Or Simplex Step-by-Step Solver
Education
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
OR Simplex Step-by-Step is a comprehensive Operations Research solver for students. Built and validated with professors at Kyiv Polytechnic University, it is used by students worldwide.
EVERY METHOD YOU NEED
- Simplex method: classical, Two-Phase, and Big-M
- Integer programming: Branch and Bound
- 2D graphical method: feasible region, objective line, and optimum
- 3D polytope visualization for 3-variable linear programming: rotate and explore the feasible region
- Sensitivity and post-optimal analysis: ranges, shadow prices, and RHS intervals
- Transportation problem: North-West Corner, Least-Cost, and Vogel's Approximation (VAM)
- MODI / U-V method: optimality test and refinement
- Assignment problem: Hungarian algorithm
- Job sequencing: 2, 3, and N machines using Johnson's algorithm
WHY STUDENTS CHOOSE IT
- Step-by-step explanations with every iteration described in plain language
- Exact fraction arithmetic to avoid rounding errors
- Dedicated math keyboard for fractions, signs, and decimals
- Problem history to save, reopen, and edit past problems
- 8 languages: English, Spanish, French, Portuguese, Russian, Ukrainian, Arabic, and Persian
- No account required
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
UI bugfixes
The developer, Bohdan Bezpartochnyi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bohdan Bezpartochnyi
- Size
- 47.5 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 7 more
- English, Arabic, French, Persian, Portuguese, Russian, Spanish, Ukrainian
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- OR Commented Pro $2.99
- Copyright
- © Simplex Developers