# SAR21 vs Watch Tower Pro

The clearest difference is price: SAR21 at Free against Watch Tower Pro's $4.99. SAR21 also leads on rating (5.0 vs 4.2) and iOS requirement (15.1 vs 17.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

SAR21 is free to download; Watch Tower Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SAR21 holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

SAR21 ships an update every 9 days, Watch Tower Pro every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SAR21 | Watch Tower Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sar21/id6747093593/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/watch-tower-pro/id6787942323/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | — | Paid |
| Size | 26 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Justin Calamia](https://appshunter.io/developer/1819822028) | [Blackfox Media LLC](https://appshunter.io/developer/6784485016) |

## What reviewers say

### SAR21

[App page](https://appshunter.io/ios/app/sar21/id6747093593)

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

**In-app purchases:** none


### Watch Tower Pro

[App page](https://appshunter.io/ios/app/watch-tower-pro/id6787942323)

This app maps over 648,000 public surveillance cameras globally, including traffic, police, and CCTV. It provides privacy awareness by showing camera locations and offering optional proximity alerts, allowing informed decisions about your surroundings. The entire database is available offline.

**Highlights:** Global public camera database (648,000+), Offline functionality, Proximity alerts for cameras, Color-coded camera types, Search by location, Report missing cameras

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

**In-app purchases:** none


## Frequently asked questions

### Is SAR21 free?

SAR21 is free to download, with no in-app purchases.

### Is Watch Tower Pro free?

Watch Tower Pro costs $4.99, with no in-app purchases.

### Which has better reviews, SAR21 or Watch Tower Pro?

SAR21 is rated higher. SAR21 averages 5.0 out of 5 from 2 ratings, while Watch Tower Pro averages 4.2 from 5 ratings.

### Do SAR21 or Watch Tower Pro have ads?

Neither SAR21 nor Watch Tower Pro shows ads.

### Which is updated more often, SAR21 or Watch Tower Pro?

SAR21 ships an update every 9 days, and Watch Tower Pro every 2 weeks. Most recently, SAR21 was updated on October 24, 2026 and Watch Tower Pro on October 25, 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.*