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Testimonial | TI89 - BLOG

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“Calculus Made Easy helps me better understand the process of solving equations, integrals and derivatives.”

Calculus Made Easy helps me better understand the process of solving equations, integrals and derivatives. It allows me to double check my work to ensure that I have the correct answer. It is a fantastic tool I highly recommend it for anyone taking a calculus course with a sub-par professor, or if you’re struggling with… (read more)

“Differential Equations Made Easy (TI-89) breaks down each step which really helps you understand the problem.

The Differential Equations Made Easy program saved me from hours of wasted studying. The program breaks down each step witch really helps you understand the problem. This also guarantees your answers are correct and gives you that peace of mind in Homework and beyond. The program itself is intuitive and easy to use. I opened… (read more)

Not only are these apps a life saver but when, the costumer service was even more impressive

I downloaded linear algebra and the physics made easy apps and I love them both !!!!! They are incredibly user friendly and helped me a ton, I just got a 100 on my linear algebra test using this app! Not only are these apps a life saver but when I had a question regarding downloading… (read more)

Love the TI89 Physics & Differential Equations Made Easy Apps PLUS: Outstanding Customer Service

I originally found the ti89.com website by surfing the web trying to find ways to help with my physics class. After downloading my first app I loved it! Helped in so many ways especially when they do step by step. I downloaded my second app a year later taking my differential equation class. It easily… (read more)

The most prestigious apps + first rate customer support = absolute primo @ Smartsoft/ tinspireapps/ ti89apps/

Has anyone ever told you how awesome you are? This is really cool!! thank you… The most prestigious apps + first rate customer support = absolute primo @ Smartsoft/ tinspireapps/ ti89apps/ That’s not calculus but it’s an equation that can be proved!!!!

TI89 Made Easy Apps helped me to learn the material faster and perform better on tests

“The TI89 Made Easy apps helped me with test concepts in a way that provided me to learn the material faster. This helped me to perform well on exams.” Review of Long Time Made Easy Customer (Used 10 apps)

love your products , great learning tool !!!

I have high regards for your product and customer service, Ive bought 4 different apps over the past year or two and Linear Algebra Made Easy being the 5th. Overall I love your products , they are a great learning tool to me. I am currently enrolled in an electrical engineering technology program. A lot… (read more)

thank you for the outstanding customer support

Hi Mike, I just wanted to thank you for the outstanding customer support. When I submitted a question to you regarding some functionality in SPME, I certainly wasn’t expecting a response within hours, especially on a Sunday. It’s been a long time since I received such a rapid and professional response from an online vendor…. (read more)

The support I get from TI89.com has been phenomenal !!!!

I initially found TI89.com through the education.ti.com website because I was looking for an app which could help me understand Calculus equation better. I initially bought the Calculus made easy 2 years ago and was just very fascinated how much this app helped me understand calculus problems better. If it wouldn’t have been for Calculus… (read more)