Algo Demo vs C++ Starter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Algo Demo
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Algo Demo — Visualize Algorithms & Data Structures Designed for CS students, interview preppers, and educators, Algo Demo demystifies algorithms through interactive animations and step-by-step visualizations. Covered Topics: • Data Structures: Linked Lists, Binary Trees, Stacks, Hash Tables • Core Algorithms: Sorting, Two Pointers, Dynamic Programming, Binary Search Key Features: • All-New Progress Control: Our most powerful interactive upgrade yet! Drag a sleek progress bar to jump to any step of an algorithm in real-time. Perfect your understanding by replaying complex parts at your own pace. • Live Code Playback: Watch the code execute in perfect sync with the visualization. Key lines are highlighted as the algorithm runs, forging a clear connection between abstract logic and concrete implementation. • Smooth Animations: Break down each step of algorithm execution with crystal-clear visuals. • Interactive Playback: Adjust speed, pause, or rewind for deeper learning.
C++ Starter
Learn C++ programming by writing and running code directly on your device. Progress from basic syntax to advanced projects like games and network applications with interactive lessons and exercises.
- Write, compile, and run C++17 code
- 20 free C++ lessons
- Advanced courses via Learning Pro
- Interactive exercises and checklists
- Explore C++ history and applications
- On-device compilation and execution
- Support for multiple projects
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C++ Starter is a programming and learning environment for beginners. Learn by writing and running real C++ code, progressing from basic syntax to algorithms, games, graphical interfaces, and network projects. Write, compile, and run C++17 programs directly on iPhone, iPad, and Mac. Provide input and inspect output without setting up a compiler toolchain yourself. Learn by writing code Start with 20 free C++ lessons covering variables, input and output, conditions, loops, functions, strings, containers, structs, and classes. Continue with seven advanced courses through Learning Pro: - C++ Data Processing and the Standard Library - Algorithms and Problem Solving - C++ Object-Oriented Programming and Project Organization - Console Tool Projects - Introduction to Game Programming - Introduction to GUI Programming - Introduction to HTTP Programming Courses are available in English, Simplified Chinese, and Japanese, with explanations, examples, exercises, and reference implementations. Console exercises are checked locally using test inputs and outputs. Game and GUI exercises include interactive checklists. Explore beyond the code Discover the history and applications of C++, learn coding conventions, explore popular libraries, and find recommended books to guide your next steps. App news and contextual tips introduce new features and offer practical guidance for programming and learning. From console programs to interactive projects - Build data-processing tools and algorithms with the standard library - Learn game and graphics programming with raylib - Explore widgets, layouts, and events with TGUI - Learn HTTP requests and server endpoints with CPR and Crow - Edit and run client and server code within the same project A workspace for every screen - C++17 and multiple source files - On-device compilation and execution - Preset input and interactive input - Program output and compiler diagnostics - Automatic code saving - Tab navigation on iPhone, with a landscape layout that leaves more room for your work - Project-focused sidebars on iPad and Mac, with quick access to courses and Explore - Light and Dark Mode support - Multiple projects and advanced library, display, and server settings with IDE Pro Local programming, networking when needed No account registration is required. Project code stays on the current device, and compilation and execution take place locally without uploading your source code to the developer’s servers. Network programs can access external services; data included in requests is sent to the servers specified by your code. Free features and optional purchases The complete C++ Basics course and one editable local workspace for standard C++ are free. IDE Pro is an optional one-time purchase that unlocks multiple projects and advanced project settings. Learning Pro provides access to paid courses for 1, 3, or 12 months, with no automatic renewal. During the access period, you can study all paid courses available in your region. The editing and execution features needed for course exercises are included; no separate IDE Pro purchase is required. From your first program to games, interface tools, and HTTP endpoints, start building with C++ Starter.
Screenshots
Verdict
The clearest difference is in-app purchases: Algo Demo at none against C++ Starter's 4. Algo Demo also leads on iOS requirement (13.0 vs 17.0). C++ Starter's advantage is ads (none vs shown) and update cadence (weekly vs every 4 months). On price 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
Both are free to download. C++ Starter sells 4 one-off in-app purchases. Algo Demo asks for nothing beyond the download.
Algo Demo ships an update every 4 months, C++ Starter weekly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | Algo Demo | C++ Starter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 98 MB |
| Age rating | 17+ | 4+ |
| Developer | zhuo zeng | Dozen Network Technology Co., Ltd. |
In-app purchases
Algo Demo
No in-app purchases
C++ Starter
- Learning Pro — 1 Month$0.99
- Learning Pro — 3 Months$2.99
- C++ Starter IDE Pro$2.99
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- Learning Pro — 12 Months$9.99









