Or Simplex Step-by-Step Solver

Simplex Developers

Contains adsIn-app purchases

About this app

📘 OR Simplex Step-by-Step — the most complete Operations Research solver on Android. Built and validated with professors at Kyiv Polytechnic University, used by thousands of students worldwide.

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🧮 EVERY METHOD YOU NEED
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🔢 Simplex Method — classical, Two-Phase, and Big-M
🎯 Integer programming — Branch & Bound
📈 2D graphical method — feasible region, objective line, optimum
🧊 NEW: 3D polytope visualization for 3-variable LP — rotate and explore the feasible region
🔍 Sensitivity & Post-Optimal Analysis — ranges, shadow prices, RHS intervals
🚛 Transportation Problem — North-West Corner, Least-Cost, Vogel's Approximation (VAM)
🔄 MODI / U-V Method — optimality test and refinement
✅ Assignment Problem — Hungarian Algorithm
⏱️ Job Sequencing — 2, 3, and N-machine using Johnson's Algorithm

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⭐ WHY STUDENTS CHOOSE IT
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📝 Step-by-step explanations — every iteration commented in plain language
➗ Exact fraction arithmetic — no rounding errors, ever
⌨️ Dedicated math keyboard — built for fractions, signs, and decimals
📂 Problem history — save, reopen, and edit past problems
🌍 8 languages — English, Español, Français, Português, Русский, Українська, العربية, فارسی
⛔ 100% offline — no account, no internet, no tracking of your work

Ratings and reviews

It's really so good that the app supports Persian... ( We learned English to be able to use these apps, but some people can't afford to pay English classes And your app will really help them! ) It's really Interesting that the pro version is free for us... It's really awesome because we can't shop from Foreign countris easily. Thank you so much! Wish you all the bests!

Better than ChatGPT in solving Simplex Problems, and gives a better detailed step-by-step guide that's helpful in case I missed a step. I Definitely recommend!

I am teaching OR for MBA and CA students. A must have app for all OR students. In my course on Udemy, I have devoted half a lecture to using this app. Please visit Udemy, search for my name, and choose "optimization thru linear programming". A very useful app for students and teachers alike 👍