Comparison

Wittgenstein vs Root Locus Plotter

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

Head to head
About

Wittgenstein

Features
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A slow, careful encounter with Wittgenstein's Tractatus Logico-Philosophicus. Each proposition appears as a fill-in-the-blank β€” one word missing, two options to choose from. You read carefully, weigh each word, and feel why Wittgenstein chose this one. The Tractatus, from "The world is everything that is the case" to the closing silence. Faithful to the Ogden translation. Five propositions per day are free. A one-time purchase unlocks the book β€” yours forever. No ads. No tracking. Fully offline.

About

Root Locus Plotter

Features
Read full description

Root Locus Plotter is an educational and engineering tool designed to help you visualize and analyze control systems through the Root Locus method. Whether you’re a student learning control theory or an engineer designing feedback systems, this app makes it easy to understand the dynamic behavior of transfer functions and how poles and zeros affect system stability. - Key Features Root Locus visualization: Instantly plot the root locus of any transfer function. Gain and stability analysis: Inspect how system poles move and identify stable or unstable regions. Step response: Visualize the step response with interactive charts and get the analytic expression for transient and steady-state behavior. Support for complex systems: Works with higher-order transfer functions. Compare before and after compensation: View the root locus and step response for both the original plant and the compensated system side by side. - Educational Use Ideal for students studying control systems, feedback theory, and dynamic response. The app provides a clear and intuitive way to connect mathematical analysis with visual intuition β€” a great aid for classroom learning, homework, and lab work. - Engineering Use Engineers and researchers can use Root Locus Plotter to quickly test transfer functions, prototype controller gains, and study how poles and zeros interact under varying parameters. - Get Started Simply enter your transfer function in a clean, intuitive interface, and explore how it behaves as system parameters change. Root Locus Plotter helps you make control theory visual, interactive, and understandable.

Screenshots

Wittgenstein2 screens
Root Locus Plotter4 screens

Verdict

The call

The clearest difference is in-app purchases: Root Locus Plotter at none against Wittgenstein's 1. Root Locus Plotter also leads on update cadence (every 3 months vs every 8 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Wittgenstein sells 1 one-off in-app purchase. Root Locus Plotter asks for nothing beyond the download.

UpkeepUpdate frequency

Wittgenstein ships an update every 8 months, Root Locus Plotter every 3 months. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

Scorecard3 real differences Β· 3 level
Wittgenstein versus Root Locus Plotter: the parameters behind the verdict, then further details
ParameterWittgensteinRoot Locus Plotter
PriceFreeFree
Update frequencyEvery 8 monthsEvery 3 months β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.615.0 β€” better
Further details β€” not scored
Size3 MB30 MB
Age rating4+4+
DeveloperSungjun KimSthefano Schiavon

In-app purchases

1 purchases

Wittgenstein

One-time1
  • Unlock All Sentences$4.99
None

Root Locus Plotter

No in-app purchases

Questions

Is Wittgenstein free?
Wittgenstein is free to download, with in-app purchases available.
Is Root Locus Plotter free?
Root Locus Plotter is free to download, with no in-app purchases.
Do Wittgenstein or Root Locus Plotter have ads?
Neither Wittgenstein nor Root Locus Plotter shows ads.
Which is updated more often, Wittgenstein or Root Locus Plotter?
Wittgenstein ships an update every 8 months, and Root Locus Plotter every 3 months. Most recently, Wittgenstein was updated on October 10, 2026 and Root Locus Plotter on October 3, 2026.

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