On my Laptop, I use Stellarium. http://stellarium.org/en_GB/ (I also use the mobile version on mobile and tablet) This is a free download and gives the night sky on your screen, you can Fast Forward to plan your night of observing. You can attach your telescope to it and have full control via laptop, this will need a couple of extra downloads and correct cables to attach but to some, this is an amazing thing to be able to do.
On my mobile and Tablet the applications i use are as listed below and again, can be found for free OR you can upgrade to a paid version should you wish to do so. (I use an Iphone, Ipad, Windows PC and Android Tablet, The apps below may not be available on one or the other)
AFM*Radio: Has a very good selection of items to listen to
AstroPanel: A weather app for astronomers
Astronomy Podcasts: A very wide range of podcasts for you to listen to and enjoy
APOD: Astronomy Picture of the Day (nasa.gov) Astronomy Picture of the Day. brilliant for wallpapers, can also be used on mobiles
Aurorasaurus: For anyone wanting to try and spot the Aurora, this is one app i personally think is a must have
AuroraWatch UK: AuroraWatch UK status (lancs.ac.uk) Another Aurora app, this gives notifications which can come in handy
Clear Outside: Clear Outside v1.0 – International Weather Forecasts For Astronomers Another Astronomy weather app, quite similar to AstroPanel
Earth Viewing: Map and video of the ISS passes
ESA ERS: An app with facts about The European Remote Space Satellites, including how to track them
Heavens-Above: Heavens-Above (heavens-above.com) For times of the ISS, Satellites and nightly events
ISS Detector: Brilliant for information on ISS passes
ISS Spotter: Fully detail including a map tracker
Meteor Showers Calendar: Every meteor shower is listed, with dates of start to finish
Moon Globe: Ever looked at the moon and wondered what that specific crater is called? With this, you can find out.
Moon: This gives you lots of detail compared to others, it gives you dates of all quarters and more.
The Moon: Similar to the one above including Moon rise and Moon set.
NASA: Everything you could possibly need from NASA is here
Phases of the Moon: Never get confused again on what phase you see.
SkyPortal, created by Celestron, this app is similar to the Stellarium Mobile app
Satellite Tracker: If you’ve spent time looking up, you will probably have seen moving objects and not known what they are. with this app, you can find out exactly what it is.
Star Chart: Quite similar to SkyPortal and Stellarium. Quite simply these are good to use and which one you select is up to you. I have given 3 i use.
Space News: SpaceNews I discovered this app just a few weeks back and i find it quite interesting with the latest Space news from around the world.
Astronomy Outreach by GC 