Comparison

Teslameter. vs Dr.EV

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

Dr.EV

Optimize your electric vehicle's battery performance and lifespan with intelligent AI-driven analysis. Monitor battery health, driving habits, and charging efficiency with real-time insights and actionable recommendations for enhanced longevity and performance.

Highlights
  • Smart battery management guide
  • Real-time battery health insights
  • AI-powered safety detection
  • Intelligent charging monitor
  • Real-time driving analytics
  • Historical battery timeline
Features
Read full description

Welcome to Dr.EV — Tesla Battery Management App Dr.EV is your intelligent companion for optimizing electric vehicle (EV) battery performance and longevity. Our innovative app is designed to keep you informed and in control of your EV’s battery health, driving habits, and charging efficiency. Harnessing the power of cutting-edge AI, Dr.EV provides real-time battery analysis, delivering precise health reports with easy-to-understand metrics such as State of Charge (SoC), Expected Range, and Overall Battery Health Percentage. Our advanced diagnostic tools detect anomalies, predict State of Health (SoH), and offer actionable insights to enhance battery efficiency and lifespan. With Dr.EV, you no longer have to worry about battery management. Our intelligent system guides you on optimal driving and charging strategies, ensuring maximum performance and durability — so you can focus on the road while we take care of your battery. Powered by Innovation: Dr.EV is built on proprietary AI algorithms and battery analytics. Our research has been featured in leading scientific journals and industry conferences. Learn more about our technology → https://www.sciencedirect.com/science/article/pii/S2666546823000915 Key Features of Dr.EV 1. Smart Battery Management Guide • Provides clear, real-time guidance and proactive notifications to help users effortlessly manage battery health. • Utilizes advanced algorithms to automatically detect and alert users of unusual pack behavior and potential issues. • Empowers users with actionable recommendations for battery maintenance, optimal charging practices, and improved driving habits without requiring technical expertise. 2. Battery Health Insights (Hybrid Algorithm: AI + Dr.EV Patented Algorithm) • Employs a hybrid algorithm approach combining Dr.EV's patented algorithm and AI-based methods to accurately calculate the battery State of Health (SoH) and estimate remaining mileage. • Continuously processes real-time voltage, current, and temperature data to provide ongoing accurate insights. • Performs weekly AI-driven analyses and result corrections for robust battery health assessments. • Visualizes personalized battery health trend charts influenced by real driving and charging behaviors. 3. AI-Powered Safety Detection • Detects early signs of battery pack issues, abnormal degradation, and unusual behavior using AI. • Runs weekly AI safety checks for balanced protection and performance. 4. Intelligent Charging Monitor • Monitors key charging parameters like voltage, current, temperature, and efficiency in real time. • Alerts users to issues like overcurrent or overheating and offers customizable charging modes (e.g., Short Trip, Max Range). 5. Real-Time Driving and Charging Analytics • Tracks motor power output, torque, vehicle speed, and charging behavior during critical phases. • Recommends safer and more efficient habits to prevent cell imbalance or overheating. 6. Comprehensive Historical Timeline • Archives detailed driving and charging session data. • Helps users identify long-term trends and adopt healthier battery usage practices. 7. Weekly and Monthly Battery Reports • Generates battery health and performance reports with usage-based insights and improvement tips. • Helps users enhance battery life and EV efficiency. 8. Global Leaderboards • Compares battery health, charging efficiency, and energy usage with other Tesla drivers worldwide. • Encourages friendly competition and smarter battery habits. This app offers in-app purchases, including auto-renewable subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Teslameter.1 screens
Dr.EV4 screens

Verdict

The call

The clearest difference is review sentiment: Dr.EV at 88% against Teslameter.'s 0%. Dr.EV also leads on rating (4.8 vs 2.0) and ads (none vs shown). Teslameter.'s advantage is iOS requirement (12.0 vs 15.0). On price, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Teslameter. sells 1 one-off in-app purchase and Dr.EV sells 18 in-app purchases, starting at $4.49 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Dr.EV holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Dr.EV has 29 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 88% of Dr.EV's.

UpkeepUpdate frequency

Teslameter. ships an update every 12 months, Dr.EV every 5 days. The most recent releases landed on October 16, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 4 level
Teslameter. versus Dr.EV: the parameters behind the verdict, then further details
ParameterTeslameter.Dr.EV
PriceFreeFree
Rating2.0 (3 ratings)4.8 (29 ratings) — better
Positive reviews0.0% of reviews88.0% of reviews — better
Number of ratings329 — better
Update frequencyEvery 12 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.0
Further details — not scored
Size14 MB282 MB
Age rating4+4+
Developermargaret kovatchBATTER MACHINE Co.,Ltd

Customer experience

Teslameter.

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

Dr.EV

All ratings29 ratings
Positive96.6%
Neutral0.0%
Negative3.4%
Written reviews50 reviews
Positive88.0%
Neutral4.0%
Negative8.0%

In-app purchases

1 purchases

Teslameter.

One-time1
  • Remove Ads$1.99
18 purchases

Dr.EV

Subscriptions16
  • Pro Weekly (1 Vehicle)2 variants$4.497 Days
  • Pro Monthly Subscription$4.991 Month
  • Lite Monthly (1 Vehicle)1 Month trial$5.991 Month
Show 13 more
  • Pro Monthly (1 Vehicle)1 Month trial2 variants$8.991 Month
  • Pro Monthly (3 Vehicles)$17.901 Month
  • Pro Monthly (2 Vehicles)1 Month trial$17.991 Month
  • Pro Monthly (4 Vehicles)1 Month trial2 variants$23.491 Month
  • Pro Monthly (5 Vehicles)1 Month trial2 variants$29.001 Month
  • Pro Annual Subscription$34.991 Year
  • Pro Annual (1 Vehicle)2 variants$89.991 Year
  • Pro Annual (2 Vehicles)2 variants$119.001 Year
  • Pro Annual (3 Vehicles)$179.001 Year
  • Pro Annual (4 Vehicles)$234.991 Year
  • Pro Annual (5 Vehicles)$290.001 Year
  • Pro Annual (4 Vehicles)$359.991 Year
  • Pro Annual (5 Vehicles)$449.991 Year
One-time2
  • Lite Lifetime (1 Vehicle)$179.99
  • Pro Lifetime (1 Vehicle)$269.99

Questions

Is Teslameter. free?
Teslameter. is free to download, with in-app purchases available.
Is Dr.EV free?
Dr.EV is free to download, with in-app purchases available.
Which has better reviews, Teslameter. or Dr.EV?
Dr.EV is rated higher. Teslameter. averages 2.0 out of 5 from 3 ratings, while Dr.EV averages 4.8 from 29 ratings.
Do Teslameter. or Dr.EV have ads?
Teslameter. shows ads; Dr.EV does not.
Which is updated more often, Teslameter. or Dr.EV?
Teslameter. ships an update every 12 months, and Dr.EV every 5 days. Most recently, Teslameter. was updated on October 16, 2026 and Dr.EV on October 27, 2026.

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