Comparison

Teslameter. vs Pole Detector

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

Pole Detector

Easily identify the north and south poles of a magnet using your smartphone's Teslameter. This tool is ideal for scientific experiments or any production involving magnets.

Highlights
  • Identify north and south magnetic poles
  • Uses smartphone Teslameter
  • Assists with magnet experiments
  • Useful for magnet production
Features
Read full description

This app makes it easy to identify the north and south pole of a magnet. Simply point the smartphone toward the magnet and it shows the pole with the help of the Teslameter. This helps with experiments or productions where magnets are used.

Screenshots

Teslameter.1 screens
Pole Detector4 screens

Verdict

The call

The clearest difference is review sentiment: Pole Detector at 60% against Teslameter.'s 0%. Pole Detector also leads on rating (4.8 vs 2.0) and in-app purchases (none vs 1). On price, ratings volume, device support and iOS requirement 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. Pole Detector asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pole Detector holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews point the same way: 0% of Teslameter.'s written reviews are positive against 60% of Pole Detector's.

UpkeepUpdate frequency

Teslameter. ships an update every 12 months, Pole Detector every 10 days. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

Scorecard6 real differences · 4 level
Teslameter. versus Pole Detector: the parameters behind the verdict, then further details
ParameterTeslameter.Pole Detector
PriceFreeFree
Rating2.0 (3 ratings)4.8 (6 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings36 — better
Update frequencyEvery 12 monthsEvery 10 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size14 MB24 MB
Age rating4+4+
Developermargaret kovatchWebcraft AG

Customer experience

Teslameter.

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

Pole Detector

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

In-app purchases

1 purchases

Teslameter.

One-time1
  • Remove Ads$1.99
None

Pole Detector

No in-app purchases

Questions

Is Teslameter. free?
Teslameter. is free to download, with in-app purchases available.
Is Pole Detector free?
Pole Detector is free to download, with no in-app purchases.
Which has better reviews, Teslameter. or Pole Detector?
Pole Detector is rated higher. Teslameter. averages 2.0 out of 5 from 3 ratings, while Pole Detector averages 4.8 from 6 ratings.
Do Teslameter. or Pole Detector have ads?
Teslameter. shows ads; Pole Detector does not.
Which is updated more often, Teslameter. or Pole Detector?
Teslameter. ships an update every 12 months, and Pole Detector every 10 days. Most recently, Teslameter. was updated on October 2, 2026 and Pole Detector on September 26, 2026.

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