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Or Simplex Step-by-Step Solver

9.2 71

v13.1.2 by Simplex Developers

About OR Commented

OR Commented (Package Name: com.simplex) is developed by Simplex Developers and the latest version of Or Simplex Step-by-Step Solver 13.1.2 was updated on May 24, 2026. Or Simplex Step-by-Step Solver is in the category of Education. You can check all apps from the developer of Or Simplex Step-by-Step Solver and find 160 alternative apps to Or Simplex Step-by-Step Solver on Android. Currently this app is for free. This app can be downloaded on Android 6.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
📘 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
━━━━━━━━━━━━━━━━━━━━━━━━━
⭐ 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
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OR Commented Features
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Previous Versions

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Or Simplex Step-by-Step Solver 13.1.2 XAPK APKs May 24, 2026 9.04 MB

Variant
Arch
Version
DPI
Or Simplex Step-by-Step Solver 13.1.2 (130)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: bb2d558ed13addd944e8600dcc0e429d60423acd

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xhdpi

Size: 9.04 MB

arm64-v8a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 13.1.2 (130)

Requires Android: Android 10.0+

Architecture: armeabi-v7a

Screen DPI: 160-640dpi

SHA1: a4b4e11887fe84ff633b225c527cab0de6777378

Base APK: com.simplex.apk

Split APKs: config.armeabi_v7a, config.mdpi

Size: 14.01 MB

armeabi-v7a
Android 10.0+
160-640dpi

Or Simplex Step-by-Step Solver 13.1.0 XAPK APKs May 20, 2026 14.01 MB

Variant
Arch
Version
DPI
Or Simplex Step-by-Step Solver 13.1.0 (129)

Requires Android: Android 10.0+

Architecture: armeabi-v7a

Screen DPI: 160-640dpi

SHA1: bfe1bc977827a57265bebf6fef69f7d0d4c32eea

Base APK: com.simplex.apk

Split APKs: config.armeabi_v7a, config.mdpi

Size: 14.01 MB

armeabi-v7a
Android 10.0+
160-640dpi
Or Simplex Step-by-Step Solver 13.1.0 (129)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: 843f885ef314bca70a16d5c9c33e597236ed30f2

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xhdpi

Size: 9.06 MB

arm64-v8a
Android 6.0+
160-640dpi

Or Simplex Step-by-Step Solver 12.6.7 XAPK APKs December 25, 2025 19.3 MB

Variant
Arch
Version
DPI
Or Simplex Step-by-Step Solver 12.6.7 (127)

Requires Android: Android 6.0+

Architecture: armeabi-v7a

Screen DPI: 160-640dpi

SHA1: aeb49bff4fc96071c1dcceb562b232a4b0bf2456

Base APK: com.simplex.apk

Split APKs: config.armeabi_v7a, config.mdpi

Size: 19.3 MB

armeabi-v7a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.7 (127)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: c271b3d35f4bd878976d56c23b87cfea081d93d9

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xhdpi

Size: 10.54 MB

arm64-v8a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.7 (127)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: 953dd73620bc1f67571b9c72f44d7d0ef5721b08

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xxxhdpi

Size: 10.56 MB

arm64-v8a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.7 (127)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: 3b7e9621551d7daec8ba9fdbd23c3dfd37feab49

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xxhdpi

Size: 10.56 MB

arm64-v8a
Android 6.0+
160-640dpi

Or Simplex Step-by-Step Solver 12.6.5 XAPK APKs October 5, 2025 18.92 MB

Variant
Arch
Version
DPI
Or Simplex Step-by-Step Solver 12.6.5 (125)

Requires Android: Android 6.0+

Architecture: armeabi-v7a

Screen DPI: 160-640dpi

SHA1: b464469959ae110dd32b51a1edc989c474ede561

Base APK: com.simplex.apk

Split APKs: config.armeabi_v7a, config.mdpi

Size: 18.92 MB

armeabi-v7a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.5 (125)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: 096660d939747021bb3ef5d06e04bdf4e38baf85

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xhdpi

Size: 10.4 MB

arm64-v8a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.5 (125)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: cc446980e366a97600b594abbe0b2abc479b6c2b

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xxhdpi

Size: 10.41 MB

arm64-v8a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.5 (125)

Requires Android: Android 6.0+

Architecture: armeabi-v7a

Screen DPI: 160-640dpi

SHA1: 98814daac171f1bab8099cff52ed9d70cc4b913c

Base APK: com.simplex.apk

Split APKs: config.armeabi_v7a, config.xhdpi

Size: 10.4 MB

armeabi-v7a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.5 (125)

Requires Android: Android 6.0+

Architecture: arm64-v8a

Screen DPI: 160-640dpi

SHA1: c959a6eb02a318997f65f42e1c2e5d5f50b615e7

Base APK: com.simplex.apk

Split APKs: config.arm64_v8a, config.xxxhdpi

Size: 10.42 MB

arm64-v8a
Android 6.0+
160-640dpi
Or Simplex Step-by-Step Solver 12.6.5 (125)

Requires Android: Android 6.0+

Architecture: armeabi-v7a

Screen DPI: 160-640dpi

SHA1: afd5a3ed423d3f77e44c42d86865eadb18cfd2a4

Base APK: com.simplex.apk

Split APKs: config.armeabi_v7a, config.mdpi

Size: 18.92 MB

armeabi-v7a
Android 6.0+
160-640dpi
More Information

Package Name:

com.simplex

Update Date:

Latest Version:

13.1.2

Need Update:

Submit latest version

Available on:

Google Play

Requirements:

Android 6.0+

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