# PrerAp vs Device Signal Detector Spy Pro

The clearest difference is in-app purchases: PrerAp at none against Device Signal Detector Spy Pro's 4. PrerAp also leads on ads (none vs shown) and device support (3 vs 1). Device Signal Detector Spy Pro's advantage is rating (4.7 vs 4.5) and ratings volume (7 vs 2). On price there is nothing between them.

Both are free to download. Device Signal Detector Spy Pro sells 4 in-app purchases, starting at $8.99 per 7 days. PrerAp asks for nothing beyond the download.

Device Signal Detector Spy Pro holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

## The numbers

| Metric | PrerAp | Device Signal Detector Spy Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/prerap/id1660054792/reviews) | **[4.7 (7 ratings)](https://appshunter.io/ios/app/device-signal-detector-spy-pro/id6746758038/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 23 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Evolve (RDC)](https://appshunter.io/developer/1567017217) | [Xander Renson](https://appshunter.io/developer/1818350152) |

## What reviewers say

### PrerAp

[App page](https://appshunter.io/ios/app/prerap/id1660054792)

This app allows voters to securely store their biographical information and generate QR codes. These codes can then be scanned during enrollment to quickly retrieve data, significantly reducing wait times at registration centers.

**Highlights:** Biographical data storage, QR code generation, Reduced registration time, Data retrieval via scanning

**Features:** macOS Compatibility

**In-app purchases:** none


### Device Signal Detector Spy Pro

[App page](https://appshunter.io/ios/app/device-signal-detector-spy-pro/id6746758038)

Detects nearby wireless activity and connected devices using Wi-Fi and Bluetooth scanning. Features an infrared tool to visually identify potential hidden electronics. Organizes scan history and provides insights for understanding results and staying aware of your surroundings.

**Highlights:** Wi-Fi and Bluetooth scanning, Infrared (IR) scanning tool, Scan history organization, Real-time detection, IP history tracking, Ad-free experience with subscription

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Device Signal Detector Spy Pro | $8.99 | per 7 days |
| dsdspWeekly | $8.99 | per 7 days |
| dsdspMonthly | $14.99 | per month |
| dsdspMonthlyTrial | $15.99 | per month |


## Frequently asked questions

### Is PrerAp free?

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

### Is Device Signal Detector Spy Pro free?

Device Signal Detector Spy Pro is free to download, with in-app purchases available.

### Which has better reviews, PrerAp or Device Signal Detector Spy Pro?

Device Signal Detector Spy Pro is rated higher. PrerAp averages 4.5 out of 5 from 2 ratings, while Device Signal Detector Spy Pro averages 4.7 from 7 ratings.

### Do PrerAp or Device Signal Detector Spy Pro have ads?

Device Signal Detector Spy Pro shows ads; PrerAp does not.

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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.*