Comparison

Teslameter. vs Emf Detector Radiation Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Teslameter.

This utility app measures electromagnetic fields around you using your device's compass. It displays readings on X, Y, and Z axes in micro-teslas, along with a magnitude reading. Primarily for entertainment, it detects interference from magnetic objects or potential paranormal activity.

Highlights
  • Measures electromagnetic fields
  • Displays X, Y, Z axis readings
  • Calculates magnitude reading
  • Detects magnetic object interference
  • For entertainment purposes
Features
Read full description

Teslameter lets you view current electromagnetic fields around you! To use, simply open Teslameter and bring your iPhone close to any ferromagnetic metal such as iron or steel, or any other magnetic object. Teslameter will measure the current magnetic fields on the X, Y, and Z axis in micro-teslas. In addition Teslameter displays a magnitude reading of (X^2+Y^2+Z^2). How exactly does it work? Since the iPhone 3GS/iPhone 4 includes a compass, Teslameter can measure the interference created by a ferromagnetic metal (or paranormal activity). Teslameter is NOT a true teslameter and shouldn't be used for anything but entertainment purposes.

About

Emf Detector Radiation Reader

Detect and track magnetic fields and potential EMF sources around you. Receive warnings for high readings and access guidelines for safe exposure levels. Monitor your environment and protect your health.

Highlights
  • Track magnetic fields and high readings
  • Detects ferromagnetic metals
  • Electrosmog (EMP) detector
  • Identifies home appliance EMF sources
  • Radio-Frequency Guidelines table
  • Warning beep for emissions
  • Stores readings with date stamps
Features
Read full description

Track magnetic fields near you. A warning beep will be activated to warn you. The app detects ferromagnetic metals using the iPhone's built-in compass feature. Also works as Electrosmog (EMP) detector. Detect many kinds of home appliances that create radio-frequency EMF. For example:plugs,cell phones,routers, baby monitors, doorbells, intercom systems,night alarm clocks, electronic appliances , electrical wire, antennas. You can check the limit allowed in the "Radio-Frequency Guidelines - for continuous and prolonged exposure" in the instructions button of this app. The higher measures of magnetic fields are stored. Not only does it help you identify potential sources of harmful EMF, but it also provides guidelines on the allowed limit for continuous and prolonged exposure, helping you make informed decisions about your environment. Plus, it stores the higher measures of magnetic fields with a date stamp for each event, allowing you to monitor your exposure over time. Magnetic fields are measured in nT (nanoTesla) and/or milligauss (mG). Customize your screen colors, calculate the magnetic force in nano tesla (nT), and store your records for future reference. Don't leave your health to chance. Take charge of your surroundings and shield yourself and your loved ones from harmful EMF radiation. Take control of your environment and protect yourself and your loved ones from harmful EMF radiation. Health is our most important asset. +++ FEATURES: -Track high magnetic fields and when has it been measured. -Table guide "Radio-Frequency Guidelines - for continuous and prolonged exposure". -Warning beep near focus emissions. -Magnetic force is calculated in nanoteslas ( nT ) -Record your readings with a date stamp of each event. -Store your records. -Change colors of your screen. If you have any issues to report or suggestions to make, please email the device you’re using, iOS version, and a detailed description of the problem to martinbellostudios@gmail.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Teslameter.1 screens
Emf Detector Radiation Reader4 screens

Verdict

The call

The clearest difference is review sentiment: Emf Detector Radiation Reader at 87% against Teslameter.'s 0%. Emf Detector Radiation Reader also leads on rating (4.6 vs 2.0) and update cadence (every 3 weeks vs every 12 months). Teslameter.'s advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Teslameter. sells 1 one-off in-app purchase and Emf Detector Radiation Reader sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Emf Detector Radiation Reader holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Emf Detector Radiation Reader has 1.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Teslameter.'s written reviews are positive against 87% of Emf Detector Radiation Reader's.

UpkeepUpdate frequency

Teslameter. ships an update every 12 months, Emf Detector Radiation Reader every 3 weeks. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 5 level
Teslameter. versus Emf Detector Radiation Reader: the parameters behind the verdict, then further details
ParameterTeslameter.Emf Detector Radiation Reader
PriceFreeFree
Rating2.0 (3 ratings)4.6 (1.3K ratings) — better
Positive reviews0.0% of reviews86.6% of reviews — better
Number of ratings31.3K — better
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.6
Further details — not scored
Size14 MB15 MB
Age rating4+4+
Developermargaret kovatchBello Studios LLC

Customer experience

Teslameter.

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Emf Detector Radiation Reader

All ratings1,313 ratings
Positive92.2%
Neutral3.1%
Negative4.7%
Written reviews432 reviews
Positive86.6%
Neutral4.4%
Negative9.0%

Bugs and requests

Teslameter.

Not enough reviews yet to summarise bugs or requests.

Emf Detector Radiation Reader

Reported bugs

2 issues
  • Readout digits overlapping on screen
  • Inconsistent behavior of sound indicator

Requested features

4 requests
  • Ability to compare readings over time
  • Option to export/share recorded data
  • More detailed information on safe/unsafe EMF levels
  • Integration with other EMF monitoring devices

In-app purchases

1 purchases

Teslameter.

One-time1
  • Remove Ads$1.99
5 purchases

Emf Detector Radiation Reader

Subscriptions2
  • Weekly Premium$4.997 Days
  • 1 Year Premium$12.991 Year
One-time3
  • Enjoy All The Features$0.99
  • Premium Pack - All Features$4.99
  • Lifetime Access$14.99

Questions

Is Teslameter. free?
Teslameter. is free to download, with in-app purchases available.
Is Emf Detector Radiation Reader free?
Emf Detector Radiation Reader is free to download, with in-app purchases available.
Which has better reviews, Teslameter. or Emf Detector Radiation Reader?
Emf Detector Radiation Reader is rated higher. Teslameter. averages 2.0 out of 5 from 3 ratings, while Emf Detector Radiation Reader averages 4.6 from 1.3K ratings.
Do Teslameter. or Emf Detector Radiation Reader have ads?
Both Teslameter. and Emf Detector Radiation Reader show ads.
Which is updated more often, Teslameter. or Emf Detector Radiation Reader?
Teslameter. ships an update every 12 months, and Emf Detector Radiation Reader every 3 weeks. Most recently, Teslameter. was updated on October 2, 2026 and Emf Detector Radiation Reader on September 29, 2026.

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