When comparing Skype vs Pulse SMS, the Slant community recommends Pulse SMS for most people. In the question“What are the best messaging apps for Android?” Pulse SMS is ranked 16th while Skype is ranked 33rd.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easily connect with others due to how popular the service is
There's a good chance that whoever you're trying to reach has Skype already set up and familiar with it, avoiding the hassle of installing and getting to know new software.
Pro Screen sharing
You can show your whole desktop, a select part of the screen or a specific window over Skype.
Pro Cross-platform
There's software for Windows, Mac & Linux and apps are available on iPhone, Android, and Windows Phone.
Pro Group video for free
You can hold video calls with up to 10 people.
Pro Available on Linux
A stripped down, minimalist version of Skype is available for Linux.
Pro File sharing
Skype allows you to send any files (MP3s, images, text, etc.) by simply dragging and dropping then in the chat window making it simple to share things with colleagues.
Pro Cheap fixed phone number
Starting at $5/mo you can get a Skype number.
Pro Send SMS and make regular calls
With Skype Credit bought or a subscription, you can send SMS and make direct calls.
Pro Group chat with archive / records
Pro Powerful 1:1 chat and also group chat
Pro Multi-platform/Unified Messaging
Pro Open-source
Pro Per-Conversation Customization
Pro One-time fee
Pro Good Material Design UI
Pro Encrypted messaging content on devices
Pro You can use the iOS app as long as you know how to sideload it
It is on GitHub and there's a way to sideload it with Cydia impactor and appsigner.io
Cons
Con Plagued by bugs on all platforms
Crashes and other bugs are prevalent on Android, Windows and other platforms.
Con Subpar video quality with more than 5 users
Skype has significant problems with multiple users and video quality. Skype recommends that a max of 5 users group chat as video quality is severely affected. Even webcams tested with other chat services showed lower quality when used with Skype.
Con Not a feasible alternative as a professional team chat
Missing key feature such as centralized mgmt, centralized billing, data retention policies, ...
Con Poor quality when screensharing
It is not possible to manually set resolution or bitrate, and Skype often defaults to a resolution so low that text is unreadable. It is also not possible to transfer control over mouse and keyboard.
Con Slow filesharing speed
Con Owned by Microsoft
Con Obnoxiously large ads
Ads take up over 25% of the usable space.
Con Poor Linux support
The version available for linux users is quite outdated, and does not support some of the newer functionality, such as the free group video calling and screen sharing.
Con Requires both ends to be online (if neither end is using a cloud-enabled device)
Messages are sent and received only when both ends are online, if neither end is using a cloud-enabled device. In this case, if you are online 9-17 and your recipient is online 18-3, messages will never be delivered.
Con MIcrosoft (Skype's owner) actively assists eavesdroppers
On the other hand, if you lose your copy of one of your conversations, you may be able to get a copy of it from your government with a little bit of luck and a public records request.
Con No RCS support
But only Messages has that.
Con Inconsistent and intermittently unreliable syncing with web app.
Forgets password periodically - dev insists that it doesn't do this - but it does.
Despite syncing via cloud there is no backup option.
Con The web and pc clients haven't been updated in almost a year. No support for gifs in the web or pc clients. Sometimes the web and pc clients are unable to login or do not sync messages.
Con Lacks support for UWP on Windows 10
UWP apps aren't hard to build - Luke K could bring his app to the Windows Store easily and make a TON of people happy at work.