
Practice spelling and mental math
Practice spelling in German or English and train mental arithmetic
With our learning apps, you can specifically improve your German or English spelling and train your mental arithmetic. Over 2,000 interactive exercises help children, teenagers, and adults learn to spell correctly, practice dictation, and sustainably improve their math skills. The apps are suitable for school, work, university, and everyday life.
The Correct Spelling App helps learners master English spelling in a structured and effective way. Practice common English spelling mistakes, improve your writing accuracy, and expand your English vocabulary through a variety of engaging exercises. Across 10 difficulty levels, learners develop their spelling skills using inspiring quotations and proverbs from different cultures and historical periods.
The app’s educational concept combines listening, spelling, and contextual application. Words are first pronounced aloud, then learners spell them correctly and use them in complete sentences.
The app is suitable for secondary school English learners as well as adults who want to improve their English spelling skills.
Mental arithmetic is an essential foundation for developing strong mathematical skills. It builds number sense, strengthens memory, and helps organize mathematical thinking.
The M3 Mental Math App provides structured training with a database of approximately 3,000 carefully designed mental arithmetic exercises across 10 progressive learning levels. The exercises range from simple addition, subtraction, and multiplication facts to more advanced three- and four-digit calculations covering all four basic arithmetic operations.
The app is suitable for primary school, lower and upper secondary education, as well as adults who want to strengthen their mental arithmetic skills.
The Richtig-Schreiben-App helps students and adults improve their German spelling skills in a structured and effective way. Across multiple difficulty levels, learners can practice German spelling using inspiring quotations and proverbs from different cultures and historical periods.
The app’s educational concept is based on an integrated learning approach. Words are first pronounced aloud, after which learners are asked to spell them correctly and use them in complete sentences.
The app offers a total of 10 difficulty levels, making it suitable for a wide range of learners. It is designed for students from Grade 3-13 as well as adults and learners of German as a second language (GSL).
Spelling exercises with 2,000+ common mistakes in English with the Correct Spelling App
Practice targeted exercises to identify and correct frequent spelling mistakes. Enhance your writing skills in English, whether for school, exams, or everyday communication.

A Beautiful Learning Experience
The Correct Spelling App offers effective spelling training through an integrative learning approach that combines listening, complete word writing, and meaningful sentence context. Featuring quotes and proverbs from Goethe, Schiller, Fontane, Kleist, and many other authors across cultures and eras, the app strengthens spelling, vocabulary, and memory. Short practice sessions, personalized error tracking, helpful explanations, and intelligent repetition algorithms ensure a long-term learning success.

Short Writing Lists for Effective Spelling Practice
For efficient spelling learning anytime and anywhere, the Correct Spelling App recommends short daily practice sessions of about ten minutes. Carefully designed spelling lists support in-depth learning, while increasing difficulty in words, quotes, and proverbs adapts to your growing skill level. Just one or two exercises per day, combined with a regular routine, can lead to a significant improvement in spelling in the long run.

Motivation Through Medals and Learning Rewards
The Correct Spelling App helps you improve your spelling and vocabulary with ten progressive difficulty levels. Earn medals for each completed level and track your progress with knowledge points for correct answers and learning points for correcting mistakes. Each level includes eight lessons with 320 practice words, making daily spelling practice fun and motivating.
Enhance your spelling skills with our Apps
In the pro version, all levels are unlocked. You can track progress with points and enjoy an ad-free learning experience.

Pro – monthly
1,99 €

Pro – annual
14,99 €

School license
small school (up to 300 pupils)/ large school (up to 800 pupils)
750 € / 990€
How the Correct Spelling App works
Discover how the Correct Spelling App helps you practice and improve the most common English spelling mistakes.

Step One: Download and launch the app
Open the Correct Spelling App and register using your email address and password.
Next, select your user group (student, adult, or non-native speaker) and rate your writing proficiency on a scale from very low to advanced. This information helps personalize your learning experience and ensures you are placed at the appropriate skill level for effective spelling practice.
Step 2: Practice regularly to improve your spelling
Practice regularly to improve your spelling skills in the long term. Consistent practice is essential for effective learning and lasting results.
That’s why the Correct Spelling App offers an engaging learning experience combined with clear learning objectives and intelligent training algorithms. This approach helps users strengthen their spelling accuracy efficiently and sustainably.
Step 3: Track Your Progress and Review Your Results
Check your results to accurately track your learning progress using statistical analysis. If necessary, lessons can be repeated as many times as needed to reinforce your understanding.



