The TI-84 Plus CE is approved for use on the following exams:

• PSAT*, SAT*, and ACT® college entrance exams
• AP* Exams that allow or require a graphing calculator
• Approved for use on the IB exam
• Is used throughout college mathematics courses

How to Use:

https://www.youtube.com/playlist?list=PLiMDxsePYAwcYisZDtEvZ5JgpuNhfqgqM

Free Apps:

 Androids: Wabbitemu