BY VIEWCAST    UPDATED January 4, 2026

The Advanced FX Calculator 991 ES Plus & 991 MS Plus is a versatile and powerful tool that stands out in the crowded world of scientific calculators. It offers users a feature-rich experience, making complex computations effortless. Whether you're a student, an engineer, or anyone needing precise calculations, this calculator is a reliable choice worth exploring.
This calculator boasts a wide array of functions that cater to various needs, from basic arithmetic to complex scientific calculations. What sets the Advanced FX Calculator 991 ES Plus & 991 MS Plus apart is its intuitive user interface, making navigation through its features straightforward. Users appreciate the familiar layout, reminiscent of traditional scientific calculators, which aids in a seamless transition for newcomers.
One of the standout features of this calculator is its ability to handle a variety of computations. Whether it's solving for a system of equations, dealing with polynomial degrees, or performing unit conversions, this tool covers it all. The precise fraction button is a pleasant addition, providing functionality that’s often missing in other calculator apps. Moreover, customizable themes ensure that users can personalize their experience.
While the Advanced FX Calculator 991 ES Plus & 991 MS Plus excels in many areas, it does have a few limitations. Notably, it lacks a graphing function, which would be a valuable addition for users. Also, the navigation buttons and mode indicators could benefit from some enhancements to align more closely with those of modern physical calculators.
The convenience of having this powerful calculator on a smartphone cannot be overstated. It saves users the expense and hassle of purchasing a separate device. Plus, the app offers both free and pro versions, with the latter unlocking additional features at a minimal cost. Even the free version is comprehensive and ad-free, which is a significant plus.
In summary, the Advanced FX Calculator 991 ES Plus & 991 MS Plus is a top-notch tool that blends excellent functionality with user-friendly design. It’s a must-have for anyone needing a robust calculator for their daily tasks. With a few enhancements, it has the potential to become the ultimate go-to calculator app for professionals and students alike.
The Advanced FX Calculator 991 ES Plus & 991 MS Plus offers a range of features, including basic arithmetic, complex computations, unit conversions, and a precise fraction button. It is designed to cater to various needs, ensuring comprehensive functionality.
No, the current version of the calculator does not include a graphing function. This is noted as an area for potential future improvement.
Yes, the app offers a free version that includes most of its features without any ads. For additional functionality, users can upgrade to the pro version at a minimal cost.
Yes, the calculator allows customization through theme choices, enabling users to personalize their experience according to their preferences.
Yes, the user interface is designed to be familiar and intuitive, mirroring the layout of traditional scientific calculators, which helps in a smooth transition.
Currently, the app does not have built-in weather-related formulas. However, users can manually input variables and write custom programs for specific calculations like wind chill factor or heat index.
With its impressive array of features and user-centric design, the Advanced FX Calculator 991 ES Plus & 991 MS Plus stands out as a valuable tool for anyone in need of a reliable scientific calculator.
Advanced fx calculator 991 es plus & 991 ms plus is primarily a mobile app designed for smartphones. However, you can run Advanced fx calculator 991 es plus & 991 ms plus on your computer using an Android emulator. An Android emulator allows you to run Android apps on your PC. Here's how to install Advanced fx calculator 991 es plus & 991 ms plus on your PC using Android emuator:
Visit any Android emulator website. Download the latest version of Android emulator compatible with your operating system (Windows or macOS). Install Android emulator by following the on-screen instructions.
Launch Android emulator and complete the initial setup, including signing in with your Google account.
Inside Android emulator, open the Google Play Store (it's like the Android Play Store) and search for "Advanced fx calculator 991 es plus & 991 ms plus."Click on the Advanced fx calculator 991 es plus & 991 ms plus app, and then click the "Install" button to download and install Advanced fx calculator 991 es plus & 991 ms plus.
You can also download the APK from this page and install Advanced fx calculator 991 es plus & 991 ms plus without Google Play Store.
You can now use Advanced fx calculator 991 es plus & 991 ms plus on your PC within the Anroid emulator. Keep in mind that it will look and feel like the mobile app, so you'll navigate using a mouse and keyboard.

