Apps Like Quantum System Engineer for iPhone and iPad
Explore concepts and math with interactive tools
Systems offers tools for matrix manipulation, eigenvalue analysis, and state visualization. Users can explore transformations and linear algebra concepts through interactive simulations and structured educational content.
Ranked alternatives
Showing 141–160 of 1,000 ranked alternatives.

Quick Graph
KZ Labs SAS
, solve, and visualize equations
Enter and edit equations in mathematical notation. Visualize 2D and 3D graphs of explicit, implicit, and inequality equations. Adjust settings for display and analysis. Save and share calculations.

Hydraulic Calculator Engineer
Arsosa Network Inc.
Calculate cylinder force and pressure automatically
Allows users to input values for cylinder calculations, power, pressure difference, piston diameter, speed, lifting time, and volume flow. The automatically computes results without requiring manual formulas.






Cellcrypt Enterprise
Cellcrypt Inc.
Send encrypted messages and files
Secure communication with end-to-end encryption and post-quantum protection for voice, video, messaging, and file transfers. Send large files securely. Supports secure instant messaging for classified government communications.

Calculator 1+1
Vikas Choudhary
Calculate, edit, and track equations
Perform basic arithmetic operations, including addition, subtraction, multiplication, and division. Use parentheses for complex calculations. Switch between light and dark themes for better visibility.

PID Controller Simulation
立娜 王
Simulate, analyze, and control PID loops
Learn PID control theory with structured tutorials covering basics to advanced topics. Simulate control systems and adjust parameters in real-time. Explore scenario applications and analyze system responses through graphical outputs.


Calculator: Pro
Appgeneration, Software Technologies, Lda
Calculate, convert, and solve equations
MyCalc offers basic and scientific calculation functions. Users can switch between portrait and landscape modes. It supports currency and unit conversions. Results, equations, and conversions can be copied, shared, or saved.

Math AI - The Math Solver App
Jignesh Thakkar Huf
Snap problems and get step-by-step solutions
Solve problems by snapping photos. Receive step-by-step explanations and multiple solving methods. Access interactive graphs and a scientific calculator. View how-to animations for each solution.




PD+ : Easy Pupillary Distance
Zernike LLC
Capture PD with a single facial photo
PD+ captures and processes a high-resolution facial photo to measure . It provides far and near PD measurements for both binocular and monocular use. It also measures fitting heights for current frames to ensure accurate lens prescriptions.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.