Software Alternatives, Accelerators & Startups

Parall App VS Fluid

Compare Parall App VS Fluid and see what are their differences

Parall App logo Parall App

Run multiple instances of your favorite Mac apps side by side, each with its own Dock icon, tray menu, and isolated data. Parall creates lightweight native shortcuts with no background services or hacks.

Fluid logo Fluid

Turn Your Favorite Web Apps into Real Mac Apps.
  • Parall App
    Image date //
    2025-12-11
  • Parall App
    Image date //
    2025-12-11
  • Parall App
    Image date //
    2025-12-11
  • Parall App
    Image date //
    2025-12-11

Parall is a native macOS app that lets you run multiple instances of the same application at the same time. Each shortcut behaves like its own install with its own Dock icon, optional tray menu, configuration and data folder.

Instead of scripts or duplicated app bundles, Parall creates tiny shortcut apps that launch the original app with custom settings. When the main app updates, all shortcuts follow it automatically.

Key features
- Launch multiple instances of the same app side by side.
- Each shortcut behaves like a separate app in the Dock with its own icon and state.
- App data redirect supported for almost all non sandboxed macOS apps.
- Shortcuts always stay in sync whenever the original app updates.
- Add a tray menu icon to control any app.
- For supported browsers get quick actions from tray menu icon to open new windows.
- Assign unique icons or add draw text label to easily distinguish profiles in the Dock.
- Control menu bar behavior in native full screen for supported apps and force the menu bar to always show or always auto hide for Chrome based browsers.
- Experimental control of Dock icon visibility for advanced setups that need special Dock behavior.
- Add command line parameters or flags for each shortcut.
- Advanced Info.plist overrides for fine grained app behavior tuning.
- Define environment variables per shortcut for flexible control and behavior separation.
- Parall runs only when you use it. No background processes.
- Offline and private. Operates entirely offline and never transmits any data.

Parall has no background services and works fully offline. It never injects code or modifies existing apps. Shortcuts are lightweight .app bundles that simply launch your installed apps with isolated data and configuration so you can keep work, personal, testing or client profiles cleanly separated on the same Mac.

  • Fluid Landing page
    Landing page //
    2021-07-29

Parall App

Website
parall.app
$ Details
paid $5.0 / One-off
Platforms
Mac Mac OSX MacOS
Release Date
2025 October
Startup details
Country
United States
State
California
Founder(s)
Ihor July
Employees
1 - 9

Fluid

$ Details
-
Platforms
-
Release Date
-

Parall App features and specs

  • Multiple instances of the same app
    Run several copies of a macOS app side by side, each launched from its own shortcut
  • Per shortcut data separation
    Redirect the app data storage or override HOME for each shortcut so every profile keeps its own files and settings
  • Independent Dock icons and app names
    Every shortcut looks like a real app in the Dock with its own name, icon and state, so different profiles are easy to recognize and switch between
  • Shortcut bundles that act as real apps
    Create .app shortcuts that have their own Dock icon, name and running state just like a normal app.
  • Auto updated with the original app
    When the main app updates, every shortcut automatically launches the new version with no extra work.
  • Per app tray menu icon
    Add a menu bar icon that appears only while the shortcut is running, giving quick access to its actions
  • Browser quick actions from the tray
    For supported browsers you can open new windows directly from the tray icon for the current profile
  • Custom icons and text labels
    Assign unique icons or draw a short text label on top of the icon so profiles are easy to tell apart in the Dock
  • Full screen menu bar control
    Control how the menu bar behaves in native full screen for supported apps and force always show or always auto hide for compatible apps
  • Experimental Dock icon visibility control
    Optionally change whether the shortcut Dock icon is shown or hidden for advanced Dock setups
  • Per shortcut command line flags
    Attach different command line parameters to each shortcut to launch apps with different modes or profiles
  • Info.plist behavior overrides
    Override selected Info.plist keys inside the shortcut to fine tune how the app behaves when launched
  • Per shortcut environment variables
    Define environment variables for each shortcut to keep behavior and configuration fully separated between instances

Fluid features and specs

  • Dedicated Browsers
    Fluid creates site-specific browsers that allow users to have dedicated apps for their favorite web pages. This can enhance focus and organization by keeping tasks separate from regular web browsing.
  • Custom User Experience
    Each Site Specific Browser (SSB) can have a custom icon and name, providing a more personalized and aesthetically pleasing user interface.
  • Resource Management
    Having dedicated apps for regularly used web services can minimize the use of browser tabs and extensions, potentially leading to better performance and resource management.
  • Independence from Web Browser
    Fluid apps are independent of the main web browser. This means that if your browser crashes or has issues, your Fluid apps remain unaffected.
  • Enhanced Productivity
    By converting web apps into standalone desktop applications, users can more easily compartmentalize their work, leading to enhanced productivity.

Possible disadvantages of Fluid

  • Limited to MacOS
    Fluid is available only for MacOS, which limits its usability to Mac users and excludes users on other operating systems like Windows or Linux.
  • Manual Updates
    Users need to manually update each Site Specific Browser (SSB) created through Fluid, as these do not automatically update like regular browser tabs.
  • Security Risks
    As Fluid apps are essentially wrappers for web pages, they are subject to the same security risks as any web browser. Users need to ensure they are visiting trusted sites.
  • Limited Functionality
    Unlike full-fledged desktop applications, Fluid apps might have limited native functionality. They rely heavily on the web app's own features and may lack advanced desktop integrations.
  • Cost for Full Features
    While Fluid is free to use, certain advanced features, such as pinning apps to the status bar, require a one-time purchase of Fluid's paid version.

Analysis of Fluid

Overall verdict

  • Fluid is a good option for macOS users who find themselves frequently switching between web applications and want a more streamlined process. It's especially useful for those who prefer to keep web app sessions isolated or those who enjoy customizing their workflows. However, consider that it is only available for macOS and may not support all features of more complex web applications.

Why this product is good

  • Fluid (fluidapp.com) allows users to create site-specific browsers, which can be useful for treating web applications as standalone apps on macOS. This can help with productivity by preventing web distractions and organizing workflows. Fluid is particularly beneficial if you frequently use web apps and want them to function like native applications with their own dock icons and separate sessions.

Recommended for

  • MacOS users looking to create desktop-like experiences for web applications.
  • Individuals seeking to minimize distractions from other open tabs in a standard browser.
  • Users who need isolated sessions for different web applications.
  • People who appreciate customizing their desktop workflow.

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Category Popularity

0-100% (relative to Parall App and Fluid)
iPhone
100 100%
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Development Tools
0 0%
100% 100
App Launcher
100 100%
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Group Chat & Notifications

Questions & Answers

As answered by people managing Parall App and Fluid.

What makes your product unique?

Parall App's answer

Parall is built specifically to run multiple instances of your existing macOS apps as if each one were a separate install, with its own Dock icon, optional tray icon, configuration and data folder, and without any background service. Instead of wrapping websites or mounting cloud storage, Parall creates lightweight shortcut apps that launch the real native app bundle already on your Mac, with per shortcut data redirection, environment variables, Info.plist overrides and full native behavior for features like Dropbox sync or Chrome based profiles.

Why should a person choose your product over its competitors?

Parall App's answer

Most alternatives solve only part of the problem. Cloud mounting apps like CloudMounter or Mountain Duck mount cloud accounts as drives instead of running the real app. Web wrappers like Fluid, Coherence X or Unite turn websites into apps instead of working with the native Mac apps you already use. Multi service tools like Shift or Station keep everything inside one big container window. Tray utilities like Badgeify add menu bar items from a single always running background process.

Parall is different because it multiplies the native apps that are already on your Mac. Every shortcut is its own tiny app that launches the real bundle with its own Dock icon, optional tray icon, data folder, environment variables and Info.plist overrides, and there is no permanent background service. For cases like multiple Dropbox, Slack, Discord, Chrome or VS Code profiles you get separate Dock icons, real native behavior and clean profile isolation, instead of workarounds built on top of a browser or a cloud API.

Which are the primary technologies used for building your product?

Parall App's answer

Parall is a fully native macOS app built in Xcode using Objective C and C++. It relies on standard macOS frameworks like Cocoa and AppKit to integrate cleanly with the system, Dock and menu bar. I design and refine the app icon and graphics in Pixelmator Pro. For the English text in the app, website and documentation, I use ChatGPT to polish the wording since English is not my first language.

How would you describe the primary audience of your product?

Parall App's answer

Parall is aimed at Mac users who need more than one clean instance of the same app at the same time. Typical examples are developers who test multiple environments, people who work with several client or company accounts, and power users who keep separate profiles for work, personal use, testing or streaming. It is especially useful if you depend on apps like Chrome based browsers, Dropbox, Slack, Discord, VS Code or similar tools and want each account or role to have its own Dock icon, its own data and its own controlled behavior without complex scripts or virtual machines.

What's the story behind your product?

Parall App's answer

I spent years on Windows where running multiple instances of the same app is usually straightforward. When I moved to macOS, I accepted that most apps only run as a single instance and that you are supposed to live with one Dock icon per app. I personally never needed multiple Chrome instances, until one Reddit user wrote to me and described a very simple wish: two Chrome icons in the Dock, each opening a different profile.

That conversation flipped a switch. I started noticing how many people were fighting the same thing, using extra browsers, strange scripts or manual copies of app bundles just to separate profiles or accounts. At that point I decided to build a native tool that solves this cleanly. No scripts, no automation tools, no hacks. Just lightweight shortcut apps that let you run multiple native instances side by side with their own icons and data. That became Parall.

Who are some of the biggest customers of your product?

Parall App's answer

Parall is mostly used by individual power users, developers and small teams who need multiple clean instances of apps like Dropbox, Chrome based browsers, Slack, Discord or VS Code on a single Mac. Parall does not include telemetry or usage tracking, and purchases go through the Mac App Store, so I do not maintain or publish a list of specific companies or "biggest" customers.

User comments

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Reviews

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Fluid Reviews

10+ Best Prototyping Tools for UI/UX Designers in 2018
With a strong focus on simplicity and communication, Fluid UI great Prototyping tools. Having built-in high and low fidelity component libraries, live team collaboration, device previews and video presentations making it a top-notch solution for designers, product managers and founders alike.

Social recommendations and mentions

Based on our record, Fluid seems to be a lot more popular than Parall App. While we know about 19 links to Fluid, we've tracked only 1 mention of Parall App. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Parall App mentions (1)

  • How to Turn a Go GUI App into a Mac App with Parall
    Parall is available on the Mac App Store and can do much more than this post covers. Learn more here: https://parall.app. - Source: dev.to / 3 months ago

Fluid mentions (19)

  • ToDesktop โ€“ Web app to desktop app in minutes
    > Is ToDesktop For Me? > If you want to make a desktop app of a website for your personal use, ToDesktop is overkill. I just want to point out that a lot of us "pros" learn how to use tools like this by semi-personal use. Therefore, you might want to consider a free personal version that's crippled in a mildly annoying way: For example, no installer, don't sign the app, and have an easily-ignorable nag. (Therefore... - Source: Hacker News / almost 3 years ago
  • in safari Sonoma, do profiles act like containers ? (firefox container)
    If you haven't used Fluid - https://fluidapp.com , I would recommend trying the free download. Source: about 3 years ago
  • Why is it so hard to change Chromium's UI?
    You can use Min, Fluid or any browser with full screen mode to have the same effect. Source: about 3 years ago
  • Safari Window Management
    Https://fluidapp.com/ might do it for you. Other applications like this also exist. Source: over 3 years ago
  • Web Push for Web Apps on iOS and iPadOS
    Does Fluid[1] work as a solution for you? Iโ€™m on an older OS with an older version but I love it for creating single-site apps. [1] https://fluidapp.com/. - Source: Hacker News / over 3 years ago
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What are some alternatives?

When comparing Parall App and Fluid, you can also consider the following products

Badgeify App - Badgeify is a macOS app that adds your app icon & notifications to the menu bar, never miss any notification, start your favorite apps with a single click.

WebCatalog - Run your favorite web apps natively

CloudMounter for Mac - Ultimate cloud storage manager with native M1 support

Nativeifier - Turn any webpage into a native app

Mountain Duck - Cyberduck for mounting volumes in the file explorer. Available for Mac and Windows.

Coherence X - Coherence X4 is a powerful tool that allows you to turn any website into a chromium-based, isolated, native application on your Mac.