Comparison

Onion Browser vs Watch Tower Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Onion Browser

This app provides a secure and private way to browse the internet using the Tor network. It protects your privacy from trackers, secures your traffic on public Wi-Fi, and allows access to .onion sites. It also offers features to block scripts and clear cookies automatically.

Highlights
  • Browse internet over Tor
  • Protect privacy from website tracking
  • Secure traffic on insecure networks
  • Access .onion sites
  • Block scripts
  • Automatically clear cookies and tabs
Features
Read full description

Onion Browser is the original free and open-source Tor-powered web browser for iOS. Onion Browser helps you access the internet with more safety and privacy, and no extra cost to you. “The best Tor-related offering on iOS right now is Onion Browser” - The Daily Dot, October 14, 2015. Featured in: The New York Times, The Guardian, Salon, TechCrunch, Gizmodo, Boing Boing, Lifehacker, Macworld, The Daily Dot, & others. FEATURES: • Browse the internet over Tor: - Protect your privacy from website tracking - Secure your traffic from insecure wireless networks and ISPs - Access .onion sites that are only accessible over Tor. • Fight online tracking: block scripts and automatically clear cookies and tabs, based on your preferences. • And more privacy-enhancing features! DISCLAIMERS: - Web browsing is much slower than through a normal web browser or a VPN because your traffic is encrypted and relayed through the Tor network. - Onion Browser might not work on networks with advanced network restrictions. If the app does not connect, try using bridges (or a different type of bridge), force-quit, and then restart the app. - Use of Onion Browser is at your own risk; remember that sensitive data does not always belong on a mobile device. ** Onion Browser is free and open-source software. You can read more about Onion Browser and how to support development of Tor on iOS by visiting onionbrowser.com **

About

Watch Tower Pro

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
Read full description

Watch Tower Pro maps 670,000+ publicly documented surveillance cameras worldwide — government CCTV, police license-plate readers (ALPR), speed and red-light enforcement, traffic monitoring, and dome cameras — and alerts you before you walk or drive into range. Most people pass a dozen cameras a day without noticing. Watch Tower Pro is a privacy-awareness tool: it shows you what's documented so you can make informed decisions about where you go and how you get there. WHAT'S NEW IN 1.4.2 - Refreshed worldwide database: 670,344 cameras, rebuilt across all seven continents and de-duplicated so no two entries share a location. - Wider detection of mapped cameras, especially speed, red-light and plate-reader sites. - Fixes to the camera-reporting screen and the Settings source list. WHAT IT DOES - Works completely offline. The entire worldwide database ships inside the app — no signal needed, no server to query. - Color-codes every camera by type so you can tell an ALPR from a traffic cam at a glance. - Optional proximity alerts: a local notification when you enter the range of an alert-eligible camera. Choose which types alert you and how close. - Travel mode widens coverage automatically when you're driving so alerts fire at highway speed. - Nearby list ranks every documented camera within 8 km by distance, with the operator where known. - Directions to any camera, plus a link to its public source record. WHAT IT DOESN'T DO - No accounts. No login. No analytics. No tracking. No ads. - Your location never leaves your device. Alerts use iOS region monitoring entirely on the phone. - We do not collect, store, or transmit any personal data. Camera reports are ordinary emails you send yourself. - We do not include residential cameras (Ring, Blink, Nest, etc.). Their locations aren't public, and aggregating them would be wrong. LIMITATIONS Public databases lag reality. A missing marker does not mean there's no camera there — treat all public space as observed. Reported cameras are reviewed by a person and added in the next data update, never posted automatically. DATA SOURCES Almost every location comes from OpenStreetMap (© OpenStreetMap contributors, ODbL), including the plate-reader locations, which are ordinary OpenStreetMap nodes. A smaller set comes from camera feeds published openly by government transportation agencies. Each camera's detail screen credits its source and links to the original record. Watch Tower Pro is informational, not legal advice. By using it you agree to use it for lawful, defensive privacy-awareness purposes only. Made by BlackFox Media LLC.

Screenshots

Onion Browser4 screens
Watch Tower Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Watch Tower Pro at 100% against Onion Browser's 41%. Watch Tower Pro also leads on rating (4.2 vs 3.2) and in-app purchases (none vs 3). Onion Browser's advantage is price (Free vs $4.99) and ratings volume (2.1K vs 5). On update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Onion Browser is free to download; Watch Tower Pro costs $4.99 up front. Onion Browser sells 3 one-off in-app purchases. Watch Tower Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Watch Tower Pro holds the better App Store score, 4.2 against 3.2. That said, the two scores are not equally well evidenced: Onion Browser has 2.1K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 41% of Onion Browser's written reviews are positive against 100% of Watch Tower Pro's.

UpkeepUpdate frequency

Onion Browser ships an update monthly, Watch Tower Pro every 2 weeks. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
Onion Browser versus Watch Tower Pro: the parameters behind the verdict, then further details
ParameterOnion BrowserWatch Tower Pro
PriceFree — better$4.99
Rating3.2 (2.1K ratings)4.2 (5 ratings) — better
Positive reviews40.9% of reviews100.0% of reviews — better
Number of ratings2.1K — better5
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size88 MB23 MB
Age rating17+4+
DeveloperMike TigasBlackfox Media LLC

Customer experience

Onion Browser

All ratings2,132 ratings
Positive52.4%
Neutral8.1%
Negative39.4%
Written reviews430 reviews
Positive40.9%
Neutral7.0%
Negative52.1%

Watch Tower Pro

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Onion Browser

Reported bugs

4 issues
  • Fails to connect to Tor network
  • Crashes or freezes when switching apps
  • Compatibility issues with newer iOS versions
  • Inability to disable JavaScript completely

Requested features

4 requests
  • Add option to disable JavaScript
  • Improve tab management and browsing experience
  • Integrate with more privacy-focused search engines
  • Allow setting custom default search engine

Watch Tower Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Onion Browser

One-time3
  • Small Onion Browser Tip$0.99
  • Medium Onion Browser Tip$4.99
  • Large Onion Browser Tip$9.99
None

Watch Tower Pro

No in-app purchases

Questions

Is Onion Browser free?
Onion Browser is free to download, with in-app purchases available.
Is Watch Tower Pro free?
Watch Tower Pro costs $4.99, with no in-app purchases.
Which has better reviews, Onion Browser or Watch Tower Pro?
Watch Tower Pro is rated higher. Onion Browser averages 3.2 out of 5 from 2.1K ratings, while Watch Tower Pro averages 4.2 from 5 ratings.
Do Onion Browser or Watch Tower Pro have ads?
Neither Onion Browser nor Watch Tower Pro shows ads.
Which is updated more often, Onion Browser or Watch Tower Pro?
Onion Browser ships an update monthly, and Watch Tower Pro every 2 weeks. Most recently, Onion Browser was updated on October 20, 2026 and Watch Tower Pro on October 2, 2026.

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