NetSim vs ShellMaster
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
NetSim
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NetSim is a one of a kind network modeling app, written by students for students! NetSim allows users to create complicated abstract regulatory networks connecting of nodes and connections through activating and inhibitory links to model any complex system, thing from genetic regulatory networks to decision maps. Most importantly, NetSim will simulate the behavior of each of the nodes in the network over a given period, allowing users to generate graphical displays of the dynamic changes that each node experiences over time. NetSim also gives you the ability to change virtually all aspects of the network (from the strength and sign of a regulatory connection, to the initial values associated with each of its nodes), including features like adding noise to see how randomization could affect the dynamic behavior of a system results of values over time, or self-referencing links to model direct feedback. NetSim also allows you to share networks with other users with the tap of a button. Users can download networks created by others using a short and unique alphanumeric code, make changes to its configuration or initial parameters, and upload their modifications to be shared, without worrying about changing the original network. This feature makes NetSim an extraordinary tool for teachers and students who want work on group projects and assignments. For help, additional information, or feature requests, please contact us at: csunftcappdev@gmail.com
ShellMaster
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ShellMaster turns Bash scripting into short, practical sessions you can keep up with every day. Instead of reading long docs and losing the details later, you work through real shell snippets, choose the missing pieces, and build habits that make scripts safer, cleaner, and easier to debug. Start with the shell skills people use in real work: variables, quoting, command substitution, parameters, permissions, tests, conditionals, loops, functions, arrays, files, redirection, pipelines, regex, process control, and admin tasks. Each unit focuses on one idea, then places it inside code a developer, analyst, DevOps learner, or terminal power user would actually run. The main practice path includes 250 Bash units and more than 2,500 fill-in-the-blank coding moments. Read a snippet, find the blank, and select the exact token that completes the command. This active format keeps practice quick and concrete, helping you recognize syntax, remember operators, and stop guessing when a script fails. A second training mode organizes the course into 12 major topics with 2,400 short challenges. Move through shell fundamentals, variables, data types, logic, loops, functions, file work, text processing, arguments, debugging, process management, job control, and automation. Locked progress gives the path structure, while the dashboard shows what you have mastered and what comes next. Need a fast review session? Open Shell Flashcards and flip through 1,200 cards covering shell basics, script execution, permissions, variables, quoting, I/O, redirection, tests, loops, arguments, functions, arrays, core commands, case statements, and errors. Mark cards as known or review, then keep moving without losing momentum. When you need a reference, use the built-in Shell Cheatsheet. Search Bash keywords, core commands, builtins, and operators. Entries are organized for quick scanning, with clear explanations and example code so you can check syntax while you learn. For deeper study, ShellMaster includes 15 tutorial modules with readable lessons on scripting, shell syntax, control flow, text processing, regex, command-line parsing, debugging, process management, build tools, deployment, and essential command-line habits. Save favorite lessons and return to the concepts you use most. Daily Challenge gives you one bite-size prompt to keep your Bash memory sharp. Answer, check your result, read the explanation, and come back with a little more command-line confidence. Clean code highlighting makes snippets easier to parse. Progress tracking shows completed units and current level. Sound and haptic feedback make practice feel responsive. Use ShellMaster if you are learning Bash for coding, data work, server tasks, terminal confidence, DevOps prep, or everyday automation. Whether you are writing your first script or tightening the habits behind safer shell commands, ShellMaster gives you a practical path from syntax recognition to real command-line fluency.
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Verdict
The clearest difference is price: NetSim at Free against ShellMaster's $5.99. NetSim also leads on iOS requirement (11.0 vs 16.4). ShellMaster's advantage is update cadence (every 6 weeks vs every 41 months). On ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
NetSim is free to download; ShellMaster costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
NetSim ships an update every 41 months, ShellMaster every 6 weeks. The most recent releases landed on October 6, 2026 and October 22, 2026 respectively.
| Parameter | NetSim | ShellMaster |
|---|---|---|
| Price | Free โ better | $5.99 |
| Update frequency | Every 41 months | Every 6 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad โ better |
| Requires iOS | 11.0 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 10 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | California State University, Northridge | SimTeCon GmbH |
In-app purchases
NetSim
No in-app purchases
ShellMaster
No in-app purchases
Questions
Is NetSim free?
Is ShellMaster free?
Do NetSim or ShellMaster have ads?
Which is updated more often, NetSim or ShellMaster?
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