# TwinMind vs Magnetometer+ Metal Detector

The clearest difference is rating: TwinMind at 4.8 against Magnetometer+ Metal Detector's 3.0. TwinMind also leads on ads (none vs shown) and ratings volume (927 vs 8). Magnetometer+ Metal Detector's advantage is in-app purchases (none vs 4) and review sentiment (100% vs 78%). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. TwinMind sells 4 in-app purchases, starting at $14.99 per month. Magnetometer+ Metal Detector asks for nothing beyond the download.

TwinMind holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: TwinMind has 927 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 78% of TwinMind's written reviews are positive against 100% of Magnetometer+ Metal Detector's, so the app with the better star average is not the one people write more warmly about.

TwinMind ships an update weekly, Magnetometer+ Metal Detector every 5 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | TwinMind | Magnetometer+ Metal Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (927 ratings)](https://appshunter.io/ios/app/twinmind-ai-notes-and-memory/id6504585781/reviews)** | [3.0 (8 ratings)](https://appshunter.io/ios/app/magnetometer-plus-metal-detector/id6760181481/reviews) |
| Number of ratings | **927** | 8 |
| Positive reviews | 78.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 136 MB | 62 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ThirdEar AI Inc](https://appshunter.io/developer/1752953181) | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) |

## What reviewers say

### TwinMind

[App page](https://appshunter.io/ios/app/twinmind-ai-notes-and-memory/id6504585781)

This app acts as an AI-powered second brain, capturing and transcribing your conversations, meetings, and lectures. It automatically generates summaries, suggests tasks, and builds a searchable memory bank for personalized assistance and content generation, all while prioritizing user privacy.

**Highlights:** AI-powered transcription, Automated summaries and action items, Searchable memory bank, Personalized AI suggestions, Content generation (emails, study guides), On-device transcription, Privacy-focused data handling

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TwinMind PRO (Monthly) | $14.99 | per month |
| TwinMind MAX (Monthly) | $49.99 | per month |
| TwinMind PRO (Annual) | $143.99 | per year |
| TwinMind MAX (Yearly) | $359.99 | per year |

**What reviewers like**

- 🚀 Incredibly useful app
- 🚀 Huge time saver
- 🚀 Best meeting notes
- 🚀 Saving me hours a day
- 🚀 Memory Bank

**Requested features**

- Capture widget for quick access


### Magnetometer+ Metal Detector

[App page](https://appshunter.io/ios/app/magnetometer-plus-metal-detector/id6760181481)

Transform your device into a magnetic field detector. It measures magnetic field strength in real-time with a 3-axis display and provides visual alerts for metal and magnet detection. Explore the invisible magnetic world around you with a sleek, intuitive interface.

**Highlights:** Real-time magnetic field measurement, 3-axis directional analysis, Metal and magnet detection alerts, Radar-style magnetic scanner, N/S/E/W compass markings, Adjustable sensitivity

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TwinMind free?

TwinMind is free to download, with in-app purchases available.

### Is Magnetometer+ Metal Detector free?

Magnetometer+ Metal Detector is free to download, with no in-app purchases.

### Which has better reviews, TwinMind or Magnetometer+ Metal Detector?

TwinMind is rated higher. TwinMind averages 4.8 out of 5 from 927 ratings, while Magnetometer+ Metal Detector averages 3.0 from 8 ratings.

### Do TwinMind or Magnetometer+ Metal Detector have ads?

Magnetometer+ Metal Detector shows ads; TwinMind does not.

### Which is updated more often, TwinMind or Magnetometer+ Metal Detector?

TwinMind ships an update weekly, and Magnetometer+ Metal Detector every 5 days. Most recently, TwinMind was updated on November 4, 2026 and Magnetometer+ Metal Detector on October 31, 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.*