Choosing between the TI-36X Pro and the TI-84 Plus series depends on your needs, budget, and exam restrictions. The TI-36X Pro is a non-graphing scientific calculator, while the TI-84 Plus series is a graphing calculator with programmability.
If you need a simple, test-approved scientific calculator for under $30, choose the TI-36X Pro. For advanced graphing, programming, and long-term STEM use, the TI-84 Plus Series is the superior—though pricier—option.
Comparison Table: TI-36X Pro vs. TI-84 Plus
| Feature | TI-36X Pro | TI-84 Plus Series |
|---|---|---|
| Type | Scientific (Non-Graphing) | Graphing Calculator |
| Graphing | ❌ Not Supported | ✅ Supported |
| Programmability | ❌ No | ✅ Yes |
| Display | Multi-line LCD | High-res Graphing Screen |
| Power Source | Solar + Battery | Rechargeable Battery (model dependent) |
| Memory & Storage | Basic Storage | High memory for apps and data |
| Best For | FE Exam, test prep, quick math | Algebra, Calculus, Physics, Programming |
| Exam Approval | SAT, ACT, AP, FE Exam approved | SAT, ACT, AP only (❌ Not FE-approved) |
| Price Range | $20–$30 | $100–$150 |
TI-36X Pro vs. TI-84 Plus Series: Detailed Feature Comparison
TI-36X Pro:
The TI-36X Pro is a scientific calculator, designed for non-graphical calculations such as algebraic expressions, trigonometric functions, and unit conversions. It operates without a graphing interface, making it compliant with strict exam environments like the FE exam.
TI-84 Plus Series:
In contrast, the TI-84 Plus Series is a graphing calculator, enabling visual representation of equations, inequalities, and data sets. This capability is essential for subjects like pre-calculus, calculus, and statistics, where visualizing functions enhances comprehension.
Graphing Capability
The TI-36X Pro does not support graphing. It handles expressions symbolically or numerically but cannot display them visually. This limitation makes it less suitable for coursework that involves analyzing graphs or interpreting plotted data. The TI-36X Pro is one of the few calculators allowed for the FE (Fundamentals of Engineering) exam, offering all essential scientific functions without programmability or graphing.
The TI-84 Plus offers full graphing capabilities, including function plotting, statistical scatterplots, and piecewise function displays. It allows students to trace, zoom, and analyze graphs interactively—an essential tool for deeper understanding in advanced math and science. The TI-84 Plus Series remains the standard choice in U.S. high schools for courses like Algebra II, Pre-Calculus, and AP Statistics due to its graphing and programmability.
Programmability
The TI-36X Pro is non-programmable, maintaining simplicity and security for exam environments. Its functions are fixed, which ensures a standardized tool for users and test administrators alike.
The TI-84 Plus Series, however, is programmable. Users can write and store custom programs in TI-BASIC or assembly language, allowing automation of repetitive tasks, custom functions, and simulations—especially valuable in engineering, statistics, and computer science applications.
Display
The TI-36X Pro features a multi-line display that supports fractional output, function templates, and simple equation formatting. It balances readability with efficiency, making it ideal for quick mental verification and clean layout.
The TI-84 Plus includes a large, high-resolution display designed for graphing. It supports multiple modes including split-screen views, which show equations alongside their graphs. Some models even feature color displays to help differentiate plotted functions and enhance visual clarity.
Power Source
The TI-36X Pro uses a solar + battery hybrid system, offering reliability during long test sessions without the need for charging. It’s designed for efficiency and long-term use without active maintenance.
The TI-84 Plus Series typically uses a rechargeable battery or replaceable AAA batteries. Rechargeable models include a USB charging port and can run for days on a single charge, though they require active power management from users.
Memory & Storage
Memory on the TI-36X Pro is limited to core functions. It does not support file storage or custom software installation. This simplicity is deliberate for use in secure test environments.
The TI-84 Plus Series includes ample onboard memory, capable of storing equations, programs, apps, and data sets. This makes it useful for users who require custom scripts, formula archives, or persistent project data.
Best Use Cases
TI-36X Pro is ideal for:
- Standardized tests like SAT, ACT, AP, and FE
- High school math including algebra, trigonometry, and introductory calculus
- Engineering exams where graphing calculators are banned
- Budget-conscious buyers seeking a reliable, durable tool
TI-84 Plus Series is ideal for:
- STEM coursework including calculus, physics, and statistics
- College-level math and science, where graphing is required
- Programming and automation, useful for custom academic tools
- Long-term educational investment with expandable functionality
Exam Approval
The TI-36X Pro is approved for the SAT, ACT, AP, and importantly, the FE (Fundamentals of Engineering) exam. This makes it one of the few advanced scientific calculators permitted in tightly regulated exam settings.
The TI-84 Plus Series is also approved for the SAT, ACT, and AP, but not allowed on the FE exam due to its programmability and graphing functions. Always confirm calculator policy with exam administrators before use.
Price Range
- TI-36X Pro costs approximately $20–$30, making it a cost-effective option for most students.
- TI-84 Plus Series ranges from $100–$150, depending on the model and memory configuration.
Although the TI-84 Plus Series is more expensive, its broader functionality justifies the price for users in advanced academic or professional tracks. Both calculators are SAT and ACT approved, but only the TI-36X Pro qualifies for all test environments, including engineering exams.
Final Recommendation
| Choose This If You Need… | Go With |
|---|---|
| Budget-friendly exam compliance | TI-36X Pro |
| Graphing and advanced math tools | TI-84 Plus Series |
| FE exam eligibility | TI-36X Pro |
| Programmability and customization | TI-84 Plus Series |
| Simple interface and fast access | TI-36X Pro |
| Multi-function STEM performance | TI-84 Plus Series |
Sheema Ahmed is a passionate writer and educator, specializing in crafting content tailored for individuals preparing for challenging exams such as CSS, SAT, and ACT. Born with a fervour for education, Sheema’s journey began at Hazara University, where she graduated with distinction, solidifying her commitment to academic excellence.