Comparison

My Vocabulary Lists vs Simplex Linear Programming

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

My Vocabulary Lists

This app helps users expand their English vocabulary by saving words to custom lists. It offers a dictionary with over 350,000 words, pronunciation audio, and example sentences. Users can organize lists into folders and share them or use them for personal study.

Highlights
  • Save words to custom lists
  • Organize lists into folders
  • Share lists with others
  • Dictionary with 350,000+ words
  • Audio pronunciation
  • Word history tracking
Features
Read full description

My Vocabulary is an ad-free dictionary app with a simple user interface, allowing you to quickly search for words and add them to lists you create. Organize your lists into folders and share them with students, friends or family, or keep your lists private and use them as your own personal English language study guide. The My Vocabulary app was built specifically for students, teachers, autodidacts and logophiles who are looking to improve and expand their English language vocabulary. Our dictionary includes 350,000+ words and phrases from multiple dictionary sources. Each word found in the dictionary features an audio file to hear the proper pronunciation of the word, the syllables for the word, related words, and examples of how the word may be used in a sentence. Related words can be tapped to follow 'word paths'. This will allow you to expand your vocabulary beyond the single word for which you searched. All users can save words from the dictionary into a default vocabulary list and folder and paid members can create new folders and new lists. Teachers can create custom word lists that they can make public and share with all the students in their class. Then, students can save the lists to their favorites and use it as a study guide. Every word search is automatically saved into your Word History so you can refer back quickly. My Vocabulary may be the best way for native, and non-native English speakers alike, to expand their communication prowess.

About

Simplex Linear Programming

Features
Read full description

Master the mechanics of Linear Programming with an industrial-grade, visual Simplex solver. Whether you are an undergraduate student tackling Operations Research homework or an engineer optimizing complex systems, this app provides a high-performance, native environment to solve and visualize linear models. Built with Apple’s Accelerate Framework (vDSP), the engine performs hardware-accelerated matrix operations for desktop-class speed on your mobile device. Why this is the ultimate optimization tool: Visualize the Feasible Region: See your constraints come to life on an interactive Canvas. Plot the quadrant, identify intersection points, and explore the feasible region with intuitive gestures. The Simplex Journey: Watch the algorithm navigate from the origin to the optimal solution. Our "Visual Walker" tracks every iteration, highlighting each vertex transition with a clear, orange path. Professional Grade Logic: Full support for Big-M and Two-Phase methods. Easily handle ≤, ≥, and = constraints without needing to manually convert your model. Precision Entry: Clean, monospaced interface featuring color-coded inputs for coefficients, objective goals, and variable signs. Education-First Design: Perfect for learning the geometry behind the algebra. Follow the path, analyze the coordinate labels, and see exactly where the "Optimal" solution sits in the coordinate plane. Purely Native: No web wrappers or lag. Experience a fluid SwiftUI interface designed for "Engineering Soul"—performance, clarity, and reliability. Student & Professional Value Proposition For Students: Use it as a powerful "Check Your Work" tool. Compare your manual pivot steps against the visual path and verify your feasible region boundaries. For Professionals: Quickly prototype constraints and objectives on the go with a solver that respects hardware limitations and mathematical rigor.

Screenshots

My Vocabulary Lists4 screens
Simplex Linear Programming3 screens

Verdict

The call

The clearest difference is price: My Vocabulary Lists at Free against Simplex Linear Programming's $1.99. My Vocabulary Lists also leads on iOS requirement (11.0 vs 26.0). Simplex Linear Programming's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

My Vocabulary Lists is free to download; Simplex Linear Programming costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 7 level
My Vocabulary Lists versus Simplex Linear Programming: the parameters behind the verdict, then further details
ParameterMy Vocabulary ListsSimplex Linear Programming
PriceFree — better$1.99
Rating4.1 (9 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 months—
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better26.0
Further details — not scored
Size15 MB9 MB
Age rating4+4+
DeveloperJamie UttarielloJorge Lucioni Charalla

In-app purchases

None

My Vocabulary Lists

No in-app purchases

None

Simplex Linear Programming

No in-app purchases

Questions

Is My Vocabulary Lists free?
My Vocabulary Lists is free to download, with no in-app purchases.
Is Simplex Linear Programming free?
Simplex Linear Programming costs $1.99, with no in-app purchases.
Do My Vocabulary Lists or Simplex Linear Programming have ads?
My Vocabulary Lists shows ads; Simplex Linear Programming does not.

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