Comparison

SIMO vs iCoder

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

iCoder

This app offers a comprehensive learning resource for algorithms and data structures, featuring a large question bank and interview preparation materials. It provides a powerful search engine and allows users to share progress with friends, making complex topics accessible for IT professionals.

Highlights
  • 1000+ algorithm question bank
  • IT company interview preparation
  • Powerful search engine
  • Shareable learning progress
  • Cross-platform support (iOS, iPadOS, macOS)
  • Keyboard shortcuts for navigation
Features
Read full description

Eight years. One mission: help you master algorithms without distractions. iCoder is a LeetCode practice app trusted since day one by learners preparing for technical interviews. Version 8.0 marks our 8th anniversary with a complete SwiftUI rebuild: faster, cleaner, and ready for iOS 16 and later. Still 1000+ classic problems, still offline, still no ad popups. WHY iCODER - Born for interview prep: company-tagged problems mirror what top firms often ask - Organized by difficulty, tags, and companies so you can drill weak spots - Offline-first: the library lives on your device; browse, quiz, and widgets work without Wi-Fi - Eight years of polish: now with a modern SwiftUI interface and rich widgets BROWSE AND SEARCH - Numbered list or compact grid with adjustable columns on iPhone and iPad - Filter by Easy, Medium, Hard, VIP, favorites, and learning status - Optional Favorites and Recently Viewed at the top of the Problems tab - Search by problem ID, title, content, tag, or company - Swipe and context menus for favorites and status CATEGORIES - Algorithm tags from arrays to dynamic programming - Company collections for targeted interview practice - Smooth flow from filters to detail PROBLEM DETAIL - Bilingual Chinese and English descriptions - Adjustable font size - Unlearned, Learned, and Mastered tracking - Toolbar favorites and solution links when online - Share a long image for notes or study groups - Previous and next problem navigation DAILY QUIZ AND REVIEW - Ten questions per day by difficulty, tag, or company - Today score, best score, and streak - Wrong Book with one-tap return to full problem detail - Reshuffle for extra practice the same day LEARNING TRACKING - Favorites and Recently Viewed lists in Settings - One-tap clear all recents - Stats for favorites, learned rate, and mastered rate WIDGETS (iOS 16 AND LATER) - Daily Problem, Difficulty Glance, Daily Quiz, Favorites, Wrong Book, Learning Progress, Company Spotlight - Lock Screen and StandBy compact layouts; deep-link into the app - On iOS 17 and later: shuffle from Daily Problem and Company Spotlight Home Screen widgets without opening the app - In-app Widget Guide with FAQ PERSONALIZATION - Sixteen accent colors; Light, Dark, or System - Widget backgrounds can match your theme - English, Simplified Chinese, Traditional Chinese, or Follow System - List or grid layout with custom column count SHORTCUTS - Up to four Home Screen quick actions on long-press - Deep links from widgets and shortcuts - iPad and Mac keyboard shortcuts SUPPORT - Rate, email feedback, share the app, tip the developer - More apps from the developer - Optional App Store update reminder OUR PROMISE SINCE YEAR ONE - No ad popups inside the app - Offline problem library - Your time is precious; we respect it Requires iOS 16.0 or later. Download iCoder 8.0 and celebrate eight years of practice with us.

Screenshots

SIMO4 screens
iCoder4 screens

Verdict

The call

The clearest difference is review sentiment: iCoder at 100% against SIMO's 58%. iCoder also leads on update cadence (every 6 days vs every 3 weeks) and price ($1.29 vs $4.99). SIMO's advantage is rating (4.2 vs 3.7) and in-app purchases (none vs 1). On ads, monetization model 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

SIMO costs $4.99 and iCoder $1.29 up front. iCoder sells 1 one-off in-app purchase. SIMO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SIMO holds the better App Store score, 4.2 against 3.7. That said, the two scores are not equally well evidenced: SIMO has 55 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 58% of SIMO's written reviews are positive against 100% of iCoder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SIMO ships an update every 3 weeks, iCoder every 6 days. The most recent releases landed on August 17, 2026 and September 8, 2026 respectively.

Scorecard7 real differences · 3 level
SIMO versus iCoder: the parameters behind the verdict, then further details
ParameterSIMOiCoder
Price$4.99$1.29 — better
Rating4.2 (55 ratings) — better3.7 (6 ratings)
Positive reviews58.1% of reviews100.0% of reviews — better
Number of ratings55 — better6
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better16.0
Further details — not scored
Size61 MB10 MB
Age rating4+4+
DeveloperNumerical Co.天从 何

Customer experience

SIMO

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

iCoder

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SIMO

No in-app purchases

1 purchases

iCoder

One-time1
  • Tip the developer$0.99

Questions

Is SIMO free?
SIMO costs $4.99, with no in-app purchases.
Is iCoder free?
iCoder costs $1.29, and also offers in-app purchases.
Which has better reviews, SIMO or iCoder?
SIMO is rated higher. SIMO averages 4.2 out of 5 from 55 ratings, while iCoder averages 3.7 from 6 ratings.
Do SIMO or iCoder have ads?
Neither SIMO nor iCoder shows ads.
Which is updated more often, SIMO or iCoder?
SIMO ships an update every 3 weeks, and iCoder every 6 days. Most recently, SIMO was updated on August 17, 2026 and iCoder on September 8, 2026.

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