• Toast/Tile/Badge notifications for incoming messages
  • Customizable color scheme and backgrounds
  • Other UI customizations
  • Supports all snap widths
  • Inline links, images, mp3 audio, and YouTube videos
  • Bolding/underlining/italicizing of message text, as well as preservation of formatting (see settings)
  • OAUTH2 secure sign in with Google
  • Automatic login when signing into Windows (optional)
  • Local chat logs
  • Google custom status/availability
  • Auto away status after ten minutes in the background
  • Message input auto-focused when you start typing
  • Add/remove/hide/favorite Google Talk contacts
  • Quick switching between active conversations using Ctrl+Tab
  • Quickly share information with Mercury from other apps using the Share charm
  • Search for your chat contacts in Mercury using the search button or charm
  • Keyboard friendly (keyboard shortcuts can replace need for mouse)
  • Easy image sharing via imgur

App details

Version notes

This is a stability and improved quality of service update: - General bug fixes - Fixed bug where toasts show even when app is in foreground - Fixed bug where messages were missed (introduced in recent update)

Ratings and reviews

Average customer rating

0 stars out of 5
45 ratings

Rating snapshot

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4 stars out of 5
· 10/20/2014
Good Google Talk Replacement--but has problems.

With Google pretty much dropping support for Google Talk on Windows, I was really glad to find this app running as a beautiful, full-featured "Modern" app in Windows 8. It allows me to stay connected to my Gmail-using friends without hassle. UPDATE: It's been good, but every now and then messages are missed (I think due to Google's API), and the application has some stability issues on resume. There are also occasions when their server stops working for extended periods, rendering chat inaccessible.

4 stars out of 5
· 4/8/2014
Best chat app I've used on Windows 8 so far

I love the app overall, I would give it five stars if it allowed me to log in to multiple accounts at the same time.

5 stars out of 5
· 3/26/2014
Fantastic! Full-featured and reliable.

I tried IM+, but it had a confusing interface and had trouble running in the background. I tried "Chat", but it spammed alerts whenever I lost my internet connection commuting, and required a tedious reconnection process. Mercury is my chat app savior! It's full featured, supporting off-the-record and image embeds seamlessly. It's also been reliable, un-intrusive, easy to use, supports Win 8.1 dynamic split-screen sizing, and looks good.

5 stars out of 5
· 3/24/2014
The Best Gchat for win 8

Really the best gchat client. Beautiful UI; toast notifications; in-line photo and video sharing, just awesome. And as an added bonus, developers are very responsive to emails!

5 stars out of 5
· 3/22/2014
Works great

Much better than the other google talk messenger I tried....very clean design and seems to be stable.

5 stars out of 5
· 2/5/2014

Easy to set up and use. Cheap to boot!

4 stars out of 5
· 11/12/2013
Solid app with room for improvements

If you need a solid Gchat/Hangouts messenger in the Metro interface, you can't go wrong with Mercury Chat. It has a clean interface, and it performs without noticeable issues. Big area of improvement for me would be the rendering of messages on higher resolutions. I'm running a Surface Pro, and I can full screen the app or have it taking up half the page and I don't see any more of the conversation than I would if I had it snapped to the smallest column to the side... why is this? Why not render the messages so that I can get more than a few lines of text on the screen at a time? I do a lot of long form conversation over the service, so this is really important for avoiding scrolling up and down constantly...

5 stars out of 5
· 11/10/2013
Devs are really stepping up

When this first launched it was barely functional. The devs have obviously been putting lots of effort into improvement and now this is the best chat app in the windows store. Huge kudos to the UI designers as well... this is gorgeous and perfectly suited to the metro UX paradigm. I especially like how well the snapping works in 8.1. I leave this snapped to the left of my desktop all day at work.

5 stars out of 5
· 7/30/2013
Good support, good app

I had a serious problem with the app crashing on start. The support team worked with me to debug app and find problem which appears to have been server side. They have been very kind and helpful. I highly recommend this client for those who are looking for a google talk solution for windows 8 rt, if you have a problem with the app just drop them an email and they are very helpful with resolving it.

1 stars out of 5
· 4/25/2013
Does not work on RT with gTalk

POS app, don't pay for it. Installed on RT, & won't work right with gTalk. Constantly tells me I am not in my contacts list (well, duh), & I usually don't receive messages people send to me. App tells me regularly it can't contact server, yet when I check the status on the website, it says server is up. Also, there's no list for active conversations. When someone IMs, you have to search for it through all contacts (if not a contact, you're SOL). Makes multiple convos a pain.

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