Apps for Phones and Tablets
Control FSX & P3D from phone or tablet - More on Google Play and iTunes.
Air Navigation Air Navigation is a real-time aviation moving map navigation app for iOS, Android amd Mac OS devices. It supports free maps as well as official aviation charts for many countries. The application costs a fraction of the price of a dedicated portable aviation GPS. Air Navigation
 FlightGuage and FlightMap FlightMap is a GPS-style navigation app for Android 4.0+ tablets that plots your FSX location and flight plans on Google Maps. It has active gauges and many functions. Also FlightGauge a cockpit instrument panel suitable for many of your flight simulator aircraft. Vine Ripe Software
Flight Sim Planner Flight planning and live tracking app based on Google maps for FSX, Prepar3D or XPlane, but it can also use a devices built-in GPS. The app has a large database of airports worldwide with info on runways, frequencies and navaids. From Mobile Aviation Tools. Flight Sim Planner
 FlightSim
Utils
FlightSim Utils By Alex Bartis is an utility app for iPhone or iPad offering a range of useful features. Current screens include: quick access to all keyboard commands; aircraft checklists; live METAR weather data; displaying KML flight plans; and 3D touch actions. Flightsim Utils
FSPause FSPause is a revolutionary new utility for Microsoft Flight Simulator and X-Plane that allows users to remotely control their simulator from anywhere in the world via phone or tablet. It relays some aspects of the current flight to you, and allows you to pause it. FSPause
FSMovMap FsMovMap is an easy to use moving map for Microsoft Flight Simulator X (FSX) on Android devices. FS MovMap
 FS Radio Panel (Tambucho) Allows you to control the radios and autopilot for any FSX or Prepar3D aircraft from your Android device. Includes com1, nav1 & 2, ADF, transponder, audio panel, autopilot, course selector, landing gear, electric panel and moving map. Web site. (Spanish). FS Radio Panel
 Flight Sim Systems LLc The goal of Flight Sim Systems is provide products that allow you complete the simulator experience with a keyboard-free flight by utilizing your iPhone, iPad, or iPod. Products include a Boeing-style overhead panel, EICAS, MCP/EFIS and others.  fs systems
 Haversine Producers of AirTrack, an iPad/iPhone application that integrates with multiple data sources in order to report flight and navigation data wirelessly and in real time. The app allows you to track and control your flights in real-time in the palm of your hand. Haversine AirTrack
iFMS iFMS can interact to FS9, FSX, P3D or X-Plane to provide a nearly fully functional "Boeing style" Flight Management System and HSI display on your Android or ios device, iPhone, iPad or iPod. Use the touch screen of your device to program the FMC. New! v2.0 released. iFMS
Peix Software  Airbus and Boeing style PFDs and GlassCockpit 1000 for Android tablets and phones.  Also do software gauges for networked PCs or home cockpits Peix software
 Phawary Labs Developer of Android apps for FSX, FS9 and P3D utilising touch screen technology. PW372 Radio Stack offers Com, Nav, ADF, Transponder radios, autopilot controls plus other functions. PWB737 offers Boeing-style MCP, EFIS, radios, autopilot and more. Phawary
Position
Games
A bunch of iPad apps. The FSXControl app turns your iPad, iPhone and iPod Touch into a controller for your aircraft in FSX, and their FSXFollow app follows your FSX plane along its flight on a map. Also A230 panels for tablets and phones.. Positiuon Games
RemoteFlight Beautiful and efficient Flight Simulator gauges for Apple devices. Includes Cockpit HD, a touch-enabled cockpit panel, Radio HD, Map HD, Autopilot and Comm and VNav radios. Work with FSX and FS9. Remote Flight
Remote Virtual Cockpit Remote Virtual Cockpit is an iPad app that enables the control of multiple functionalities and the visualization of plenty of data from FSX and P3D. It offers up many fuctionalities needed to manage and control the airplane. You will easily have everything under control! Remote Virtual Cockpit
RideReady The content of RideReady consists of large, often illustrated question sets drawn from actual check ride experience that you study in an active challenge-response way to mimic actual FAA Test conditions. Airplane, helicopter, seaplane and other modules. Simple Key Pad
Simionic Garmin G1000 Simulator app for iPad. You can use it as a stand-alone IFR trainer or as an instrument in FSX and X-Plane.  Sim Plates X
Simple Key Pad Change the views, open sub panels and control the radio, the autopilot, lights, extend flaps and retire gear simply with SimpleKeyPad - FSX. Touch Pilot
SimPlates X Ultra SimPlates brings you the world’s largest collection of real-world IFR approach and other charts to your fingertips! As you virtually approach an airport bring up its corresponding plates in the SimPlates app. iPhone, ipad and Android versions. xFuel
Touch Pilot Allows you to control FSX from your tablet. Adjust your throttle, gear, flaps, lights & more with just a touch. It transmits commands over WiFi, and works with any Windows flight simulator. The app is available for iPad and Android tablets.
 Virtual Avionics Virtual Computer Display Unit (or FMC) for flight simulation in Boeing 737 and Airbus A320 styles to run on your tablet.  Also Virtual Yoke. Demo versions available. They also sell Boeing style MCP and EFIS hardware modules. Virtual Avionics
xFuel A fuel planning app for Android, xFuel lets you quickly and easily generate load sheets for your flight, be it in FSX, X-Plane or other sim. All you need to do is pick an aircraft, your origin and destination, and with a tap of a button you'll get all the info.