iEMF+ is an Electro Magnetic Field Detector/Simulator for iPhone 3G/3GS/4, iPod Touch and iPad.

iEMF+ is the FREE Upgradable version of iEMF!!!
iEMF+ FREE version is limited to basic settings and is easily upgradable with an In-App purchase.

Use iEMF to detect fluctuations in the local magnetic field using the built in magnetometer on the iPhone 3GS/4.

iPhone 3G/iPod Touch are supported, but limited to Simulation Mode as it has no Magnetometer(Compass) support. All other functionality is the same between devices.

Key Features:
- Ability to Zero out the device to easily see relative changes to your environments magnetic field
- Ambient Mode allows you to cancel out the Earths ambient field, while still being able to utilize the Zero feature
- Low Pass filter helps smooth out the noisy sensor readings
- Multiple LCD color schemes to choose from
- Display readings in Tesla or Gauss, with many scaling and magnification options
- Simulation Mode simulates sensor values for iPhone 3G users
- Audio Effect

iPhone 3GS required for Sensor Mode (Compass support)
iPhone 3G will only support Simulation Mode
iPod Touch will only support Simulation Mode
iPhone 4 Tested (Sensor Mode)
iPad (Sensor Mode)

Now you will have an emf detector with you at all times! With the backlit display, you will never need to hold your flashlight pointed at your emf detector again!

Hope you all enjoy this as much as i did making it!

What’s New

Version v1.3

- minor updates

Ratings and Reviews

3.7 out of 5
106 Ratings

106 Ratings

shiny but used ,

So far it's a good one

I like having the different measures with conversion info available. I upgraded to pro (thanks for the tech support Josh) and like that I can account for the earths ambient field and the sound option. One option Id love to see added and would make this app awesome is a EMF time plot measuring every 1.3secs. Even better would be this, plus the ability to save/email the finished plot. I have a professional coming to measure and I will be comparing this reader to his professional one - it will determine if I spending $200 for my own reader is necessary. Should be interesting!

Damayaisindahouse ,


My wife got a psychic reading from a friend who's impossibly accurate. The reading said there was an object from her past in the house attracting negative energy. To find it we would need an emf detector or a compass. I downloaded this app before heading off to get a compass. It's free so what if it doesn't work right. My wife and I knew the object immediately. I went around the house getting a baseline reading. I was completely skeptical we tried all types of metal objects and objects we knew had electrical fields. When we were satisfied it was reading something we placed the object a zippo lighter that belonged to her deceased father near the phone running the app it went berserk. I was getting a reading close to what I was picking up from my daughters cell phone. We placed the lighter in a ring of salt, as her psychic friend told us too. Now hopefully the negative energy will leave her peacefully. I fully recommend this app. I'm not a "ghost hunter" if I were, I would definitely have this with me.

RSL08 ,

Upgrade Takes Away Half of the Functions

I really don't know how to use this app anyway, but I'm a little miffed that about half of what I could do before the upgrade was taken away by the upgrade (that really only means I now have fewer buttons to push). If there were full instructions included with this app that made sense to me, and told how each setting was used (and specifically told me what the now unavailable functions do), I would probably upgrade to the pro version. My interest in this app is to find high EMF pockets, explainable (electrical lines, panels, and junctions - I'm thinking) and unexplainable (dead people). Right now it's just about getting the blue lights to come on... but I really want to know how this is supposed work.


Joshua waller
1.4 MB

Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.


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  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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