Comparison

SIMO vs Slopes

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

Head to head
About

SIMO

This app provides a MATLAB development environment for iOS devices, allowing users to create, edit, and run MATLAB code locally. It's designed for beginners and students learning MATLAB basics, offering essential syntax and functions without requiring an internet connection.

Highlights
  • MATLAB interpreter for beginners
  • Create, edit, and run MATLAB code
  • 100% on-device computation
  • Offline functionality
  • Real-time plot rendering
  • Command console with syntax highlighting
  • File manager with iCloud sync
Features
Read full description

~~~~~~~~~ Check out our FREE app Console, which is powered by SIMO's MATLAB interpreter. If you find Console useful, SIMO is definitely suitable for you. ~~~~~~~~~ SIMO is a feature-rich development environment for MATLAB. We have developed a version of MATLAB interpreter that works for commonly used language syntax and functions for beginners. [+] Who will find SIMO useful? - Students learning the basics of MATLAB. - Course instructors of fundamental MATLAB courses. - Individuals whose works do not depend on specialised toolboxes and advanced language syntax. [+] What is SIMO? - It is an integrated environment for running MATLAB. - It allows you to create, edit, and run MATLAB code on iOS devices. - Unlike other apps that compute on the cloud, it performs computation entirely locally on device. No internet connection is needed. You don't miss a single app feature even if you are offline. [+] What SIMO cannot do? - It does not completely replace MATLAB, as it has only a subset of built-in functions of MATLAB. - It does not support advanced features such as Simulink or creating user-interface. [+] One app, all platforms - You will be amazed at how much work you can do on a phone. The app is designed to let you work effectively on smaller screens. - The iPad app features a split-screen layout. You can enjoy a full-screen workspace, or work on two views simultaneously. - The iPad app runs on Macs with Apple silicon as well. Buy one app and it works on all of the platforms. [+] MATLAB interpreter - The interpreter works for language syntax that is essential to survive a MATLAB course. It provides the most commonly used built-in functions for learners. - The interpreter computes on your device locally. You will not miss a single app feature even if you go completely offline. - SIMO comes with a full set of documentation and user guides. It is offline accessible and full-text searchable. [+] Visualization tool - Plots are rendered in real-time using your device's computing power. Operations such as updating line attributes, pan and zoom are fast and responsive. - Stunning 3D plots are rendered by the device's GPU in real-time. Pan, zoom or rotate with multi-touch gestures, trackpad or keyboard shortcuts. - Plot attributes are editable through the built-in user-interface. You can improvise with different styles without entering a single line of code. [+] Command console - You can run one or many lines of code from the command console. It supports line numbering, auto-intent and syntax highlighting. - Search over thousand lines of output data instantly. You'll never get overwhelmed by the sea of numbers. - Output data are formatted automatically to fit the screen size or app window. Data are always neatly presented however you resize the app. [+] File manager - Files can be synced across all of your iCloud Drive enabled devices (iPhone, iPad, Mac). Or, you can store them locally on device. - Tons of files buried in tons of folders? No worries. The search feature will help you find an item instantly. - It has features you expect from a useful file manager. Add, copy, delete, duplicate, move, rename, sort and more. [+] Script editor - It has features you expect from a useful script editor. Syntax highlight, auto-indent, line numbers and more. - Search for a word in a script. Replace occurrences with another word. - Recent items are accessible from your finger tip. It is a useful feature for navigating through frequently accessed files.

About

Slopes

Explore graphical solutions to ordinary differential equations with this interactive educational tool. It offers six distinct activities, including plotting vector fields, solving systems of equations, and visualizing oscillations. Ideal for homework, classroom use, or research projects.

Highlights
  • Interactive ODE exploration
  • Vector field plotting
  • Systems of equations solver
  • Numerical approximation methods
  • Bifurcation diagram creation
  • Preloaded and custom examples
Features
Read full description

Slopes is an interactive environment for exploring graphical solutions to ordinary differential equations. Slopes consists of six activities with preloaded examples to get you started and the ability to input your own content. "Slopefields" and “Phase Planes” both plot vector fields and solutions corresponding to multiple initial conditions. “Systems” dynamically solves systems of up to six equations. “Oscillations” solves second-order constant coefficient equations and animates the corresponding spring-mass system or RLC circuit. “Methods” constructs numerical approximations of a single ordinary differential equation using Euler’s method as well as Second and Fourth Order Runge-Kutta methods. "Bifurcations" creates a bifurcation diagram and shows the stability of equilibrium points. Slopes is a playground for ODEs. You can use it for homework, in-class activities or a new research project.

Screenshots

SIMO4 screens
Slopes4 screens

Verdict

The call

The clearest difference is price: Slopes at Free against SIMO's $4.99. Slopes also leads on rating (4.9 vs 4.2) and review sentiment (100% vs 58%). SIMO's advantage is update cadence (every 3 weeks vs every 2 months). On ratings volume, ads, 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

Slopes is free to download; SIMO costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Slopes holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 55 and 41 respectively. Written reviews point the same way: 58% of SIMO's written reviews are positive against 100% of Slopes's.

UpkeepUpdate frequency

SIMO ships an update every 3 weeks, Slopes every 2 months. The most recent releases landed on September 29, 2026 and September 19, 2026 respectively.

Scorecard5 real differences · 5 level
SIMO versus Slopes: the parameters behind the verdict, then further details
ParameterSIMOSlopes
Price$4.99Free — better
Rating4.2 (55 ratings)4.9 (41 ratings) — better
Positive reviews58.1% of reviews100.0% of reviews — better
Number of ratings55 — better41
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size61 MB21 MB
Age rating4+4+
DeveloperNumerical Co.Tim Lucas

Customer experience

SIMO

All ratings55 ratings
Positive80.0%
Neutral7.3%
Negative12.7%
Written reviews43 reviews
Positive58.1%
Neutral18.6%
Negative23.3%

Slopes

All ratings40 ratings
Positive97.5%
Neutral0.0%
Negative2.5%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SIMO

No in-app purchases

None

Slopes

No in-app purchases

Questions

Is SIMO free?
SIMO costs $4.99, with no in-app purchases.
Is Slopes free?
Slopes is free to download, with no in-app purchases.
Which has better reviews, SIMO or Slopes?
Slopes is rated higher. SIMO averages 4.2 out of 5 from 55 ratings, while Slopes averages 4.9 from 41 ratings.
Do SIMO or Slopes have ads?
Neither SIMO nor Slopes shows ads.
Which is updated more often, SIMO or Slopes?
SIMO ships an update every 3 weeks, and Slopes every 2 months. Most recently, SIMO was updated on September 29, 2026 and Slopes on September 19, 2026.

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