Spectacol (in Romanian means show) is a free (GPL v3+) ZX Spectrum emulator based on FUSE Spectrum emulator(http://fuse-emulator.sf.net)
FUSE emulator has, by far, the richest ZX features list. Spectacol enables the following features:

- Loads all ZX Spectrum files
- Accurate 16K, 48K, 128K, +2, +2A and +3 emulation
- Quick load & save snapshots. It is quite useful when you play games
- Easily select the Joystick type
- Poke finder, disassambler & inline assambler. Allows the user to crack the games and gain infinite lives quickly
- Last but not least, FUSE is very high-efficient, it needs only ~15% of CPU on a Nexus 10 to emulate your games

In addition to FUSE's features, Spectacol adds:
- Online search allows the user to access thousands of ZX Spectrum apps & games! The search results are downloaded locally and they can be used to start the games offline
- The UI is design with gamepad controls in mind. The user will be able to play all the games that support Joysticks using the gamepad.
- On screen numeric cursor (available only when a gamepad is present), allows the user to quickly start & control the games
- On Screen full/simplified 48K Keyboard needed when the numeric cursor is not enough
- On screen virtual Joystick (available only when no gamepad is present), allows the user to play the games