# Tracker Detect vs Cairn Maps

The clearest difference is in-app purchases: Cairn Maps at none against Tracker Detect's 3. Cairn Maps also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Tracker Detect sells 3 in-app purchases, starting at $9.99 per 7 days. Cairn Maps asks for nothing beyond the download.

Tracker Detect ships an update every 4 days, Cairn Maps every 6 days. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Tracker Detect | Cairn Maps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (214 ratings)](https://appshunter.io/ios/app/tracker-detect-trackersonar/id6753645096/reviews)** | — |
| Number of ratings | **214** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 6 days |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 15 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [METKO LABS BILISIM ITHALAT VE IHRACAT TICARET LIMITED SIRKETI](https://appshunter.io/developer/1671640855) | [YMMV](https://appshunter.io/developer/1224453829) |

## What reviewers say

### Tracker Detect

[App page](https://appshunter.io/ios/app/tracker-detect-trackersonar/id6753645096)

This app helps you find lost items and detect hidden tracking devices using Bluetooth scanning. It offers real-time distance tracking and a hot/cold finder to guide you to your target. Protect your privacy by identifying unauthorized trackers.

**Highlights:** Detect AirTags, Tiles, and Bluetooth devices, Real-time distance tracking, Hot/Cold proximity finder, Privacy protection from unauthorized trackers, Smart BLE scanner with signal strength, Device identification and history

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tracker Finder | $9.99 | per 7 days |
| Tracker Finder | $19.99 | per month |
| Tracker Finder | $39.99 | per year |


### Cairn Maps

[App page](https://appshunter.io/ios/app/cairn-maps/id6756520443)

**In-app purchases:** none


## Frequently asked questions

### Is Tracker Detect free?

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

### Is Cairn Maps free?

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

### Do Tracker Detect or Cairn Maps have ads?

Tracker Detect shows ads; Cairn Maps does not.

### Which is updated more often, Tracker Detect or Cairn Maps?

Tracker Detect ships an update every 4 days, and Cairn Maps every 6 days. Most recently, Tracker Detect was updated on October 18, 2026 and Cairn Maps on October 14, 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.*