Screen Sharing vs Screen Casting vs Desktop Sharing | Discover the Difference

Angela Murphy — Fri, 14 Dec 2018 09:53:04 +0000

Our devices can increasingly interact with each other in ways that are bringing us closer and eliminating cables for good. Various types of wireless interactions work differently depending on what content you want to show and how. Let’s go through some examples.

Screen mirroring (screen sharing)

Screen mirroring is a way to share your screen. As the name suggests, screen mirroring allows you to project, or “mirror”, what is on your smartphone, tablet, or computer and show it on your TV screen, projector, or external monitor without needing to use a cable. The TV or projector will show a replica of what’s displayed on your computer or mobile device, including any movement (e.g., editing a text document or playing/pausing a video).

Unlike when we look into a glass mirror, screen mirroring won’t horizontally flip what you see. So when you hear mirroring, think copying. This is great for viewing local content such as pictures, videos, documents, and professional or educational presentations. During a presentation, you can even choose to only present a specific app or window while still getting to look at your presentation notes privately. This is possible with Airtame’s Single Window Sharing feature, which mirrors a specific window rather than your full screen.

With Miracast now available, Airtame also lets you extend your desktop from Windows computers. This means that, in addition to “mirroring” something you have on your screen, Miracast can also let you use a large display as a second screen. Like Single Window Sharing, extended desktop is a nifty way to view your presenter notes privately while sharing presentation content to your audience.

Let’s summarize your mirroring/screen sharing options with Airtame:

Mirror your full screen or a single window using the Airtame desktop app for Windows, macOS, Chromebook, and Linux.
Use AirPlay to mirror the contents of your Mac in addition to specific content (like photos or videos) from your iPhone or iPad.
Use Google Cast to mirror your full screen or specific content (like photos or videos) from your Android device. Using the Chrome browser on any computer, you can choose to share your full screen or a specific tab.
Use Miracast to mirror your Android or Windows screen, with the option to extend your desktop from your Windows computer.

Screen casting (media streaming)

The major difference between screen mirroring and screen casting is how content is shared to a display. In the case of screen casting, your TV wirelessly receives online content via a digital media player to a TV via a wireless connection.

Screen casting uses an app to send movies, video clips, and music from your phone, tablet or computer to your TV screen. For example, you can use the YouTube or Netflix app on your phone to cast video over the internet from the YouTube or Netflix servers to your TV display.

With casting, you can use your phone or tablet while casting a movie without any interruption. When casting, you’re not streaming video from your mobile device to the TV display, but rather using your mobile to initially set up the cast, and then letting the YouTube or Netflix server do the rest of the work. The term casting is synonymous with products like Chromecast which it has largely stemmed from. You could use your phone to start a movie on your friend’s Chromecast-equipped TV at their house, and then leave. The movie would continue to play.

Airtame supports both Google Cast and Miracast in terms of their screen mirroring and extended desktop functionalities. Airtame does not support media casting in the sense of being able to start a video from your personal device and have it continue even if you leave the premises.

Desktop sharing

Confusion might arise due to the multiple solutions that use “sharing” in different contexts. While screen mirroring is a form of sharing, “desktop sharing” can also involve sharing between computer screens. An example of this is sharing slides through a video call, allowing people working remotely to see their colleague’s or classmate’s presentation.

Solutions like Airtame work differently. They let you share your device screen locally (including your desktop screen), within the context of a meeting or classroom. Airtame mirrors the screen from your personal device and shares it to a larger display (e.g. TV, projector, or smartboard). In other words, Airtame is a solution for “live” presentations that call for individuals to direct their attention to a person who is physically present and using one (or two) displays to show visual aids that are complementary to the message of the speaker.

	Screen Mirroring/Sharing	Screen casting/Media streaming	Desktop Sharing
What it does	Copies a device’s screen, so that the same thing is visible on another screen(s)	Allows you to play content from one device onto the other	Copies a primary screen, allowing the remote viewer(s) to see everything that the first user sees, including what the “sharer” is doing
Screen view	Two screens show the same thing	Two screens showing something different	Two or more screens can show the same thing
Content	Everything on the screen is shown	Only specific content plays	Everything on the screen is shown
Internet	Not necessarily needed as a connection can be made using built-in WiFi (e.g., the receiver’s own access point)	Often used with home WiFi, although can sometimes be made using built-in WiFi (e.g., the receiver’s own access point)	Usually needed
Multitasking	Whatever is happening on the primary device is shown on the second screen (unless using presenter mode)	The primary device can be used to do something else while casting.	Whatever is showing on the shared screen is visible to the other one(s), and viewers can also be allowed to make changes
Screen timeouts	If the screen of the primary device is blacked out, the secondary device also blacks out	The screen of the primary device can be blacked out	If the screen of the primary device is blacked out, the other screens also show a black screen
Apps	Nearly everything can be viewed via screen mirroring	Not all apps support casting	Nearly everything can be viewed via screen sharing
Local content	Supports local content such as photos, documents, and videos	Usually does not support local content	Supports local content

Learn more

To learn more about Airtame and book a tentative demo, you can always get in touch.

Airtame is a leading solution for both enterprises and educational institutions all over the world.

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5 common misconceptions about wireless screen mirroring

Airtame — Fri, 01 Jun 2018 08:53:17 +0000

Our always-on support team often respond to questions that are conjured out of fake news concerning wireless screen mirroring. To set the record straight, and alleviate the most common pain points of our customers, we’re here to debunk the myths.

1. Plugging in a cable is less complicated

We don’t think so. Haven’t you ever been in a corporate meeting or a study project presentation where the presenter had to detangle a spaghetti monster of cables? The frustration of having to detangle cables, find suitable adapters or having to set up early to test is common. Setting up a wireless screen sharing solution may require a few additional steps, but once completed, it works both quicker and easier because you only have to click one button.

2. Picture quality is poor

That depends on the device. It’s true that for the best video streaming quality, a cabled connection is better. In most business or education environments though, heavy video streaming is not as important, if at all. Perhaps you’re experiencing delay rather than poor quality, and this is quite normal. A small amount of delay will not interfere with your work or presentation, and it doesn’t mean that the quality is bad. Everything has delay, even HDMI cables, but with a cabled connection it’s less than what a human would likely be able to detect. The average reaction time for humans to a visual stimulus is 0.25 seconds, and delay is generally below that. Delay is mostly dependent on the network, so if the network is fast, your wireless solution probably is too.

3. It requires something to be attached to the computer

No, not always. Some solutions, like ClickShare, have stuck to a more traditional way with devices also attached to the computer, maybe because it felt more intuitive earlier on. But more and more software solutions that use the wireless hardware already built in to the laptop or mobile device have surfaced. Like Airtame 2, that means you only need a receiving device.

4. Wireless screen mirroring uses Bluetooth

Nope, that’s not possible. Bluetooth only transmits very little data per second, not enough for screen mirroring.

5. A good internet connection is a good network for wireless screen mirroring

That’s not necessarily the case. When we mirror screens wirelessly, it stays within our network and never reaches the internet. Think of the internet as one big network and your network as a smaller, local one. Screen mirroring quality is mainly based on your network’s performance, and Airtame 2 supports both WiFi and Ethernet.

Generally speaking, Airtame 2 is not very “bandwidth hungry”, as our optimized streaming uses only very little bandwidth. Dropouts or long responsive times will however have an impact as this will cause the image to freeze or jump.

Do you still have questions? Chat, email or book a call with us today to help clear up any confusion. Take a look at our comparisons with other similar devices on the market.

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