clean, customizable, and ad-free math training app for all ages. Practice arithmetic your way: no distractions, no subscriptions, just focused math training that you control. Train addition, subtraction, multiplication, division, times tables, and square numbers – from basic math to advanced mental arithmetic. WHY Math Experts? Full Control Over Your Training: Choose operations, number ranges, negative numbers, and difficulty to match your skill level. Multiple Game Modes: - Practice Mode: no timer, no pressure - Single Player: timed math challenges to improve speed - Two Player: compete on one device in fast-paced math duels From Basics to Advanced: Perfect for learning times tables, practicing square numbers, or improving mental math with negative numbers. Clean & Distraction-Free: No ads. No subscriptions. Just focused learning. Math Training for Everyone: - Kids: build confidence in arithmetic and times tables - Students: improve speed and accuracy for school - Adults: daily brain training and mental fitness Customizable Experience: Adjust settings, difficulty, and color themes to make math practice your own. Math Experts is your all-in-one math trainer for arithmetic practice, mental math, and brain training. Download now and improve your math skills every day.

Screenshots

Grammatik Duell4 screens
Math Experts4 screens

Verdict

The call

The clearest difference is review sentiment: Math Experts at 100% against Grammatik Duell's 25%. Grammatik Duell's advantage is price ($0.99 vs $4.99) and iOS requirement (12.0 vs 15.6). On update cadence, ads, in-app purchases and monetization model 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

Grammatik Duell costs $0.99 and Math Experts $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Grammatik Duell ships an update every 2 months, Math Experts every 6 weeks. The most recent releases landed on September 21, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 5 level
Grammatik Duell versus Math Experts: the parameters behind the verdict, then further details
ParameterGrammatik DuellMath Experts
Price$0.99 — better$4.99
Positive reviews25.0% of reviews100.0% of reviews — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size15 MB28 MB
Age rating4+4+
DeveloperJan EssigPATRICIA SAUER

Customer experience

Grammatik Duell

Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

Math Experts

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Grammatik Duell

No in-app purchases

None

Math Experts

No in-app purchases

Questions

Is Grammatik Duell free?
Grammatik Duell costs $0.99, with no in-app purchases.
Is Math Experts free?
Math Experts costs $4.99, with no in-app purchases.
Do Grammatik Duell or Math Experts have ads?
Neither Grammatik Duell nor Math Experts shows ads.
Which is updated more often, Grammatik Duell or Math Experts?
Grammatik Duell ships an update every 2 months, and Math Experts every 6 weeks. Most recently, Grammatik Duell was updated on September 21, 2026 and Math Experts on October 12, 2026.

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