# iDetector! vs PDF Merger Expert

The clearest difference is in-app purchases: PDF Merger Expert at none against iDetector!'s 1. PDF Merger Expert also leads on update cadence (every 3 days vs every 7 months) and review sentiment (100% vs 83%). iDetector!'s advantage is iOS requirement (5.1.1 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. iDetector! sells 1 one-off in-app purchase. PDF Merger Expert asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for iDetector! against 5.0 for PDF Merger Expert. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 83% of iDetector!'s written reviews are positive against 100% of PDF Merger Expert's.

iDetector! ships an update every 7 months, PDF Merger Expert every 3 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iDetector! | PDF Merger Expert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/idetector/id586504977/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-merger-expert/id6749808143/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 34 MB |
| Requires iOS | **5.1.1** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kobi Snir](https://appshunter.io/developer/393343394) | [StudyBridge LLC](https://appshunter.io/developer/1830101876) |

## What reviewers say

### iDetector!

[App page](https://appshunter.io/ios/app/idetector/id586504977)

This app alerts you if your device is touched or moved while you're away. Choose from motion, pocket, or power detection modes to secure your phone.

**Highlights:** Motion detection mode, Pocket/bag detection mode, Power connection/disconnection alarm, Customizable alarm triggers, Simple interface

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable Capture Mode & Remove Ads | $10.99 | one-time |


### PDF Merger Expert

[App page](https://appshunter.io/ios/app/pdf-merger-expert/id6749808143)

Easily combine, reorder, and manage PDF documents directly on your device. This app offers a fast, secure, and private solution with no internet connection required. Features include page removal, drag-and-drop reordering, and instant sharing.

**Highlights:** Merge multiple PDFs, Reorder pages with drag-and-drop, Remove unwanted pages, Save or share instantly, Works 100% offline, Dark Mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is iDetector! free?

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

### Is PDF Merger Expert free?

PDF Merger Expert is free to download, with no in-app purchases.

### Which has better reviews, iDetector! or PDF Merger Expert?

iDetector! and PDF Merger Expert are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do iDetector! or PDF Merger Expert have ads?

Neither iDetector! nor PDF Merger Expert shows ads.

### Which is updated more often, iDetector! or PDF Merger Expert?

iDetector! ships an update every 7 months, and PDF Merger Expert every 3 days. Most recently, iDetector! was updated on November 1, 2026 and PDF Merger Expert 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.*