Alien Motion Detector

• Price: $1.99

Last verified 31 Jul 2026

3.9 31 ratings · App Store

1. 4/5Almost a 5

   The sound is almost spot on, the sound is too correct, as in, it sounds too much like the Raw sound and not what we hear in the movie. In the movie it's a lower pitch and there's no sharp bite at the end. Also for the billionth time I've seen something like this, the tracker is not beeping fast enough. The movie is faster. Take the recent AvP game, not colonial marines, the one by rebellion, they did it perfectly, the pitch, the speed everything. Very worth the purchase I will say, it is basically perfect, everything is perfect except the pitch and the speed at which the sound is played.

   CRIMNAL · 31 Jul 2026

2. 4/5Idea!

   Nice app, but maybe see if you could integrate with Apple Location Services or Googlemaps and scan/import locations of your contacts list... How awesome would it be to locate your friend in a crowd, find your wife's lost phone in the trash, etc.? Apple might pay you for that one...

   Mrowmrif2 · 31 Jul 2026

3. 5/5A must have for fans

   Alien fans like myself would DIE for this app I can role play with friends with this because of the pitch perfect sounds from the original aliens motion tracker coming from the heart of a aliens fan I hope to see a m4 a1 pulse rifle app soon lol a must have for die hard fans or even if your not it's still awesome to hear the creepy sounds. Great work ;D

   Dark music rock :3 · 31 Jul 2026

4. 5/5Motion tracker

   You should try to make it so when you place a beacon down it uses your current location and you could place a beacons around your house or elsewhere and actually use it to Mark where something is or have an actual role-play using it

   Michie61 · 31 Jul 2026

5. 5/5Just figured this out.

   The rate at which the bloops close in seems to be perfectly timed to Hudson counting down the distance during the big attack scene when the aliens drop from the ceiling. I don’t know if it’s intentional or accidental, but I appreciate it!

   INvalidSYNapse · 31 Jul 2026

Privacy

• No Details Provided Developer declared

Accessibility

No accessibility labels collected yet.

• 1.0
• 1.0.1

  +Updated graphics to work on larger resolutions better +Adjusted volume of sound effects +Added random movement to the alien blobs +General bug fixes

• 1.0.2

  +Updated distance meter reading to give an actual value of the nearest alien +Variable pitch audio based on alien distance (higher pitch the closer they are) +Cleaner audio for the sound effects +New gyroscope code for smoother experience at different angles +Improved alien pulse animation to hide them instead of black +Speed of overall pulse put up a notch to match closer to original

• 1.0.3

  +Updated pulse timings to match the original +Updated alien dot graphics to vary in size slightly upon placement +Fixed bug which had aliens drifting away from the player - now they will always come towards the player +Optimized performance

• 1.0.4 · 11 Oct 2017

  This update from Apple will improve the functionality of this app. No new features are included. + All new customisation options by tapping CONFIG in the corner - Adjust how many aliens you want on the screen - Change how long the aliens live for before the disappear - Choose how fast you want the aliens to move as they zone in to your position + Updated code to 64-bit for iOS 11 compatibility + Updated alien shaders to pulse better and brighter + Fixed bugs in the backend