# Spy Detector vs Esign

The clearest difference is rating: Spy Detector at 4.8 against Esign's 4.3. Spy Detector also leads on iOS requirement (14.0 vs 17.2). Esign's advantage is update cadence (every 2 weeks vs monthly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Spy Detector sells 3 in-app purchases, starting at $6.99 per 7 days and Esign sells 1 in-app purchase, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Spy Detector holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 12 and 24 respectively.

Spy Detector ships an update monthly, Esign every 2 weeks. The most recent releases landed on October 28, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Spy Detector | Esign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/spy-detector-security-scanner/id6751642484/reviews)** | [4.3 (24 ratings)](https://appshunter.io/ios/app/esign-fill-out-documents/id6753958207/reviews) |
| Number of ratings | 12 | **24** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 63 MB | 16 MB |
| Requires iOS | **14.0** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [胭 李](https://appshunter.io/developer/1775102138) | [ALURA STANKEY](https://appshunter.io/developer/1851711070) |

## What reviewers say

### Spy Detector

[App page](https://appshunter.io/ios/app/spy-detector-security-scanner/id6751642484)

This app helps you enhance your personal security by scanning your surroundings for unauthorized devices and unusual reflections. It offers quick checks and an intuitive interface to provide peace of mind in various locations.

**Highlights:** Network scan for unknown devices, Bluetooth device detection, Light and reflection filter, Quick instant scans, Intuitive user interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spy Detector Pro Week | $6.99 | per 7 days |
| Spy Detector Pro Month | $14.99 | per month |
| Spy Detector Pro year | $29.99 | per year |


### Esign

[App page](https://appshunter.io/ios/app/esign-fill-out-documents/id6753958207)

This app transforms your device into a powerful tool for electronic signatures. Easily sign, fill, and send documents from anywhere. Create a unique signature with your finger or stylus for fast, secure, and simple document handling.

**Highlights:** Import and manage documents, Create and save electronic signatures, Fill out forms and edit documents, Sign and share PDFs, Secure document storage

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly king of eSigner | $6.99 | per 7 days |


## Frequently asked questions

### Is Spy Detector free?

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

### Is Esign free?

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

### Which has better reviews, Spy Detector or Esign?

Spy Detector is rated higher. Spy Detector averages 4.8 out of 5 from 12 ratings, while Esign averages 4.3 from 24 ratings.

### Do Spy Detector or Esign have ads?

Neither Spy Detector nor Esign shows ads.

### Which is updated more often, Spy Detector or Esign?

Spy Detector ships an update monthly, and Esign every 2 weeks. Most recently, Spy Detector was updated on October 28, 2026 and Esign on October 20, 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.*