eTesla vs EMF Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eTesla
This utility app uses your phone's internal compass to detect magnetic fields from various sources like electronics and power lines. It helps you identify and avoid areas with strong magnetic emissions that could potentially damage credit cards or mechanical watches.
- Measures magnetic field strength
- Detects EMF from electronics
- Identifies high voltage sources
- Alerts for strong magnetic fields
- Sensor recalibration function
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By using data from the phone internal compass, This app can measure the magnetic field generated from metals Or high electromagnetic emission from High Voltage line ,Transformer , Electric motors,and some home appliance such as microwave oven. The units of measure is Tesla -µT : Nikola Tesla (10-Jul-1856 - 07-Jan-1943) inventor of the Tesla coil and developer of inductor motor working by alternate current. The normal earth emissions is around 20-40 µT. High magnetic field can reach 200 µT (e.g. near to speakers). In very high magnetic field (e.g. near electric motors ) it can be over 300 µT such high magnetic field ,can easy damage credit ,mechanical watch . If the phone has been exposed to e high magnetic field , the sensor need to be recalibrate by just shake the phone until the data reader become normal range. A alarm can be set by the slider, over that value the value become red and the phone will vibrate. So: stay away from strong magnetic field : find it and avoid it.
EMF Tracker
This app measures electromagnetic field (EMF) levels using your phone's magnetometer. It provides real-time data, professional charts, and AI-powered insights to help you understand and manage your exposure. Track trends, identify patterns, and receive personalized advice to reduce potential risks.
- Real-time EMF detection
- Professional charts and graphs
- AI-powered insights and tips
- Trend and pattern analysis
- History and data export
- 4-tier safety levels
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EMF Tracker is your comprehensive electromagnetic field detector. Measure EMF levels, and get AI-powered insights to understand your exposure — all from your phone. EMF Tracker uses your phone’s magnetometer for detecting the EMF levels. REAL-TIME EMF DETECTION * Instant electromagnetic field measurements in µT * Automatic sensor calibration * 4-tier safety levels (Safe → Caution → Unsafe → Danger) PROFESSIONAL CHARTS * Real-time EMF graphs with live updates * Daily, weekly, monthly, yearly views * Visualize your exposure patterns * Track changes over time AI-POWERED INSIGHTS * Personalized tips based on your EMF data * Smart time-of-day recommendations * Pattern analysis: weekday vs weekend * "Down 15% from last week" style insights * Actionable advice to reduce exposure TRENDS & PATTERNS * Compare today vs yesterday exposure * Weekly and monthly trend analysis * Peak hours identification * Day-of-week patterns * Weekend vs weekday comparisons HISTORY & EXPORT * Complete scan history with timestamps * Add location notes (Home, Office, Bedroom) * Export data for external analysis * Track your EMF journey over time SAFETY LEVELS - Based on ICNIRP guidelines: * SAFE (Green): Normal background levels * CAUTION (Amber): Elevated — monitor closely * UNSAFE (Orange): High — limit time here * DANGER (Red): Very high — move away PERFECT FOR: * Health-conscious home monitoring * Parents checking kids' rooms * Office workers assessing workspace * Anyone curious about EMF exposure * Identifying wireless device hotspots Download EMF Tracker and take control of your electromagnetic environment! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: eTesla at none against EMF Tracker's 2. eTesla also leads on iOS requirement (6.0 vs 15.0). EMF Tracker's advantage is review sentiment (100% vs 75%). On price, ads and device support 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
Both are free to download. EMF Tracker sells 2 in-app purchases, starting at $2.99 per year. eTesla asks for nothing beyond the download.
| Parameter | eTesla | EMF Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 41 MB |
| Age rating | 4+ | 17+ |
| Developer | Straccia Emidio Co.Sei sistemi | PPLST Tech |
Customer experience
eTesla
EMF Tracker
In-app purchases
eTesla
No in-app purchases
EMF Tracker
- EMF Tracker - Wellness$2.991 Year
- EMF Tracker - Pro$4.991 Year








