# MillerTech vs Magnetometer

The clearest difference is price: MillerTech at Free against Magnetometer's $0.99. MillerTech also leads on update cadence (every 2 months vs every 34 months) and review sentiment (100% vs 86%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

MillerTech is free to download; Magnetometer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.3 for MillerTech against 4.4 for Magnetometer. Both are backed by a comparable volume of ratings — 6 and 13 respectively. Written reviews are what separate them: 100% of MillerTech's written reviews are positive against 86% of Magnetometer's.

MillerTech ships an update every 2 months, Magnetometer every 34 months. The most recent releases landed on June 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | MillerTech | Magnetometer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/millertech/id1628834753/reviews) | **[4.4 (13 ratings)](https://appshunter.io/ios/app/magnetometer/id1662997574/reviews)** |
| Number of ratings | 6 | **13** |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 34 months |
| Monetization | **Free** | Paid |
| Size | 42 MB | 2 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lester Miller](https://appshunter.io/developer/1646174937) | [Bogdan Gavriluta](https://appshunter.io/developer/1584690995) |

## What reviewers say

### MillerTech

[App page](https://appshunter.io/ios/app/millertech/id1628834753)

Monitor your lithium batteries with Bluetooth technology. Get instant access to key battery stats like voltage, state-of-charge, and real-time power usage. Enhance your experience and gain peace of mind with at-a-glance data.

**Highlights:** Bluetooth battery monitoring, Real-time power usage, Battery voltage display, State-of-Charge tracking, Design and remaining capacity

**Features:** macOS Compatibility

**In-app purchases:** none


### Magnetometer

[App page](https://appshunter.io/ios/app/magnetometer/id1662997574)

This application uses your iPhone's compass to detect electromagnetic interference, helping you find metal objects or magnets. It's designed for fun and experimental purposes, not as a professional tool. Discover hidden metal items or simply explore the magnetic fields around you.

**Highlights:** Detects metal and magnets, Uses iPhone's compass, Measures EMF interference, Fun and experimental use, Simple user interface

**In-app purchases:** none


## Frequently asked questions

### Is MillerTech free?

MillerTech is free to download, with no in-app purchases.

### Is Magnetometer free?

Magnetometer costs $0.99, with no in-app purchases.

### Which has better reviews, MillerTech or Magnetometer?

Magnetometer is rated higher. MillerTech averages 4.3 out of 5 from 6 ratings, while Magnetometer averages 4.4 from 13 ratings.

### Do MillerTech or Magnetometer have ads?

Neither MillerTech nor Magnetometer shows ads.

### Which is updated more often, MillerTech or Magnetometer?

MillerTech ships an update every 2 months, and Magnetometer every 34 months. Most recently, MillerTech was updated on June 10, 2026 and Magnetometer on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*