Software Alternatives, Accelerators & Startups

ScreenMark VS php eventloop

Compare ScreenMark VS php eventloop and see what are their differences

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ScreenMark logo ScreenMark

A macOS menu bar app for live screen annotation, zoom, whiteboard, freeze frame, and recording โ€” plus a free iPhone remote companion.

php eventloop logo php eventloop

a simple non blocking and async event loop written in php
  • ScreenMark
    Image date //
    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
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    2026-08-10
  • ScreenMark
    Image date //
    2026-08-10
  • ScreenMark
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    2026-08-10
  • php eventloop Landing page
    Landing page //
    2023-07-27

ScreenMark features and specs

  • Annotation Tools
    Pen, arrows, shapes, highlighter, blur, spotlight and eraser with S/M/L/XL stroke sizes, plus rich text in 5 font families and 9 weights with alignment and background highlight โ€” drawn straight over any app.
  • Live Zoom
    Three modes โ€” follow lens, full screen and cursor focus โ€” magnifying the screen in real time while the app underneath stays fully interactive.
  • Whiteboard & Blackboard
    Full-screen blank surfaces you can switch to mid-session with one shortcut, with the annotation toolset available on top.
  • Cursor Highlight & Flashlight
    Spotlight the pointer with a coloured ring in circle, squircle or rhombus, or dim the entire screen except a soft circle around the cursor. Adjustable radius and edge softness; hides when idle.
  • Screen Recording
    Records to MP4 with system audio and microphone mixed in real time.
  • Freeze Frame & Snip
    Pause the display on any moment and annotate the frozen frame, or drag to snip a region and send it to the clipboard or disk.
  • Break Timer
    Full-screen countdown with a three-ring hours/minutes/seconds display, background presets, system clock overlay and audio alerts.
  • iPhone Remote Control
    A free companion iPhone app turns your phone into a remote for the Mac overlay: cursor highlight, flashlight, drawing, zoom and slide navigation for Keynote, PowerPoint and Preview. Pairs over local Wi-Fi with a four-digit code โ€” no account, no cables.
  • Custom Keyboard Shortcuts
    Every tool is individually assignable to its own shortcut, editable in Settings and resettable to defaults.
  • Languages Supported
    20 โ€” English, Turkish, German, French, Spanish, Italian, Japanese, Korean, Chinese (Simplified & Traditional), Portuguese, Russian, Ukrainian, Polish, Dutch, Slovak, Vietnamese, Hindi, Arabic and Persian.
  • Privacy
    Runs entirely on device. No account, no servers, no analytics, nothing uploaded. Fully sandboxed and distributed through the Mac App Store.

php eventloop features and specs

  • Simple and lightweight
    The library provides a minimalistic implementation of an event loop in PHP, making it easy to understand and integrate into small projects without heavy dependencies.
  • Educational value
    As a straightforward PHP event loop implementation, it serves as a great learning resource for developers wanting to understand how event loops and asynchronous programming concepts work under the hood in PHP.
  • Non-blocking I/O support
    The library enables non-blocking I/O operations in PHP, allowing developers to handle multiple tasks concurrently without relying on multi-threading, which PHP does not natively support well.
  • Timer and periodic task support
    It provides built-in support for timers and periodic tasks, enabling developers to schedule recurring operations or delayed execution within the event loop.
  • Pure PHP implementation
    The library is written in pure PHP without requiring external C extensions, making it portable and easy to install across different PHP environments without special compilation steps.

Possible disadvantages of php eventloop

  • Limited community and support
    The project has a very small community with minimal stars, forks, and contributors on GitHub, which means limited peer support, fewer bug reports, and potentially slower issue resolution.
  • Not production-ready
    Given its small scale and limited adoption, the library may not be battle-tested enough for production environments where reliability, performance, and stability are critical.
  • Limited features compared to alternatives
    More established PHP async libraries like ReactPHP, AmpPHP, and others offer far more comprehensive ecosystems with HTTP servers, database clients, and stream handling that this library lacks.
  • Performance limitations
    Being a pure PHP implementation without leveraging extensions like ev, libuv, or swoole, the event loop may suffer from performance bottlenecks compared to extension-backed alternatives when handling high concurrency.
  • Poor documentation
    The repository has minimal documentation and examples, making it difficult for new users to understand the full API, edge cases, and best practices for using the library effectively.

Analysis of php eventloop

Overall verdict

  • php-eventloop is a lightweight event loop implementation for PHP that provides a solid, minimalistic solution for developers wanting to implement asynchronous, non-blocking behavior without adopting a full framework like ReactPHP or Amp. It's good for learning purposes and simpler use cases, though it lacks the extensive ecosystem, tooling, and production hardening of more established async libraries.

Why this product is good

  • Lightweight and simple to understand, making it easy to integrate into small projects
  • Useful for learning how event loops work under the hood in PHP
  • Minimal dependencies compared to larger async frameworks
  • Open source and available for inspection/modification on GitHub
  • Can be a good starting point for building custom async solutions

Recommended for

  • Developers learning about event-driven programming in PHP
  • Small projects needing basic async functionality without heavy dependencies
  • Educational purposes and understanding event loop internals
  • Prototyping simple non-blocking I/O operations
  • Developers who want full control over a minimal event loop implementation

Category Popularity

0-100% (relative to ScreenMark and php eventloop)
Screenshot Annotation
100 100%
0% 0
Eventloop
0 0%
100% 100
Screen Recording
100 100%
0% 0
JavaScript
0 0%
100% 100

Questions & Answers

As answered by people managing ScreenMark and php eventloop.

What makes your product unique?

ScreenMark's answer

Two things.

First, the iPhone remote. ScreenMark ships a free companion app that turns your phone into a physical remote for the Mac overlay โ€” cursor highlight, flashlight, drawing, zoom, and slide navigation through Keynote, PowerPoint and Preview. It pairs peer-to-peer over your local network with a four-digit confirmation, no account and no cables. Every other screen annotation tool on the Mac assumes you are sitting at the keyboard. This one follows you when you walk to the screen.

Second, it covers the whole session rather than one slice of it. Annotation, live zoom, freeze frame, snip, whiteboard and blackboard, a full-screen break timer, and MP4 recording with system audio and microphone all live behind a single menu bar icon. Competing tools each own one of those jobs, so people end up stacking three utilities to run one presentation.

It is also local-first by design: no account, no servers, no analytics, nothing uploaded, fully sandboxed.

Why should a person choose your product over its competitors?

ScreenMark's answer

The direct alternatives on macOS are Presentify, Scribbble, Presenter Pointer, Annotate, DemoPro and IPEVO Annotator; on Windows, Epic Pen and ZoomIt.

Against all of them ScreenMark adds two capabilities none of them have: control from your iPhone, and built-in screen recording with system audio and microphone mixed live, annotations included. If you present remotely or record training material, that removes a second app from your workflow.

It is also the only one in the category localised into 20 languages. The people who buy annotation tools โ€” teachers, lecturers and trainers โ€” are overwhelmingly outside the English-speaking world, and every significant competitor ships English-only.

On price: Pro is $29.99 once, or $19.99 a year. The category leader is $14.99 one-time for a smaller feature set, and the tools that do offer recording are typically subscription-only at a much higher tier. There is a genuinely usable free tier, and a 7-day trial on the subscriptions.

How would you describe the primary audience of your product?

ScreenMark's answer

Teachers, lecturers and corporate trainers first โ€” anyone who explains something on a screen to a room or a call, repeatedly, as part of their job. They are the group that needs zoom, whiteboard, break timer and recording in one place, and they are the reason the app is localised into 20 languages.

Second are software people running demos: sales engineers, product managers and developers walking a client or a team through an interface. For them the draw-and-zoom-over-any-app behaviour matters more than the teaching features.

Third are content creators recording tutorials, who use the annotation and recording together.

Across all three the common thread is that the work happens live, in front of other people, and switching apps mid-explanation breaks the room. That constraint shaped the whole product โ€” one menu bar icon, keyboard shortcuts for everything, and a phone remote for when you are not at the desk.

What's the story behind your product?

ScreenMark's answer

The thing that kept me building was realising the problem was not "I need a pen tool." Presenting on a Mac, I kept doing the same thing: talking about something on screen while waving the cursor at it and hoping people were looking in the right place. Plenty of tools solve the drawing. None of them solved the fact that the person presenting is not sitting still.

That is why the iPhone remote exists, and it is the feature I now use most. Once you can trigger highlight, zoom and drawing from your hand, you can walk to the screen and still drive it.

The rest followed from the same observation. Freeze frame, whiteboard, break timer and recording are not separate utilities โ€” they are the parts of running a session. So they all went behind one menu bar icon.

The macOS app shipped in April 2026, the iPhone companion in June, and it has been localised into 20 languages since.

Which are the primary technologies used for building your product?

ScreenMark's answer

Built entirely with native Apple frameworks and Swift โ€” no third-party SDKs or dependencies anywhere in the project.

The macOS app is SwiftUI and AppKit, using ScreenCaptureKit for everything that touches the screen: live zoom, freeze frame, snip and recording. Purchases run through StoreKit. The iPhone companion is SwiftUI, and the two apps connect directly to each other over the local network โ€” peer-to-peer, with no server in between, so nothing leaves the two devices.

Universal binary for Apple Silicon and Intel, fully sandboxed, distributed through the Mac App Store.

User comments

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What are some alternatives?

When comparing ScreenMark and php eventloop, you can also consider the following products

Presentify - Screen Annotation and Cursor Highlight for macOS.

ScreenStudio - Streaming, made easy!

Tella - Capture your best work with video. Record in the browser, share instantly.

Shottr - Shottr is a free macOS screenshot app with scrolling screenshots, OCR, annotation and measurement instruments.

ScreenBrush - Quick and useful way to demonstrate something on the screen by drawing.

Limelight - Limelight is a cloud-based FP&A platform designed to increase collaboration, productivity and time spent making intelligent, data-driven business decisions.