Software Alternatives & Startups
Register | Login

Rectangle VS FlashSpace

Compare Rectangle VS FlashSpace and see what are their differences

Rectangle

Window management app based on Spectacle, written in Swift.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
FlashSpace

Ultra-fast virtual workspace manager for macOS, enhancing native Spaces. Supports switching workspaces independently on displays, with hotkey-driven app management, multiple configurations, Picture-in-Picture mode, and SketchyBar integration.

Rating
0 reviews
Alternatives Is it good?
HIVLY.APP
Give Hivly an idea. Get a finished social post. Add a photo and one sentence. Hivly writes the caption, designs the post, and schedules it for Facebook, Instagram, and LinkedIn. sponsored

Which is more popular?

Based on our record, Rectangle seems to be more popular. It has been mentioned 480 times since March 2021.

social mentions
480 vs 0
Mac Tools popularity
100% vs 0%
alternatives listed
240+ vs 34

Base details

Website, pricing, platforms and company facts side by side.

Rectangle
FlashSpace
Website rectangleapp.com github.com
Pricing
Open source
—
Listed in
Mac Tools Window Manager Mac Developer Tools +1
Productivity Note Taking OS & Utilities Mac +1

Features and specs

What each product offers, as listed by its team.

Rectangle 5 features
FlashSpace 3 features
  • Ease of Use
    Rectangle offers an intuitive user interface that makes window management straightforward and user-friendly.
  • Customizable Shortcuts
    Users can easily configure keyboard shortcuts to better suit their workflow, making window management faster and more efficient.
  • Free
    Rectangle is available for free, making it accessible to anyone without the need for a financial investment.
  • Frequent Updates
    The app receives regular updates, introducing new features and ensuring compatibility with the latest macOS versions.
  • Lightweight
    Rectangle is a lightweight application that doesn't consume many system resources, ensuring smooth performance even on older Macs.

Possible disadvantages

  • Limited Advanced Features
    Rectangle lacks some of the more advanced features found in paid window management applications, such as multiple monitor support and more complex window arrangements.
  • MacOS Only
    Rectangle is only available for macOS, so users of other operating systems are unable to take advantage of its features.
  • Occasional Bugs
    Some users report occasional bugs or unpredictable behavior, which might require troubleshooting or waiting for a future update.
  • Learning Curve for Shortcuts
    While customizable shortcuts are a benefit, there is an initial learning curve for users to memorize and effectively use these shortcuts.
  • Basic Aesthetic
    The app's design and aesthetic are quite basic, lacking the polish and visual appeal found in some other similar tools.
  • Open-Source
    FlashSpace is open-source, allowing users to view, modify, and contribute to the code, fostering community collaboration and transparency.
  • Functionality for Flash Games
    FlashSpace provides a means to interact with and manage Flash-based applications, which can be valuable for preserving and using legacy Flash content.
  • Cross-Platform Compatibility
    The project appears to be designed to work across different platforms, making it accessible to a wider audience using various operating systems.

Possible disadvantages

  • Niche Use-Case
    With the decline of Flash support in modern browsers, the necessity for such a tool is limited to niche applications or legacy projects.
  • Potential Security Risks
    Interacting with Flash content can pose security concerns, as Flash has historically had various vulnerabilities that could be exploited.
  • Maintenance and Updates
    The project might not be actively maintained or frequently updated, which could lead to compatibility issues or unresolved bugs.

Analysis

An editorial look at what each product does well and who it suits.

Rectangle
FlashSpace

Overall verdict

  • Overall, Rectangle is highly regarded for its ease of use, extensive customization options, and the fact that it is free and open-source. It provides essential functionality without unnecessary complexity, making it suitable for both casual users and power users who need efficient window management.

Why this product is good

  • Rectangle is a popular window management tool for macOS, known for its simplicity and ease of use. It allows users to efficiently organize and resize application windows using customizable keyboard shortcuts or by dragging windows into pre-defined areas of the screen. This can enhance productivity by minimizing the time spent arranging windows and improving multitasking capabilities.

Recommended for

    Rectangle is recommended for macOS users looking for a straightforward, lightweight solution to manage application windows. It is particularly beneficial for those who frequently work with multiple applications at once, including developers, designers, and anyone who values a tidy and organized desktop environment.

Overall verdict

  • FlashSpace is a lightweight, open-source, and free macOS workspace/virtual desktop manager that offers a fast and customizable alternative to macOS's native Spaces, making it a solid choice for users seeking better window and workspace management.

Why this product is good

  • Free and open-source, giving users transparency and no cost
  • Lightweight and fast compared to native macOS Spaces switching
  • Highly customizable with support for keyboard shortcuts and per-app workspace assignments
  • Provides a better multi-monitor and workspace workflow than macOS defaults
  • Actively developed on GitHub with community involvement

Recommended for

  • macOS power users who want faster workspace switching
  • Developers and professionals managing many apps and windows
  • Users frustrated with the slowness of native macOS Spaces
  • People who prefer open-source, customizable productivity tools
  • Multi-monitor setups needing efficient workspace organization

Videos

Walkthroughs and reviews on video.

Rectangle 3 videos + Add
FlashSpace 0 videos + Add

SKYWALKER RECTANGLE TRAMPOLINE REVIEW!!!

More videos

  • - Skywalker Rectangle Trampoline Review #1
  • - Marvin Malton 160 Rectangle Flying Hour Watch Review

No FlashSpace videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Rectangle
FlashSpace
100% 100%
Mac Tools
0% 0%
0% 0%
Productivity
100% 100%
100% 100%
Window Manager
0% 0%
0% 0%
Note Taking
100% 100%

User comments

Share your experience with using Rectangle and FlashSpace. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

External articles and on-site reviews we used to compare the two products.

Rectangle no reviews yet
FlashSpace no reviews yet
  • Best 6 Mac Window Managers
    mackeeper.com · Sep 2023

    Rectangle shows that you don’t need to dip into your bank account to get window resizer tools. This free Mac window manager lets you manage multiple windows using keyboard shortcuts, menu options, or by dragging and...

  • Top 6 Window Manager Apps for Mac
    www.maketecheasier.com · May 2023

    Most window manager apps for Mac support multiple monitors. They can help you move windows between screens and create custom layouts for each monitor. Many window manager apps – such as BetterSnapTool, Magnet, and...

  • The 6 Best Mac Window Management Tools
    www.makeuseof.com · Apr 2023

    However, it might take some time for you to get used to the shortcuts in the Rectangle app since there are many. Furthermore, you can also add some of your apps to exceptions if you want to keep them away from...

We have no reviews of FlashSpace yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Rectangle 480 mentions
FlashSpace 0 mentions
  • Apple introduces M6 and M5 Ultra for a big leap in performance and AI compute
    Rectangle solved my macos window management annoyances. https://rectangleapp.com/ Not involved in dev of this, just a happy user. - Source: Hacker News / about 1 month ago
  • Ubuntu 26.04 LTS Released
    As a both old Linux and now decade user of MacOS, after I got used to no middle-click paste and no focus-follows-mouse: 1. Keyboard shortcuts are Emacs, Ctrl-A: start of line, E: end of line, K: kill selected or to end of line, Y to... - Source: Hacker News / 5 months ago
  • Native Instant Space Switching on macOS
    Every macOS user uses Rectangle.app — https://rectangleapp.com The ones who don't use it is because they don’t know it exists. - Source: Hacker News / 6 months ago

View more

Tracking FlashSpace since Jun 2025.

Alternatives to Rectangle and FlashSpace

When comparing Rectangle and FlashSpace, you can also consider the following products.

Loading...