About Adducive

Adducive was founded by Brian R. Krause in 1997 and today its creative projects across media celebrate mathematics and language. Its debut publishing project was ahead of its time technologically and educationally. Today, “The Old-School Typewriter Algebra Workbook” continues that tradition with its unique, vintage approach. From its most recent app, the photo filter Typewriter FX, to the unique 3D word games Lexiblox and Lexatetrahedra, you can see Adducive‘s expertise in iOS app design and development. Also a leading mobile consultancy, Adducive delivers creativity and quality, exceeding expectations from major tech companies to nonprofits to start-ups worldwide, resulting in a track record of consistent referrals and repeat business.

About the author

Brian R. Krause is an MIT graduate with a passion for mathematics, technology and education. His teaching experience spans public middle and high schools in California and Arizona. Drawing on his internationally sought-after software design and engineering expertise, his innovative methods include using 3D modeling software to bring geometry to life and developing beautiful and engaging paper worksheets when students need them.