# Tesla - Metal detector and Magnetic field recorder

> Utilities

Canonical page: [https://chrome-stats.com/d/id990674516](https://chrome-stats.com/d/id990674516)

## Overview

- **ID:** `id990674516`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Exelerus
- **Category:** Utilities
- **Rating:** 4.40 / 5 (117 ratings)
- **Version:** 2.1
- **Last updated:** 2016-10-03
- **First published:** 2015-05-19
- **Size:** 13 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/tesla-metal-detector-and-magnetic-field-recorder/id990674516)
- **Website:** [http://exelerus.com/apps/tesla](http://exelerus.com/apps/tesla)
- **Privacy policy:** [http://exelerus.com/apps/tesla/privacy](http://exelerus.com/apps/tesla/privacy)

## Description

Tesla: Metal Detector & Magnetic Field Recorder is a free tool to detect, measure, and record magnetic fields and metallic objects. It uses your device's magnetometer to provide real-time measurements, a three-axis diagram, and automated long-term recording, with measurements shown in microtesla (µT) and exportable as CSV for analysis.

If your device lacks a magnetometer, you can enable Simulated Mode to see the detector in action. The app features a clean, responsive UI for mobile and tablet use, optional sound feedback, and upgrade options for additional features.

## Rankings

- #130,263 — Overall

## Review summary

Users praise the app for its simplicity, clear science-like UI, recording capability, and the ability to distinguish ferrous vs non-ferrous metals, with occasional use in teaching EMF concepts. However, many reviews flag reliability issues: readings can be inconsistent or appear random, calibration may be unstable, and some tests show no response near devices. Other recurring concerns include lack of explanations, a confusing Demo/Real mode, and occasional UI bugs. Overall, strong concept but uneven accuracy and polish.

### Pros

- Simple to use and intuitive
- Scientific-looking interface and generally performs well
- Recording feature adds value
- Can distinguish ferrous vs non-ferrous metals (and types 304 vs 316 stainless steel)
- Useful for teaching and demonstrations of EMF and magnetism

### Cons

- Readings often seem inconsistent or random/unreliable
- Calibration can be unstable, causing readings to bounce and not settle
- No consistent response near devices or magnets (false negatives)
- Lacks explanations and educational context; confusing Demo/Real mode
- Occasional UI bugs (e.g., settings/close button unresponsive)

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- [Metal Detector・EMF Reader](https://chrome-stats.com/d/id6749162622) — 5.00 / 5
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- [Metal Detector EMF+](https://chrome-stats.com/d/id6736949895) — 4.00 / 5
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- [Smart Metal Detector & EMF](https://chrome-stats.com/d/id1114708518) — 4.40 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/id990674516)