FPV Freerider

Supports first person view (FPV) and line of sight (LOS) flying.
Supports self-leveling and acro mode, as well as 3D mode (for inverted flying).
Includes six sceneries and a track generator that can generate millions of tracks automatically by procedural generation.
Custom settings for input rates, camera and physics.
Option for low resolution mode (to be able to get higher framerate)
Google Cardboard style side-by-side VR view option.

Touchscreen controls support mode 1, 2, 3 and 4.
Mode 2 is default input:

Left stick - Throttle/Yaw
Right stick - Pitch/Roll

This simulator requires a powerful device. You will get best performance if you select low resolution and low graphics quality on the main menu. Also, if possible activate "Performance Mode" or similar in your phone settings to get the best performance.

Note that this is a RC flight simulator, not a game. You might find that the controls are hard, but that's because it's made to mimic real life. It is highly recommended to use a good physical controller.

If your device supports USB OTG and you have the right cable you can try to use a USB gamepad/controller.
There is a free demo available that you can try to see if it works with your controller.
Physical controllers are configurable between mode 1,2,3 and 4.
There is no guarantee that the simulator will work with your device/controller. If you have any problems please send an email and I might be able to help.

Controllers that have been successfully used include FrSKY Taranis, Spektrum, Devo, DJI FPV, Turnigy, Flysky, Jumper, Radiomaster, Eachine, Detrum, Graupner and Futaba RC radios, Realflight and Esky USB Controllers, Logitech, Moga, Xbox and Playstation gamepads.

User manual (PDF)
https://drive.google.com/file/d/0BwSDHIR7yDwSelpqMlhaSzZOa1k/view?usp=sharing

portable drone / multirotor / quadrocopter / miniquad simulator