# i Metal Detector vs TRU Deep Map

The clearest difference is ads: TRU Deep Map at none against i Metal Detector's shown. TRU Deep Map also leads on update cadence (every 5 days vs every 2 months) and iOS requirement (10.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

i Metal Detector ships an update every 2 months, TRU Deep Map every 5 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | i Metal Detector | TRU Deep Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (26 ratings)](https://appshunter.io/ios/app/i-metal-detector/id1032659582/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 29.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 88 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Thompson Rivers University](https://appshunter.io/developer/1561385170) |

## What reviewers say

### i Metal Detector

[App page](https://appshunter.io/ios/app/i-metal-detector/id1032659582)

This utility app uses your iPhone's magnetic field sensor to detect nearby metal objects. Simply hold your device closer to potential metal items to gauge their magnetic field strength. Be cautious with strong magnets to avoid damaging your iPhone.

**Highlights:** Detects metal with magnetic field sensor, Measures magnetic field variations, Proximity-based detection, Works on iPhone and iPad

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### TRU Deep Map

[App page](https://appshunter.io/ios/app/tru-deep-map/id1561385168)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i Metal Detector free?

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

### Is TRU Deep Map free?

TRU Deep Map is free to download, with no in-app purchases.

### Do i Metal Detector or TRU Deep Map have ads?

i Metal Detector shows ads; TRU Deep Map does not.

### Which is updated more often, i Metal Detector or TRU Deep Map?

i Metal Detector ships an update every 2 months, and TRU Deep Map every 5 days. Most recently, i Metal Detector was updated on November 6, 2026 and TRU Deep Map on October 30, 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.*