Comparison

Guardian Firewall + VPN vs Perimeter

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

Head to head
About

Guardian Firewall + VPN

This app protects your personal data by blocking unauthorized trackers and providing a secure VPN connection. It shields your sensitive information from third parties, hackers, and insecure websites, offering enhanced privacy and security for your digital life.

Highlights
  • Blocks unauthorized trackers
  • Secure VPN connection
  • Protects passwords and sensitive data
  • Customizable blocklists (Pro)
  • Push notifications for unwanted connections (Pro)
  • Family sharing of subscriptions (Pro)
Features
Read full description

Take back control of your personal data with the protection of Guardian Firewall and VPN. We believe people should be able to use apps on their digital devices without their data being sold to unknown third parties. Data that you’re not always aware that you’re sharing, such as confidential information, travel patterns, and lifestyle. Guardian Firewall blocks unauthorized third parties from secretly collecting your personal information while adding an extra layer of security from hackers and insecure websites with our powerful VPN, protecting passwords, search history, and other sensitive data. Our Guardian Pro subscription service is the protection of Guardian with the following additional features: • Customized Blocklists: Add individual hosts or IP addresses to be effectively blocked, as well as try our experimental Guardian-curated firewall rules, for a privacy experience tuned to your needs • Push Notifications: Instant notifications when your device attempts to connect to an unwanted connection to further assist in identifying a culprit app or website. Easily filter notifications by type of Alert • Generate & Export Credentials: Create additional sets of VPN credentials to secure your other devices capable of establishing IKEv2 or WireGuard connections (includes ability to export preset .mobileconfig or .conf files for IKEv2 or WireGuard respectively) • Family Sharing of subscriptions is now available to Pro users. Share your subscription to 5 additional family members (5 different Apple IDs) with no additional cost. Guardian Day Passes are available for $0.99 each in 24 hour increments. Purchase as many Day Passes as you’d like, choose to activate some right away, or share a few with friends and family. Guardian subscription service is available for $9.99 per month, or $99.99 per year Guardian Pro subscription service is available for $149.99 per year. Highlights: • Firewall: Block unwanted connections to location trackers, mail trackers, generic data trackers, and other online nuisances. • VPN: All internet activity is sent through a persistent, fast, and secure, IKEv2 or WireGuard based tunnel, keeping internet service providers, hackers, and other unwanted entities from accessing your personal data. • Privacy: Your VPN connection is authenticated with an automatically generated random identity, enabling access only by using the digital In-App Purchase receipt stored on your mobile device after purchase. (No personal information needed) • Best In-Class IKEv2 Encryption: Data sent through the VPN tunnel using IKEv2/IPsec is encrypted using AES-256 to protect against interception by unauthorized parties. • Support For Modern Standards: WireGuard connections are available on every server allowing you to freely choose which transport protocol to use without any compromises. • Mask your IP: Your IP address and other device identifiers will be masked from third-parties in order to help protect your identity. • Region Selection: Control your connection by selecting regions such as the United States, England, the Netherlands, Germany, Japan, Switzerland, Singapore and many more, that cover our global network of servers. • Safe Browsing: Aggressive ads and web page hijackers are blocked by the Firewall, giving you an uninterrupted web browsing experience in any browser, without the need for browser extensions with direct access to your web browser. • Alerts and Alert Filtering: Swipe up on the Alert menu to view all blocked, unwanted connections. Easily filter by type, or tap an Alert for more detailed information. • Fast Connection: No impact on speed or performance. • Support up to five iOS devices using the same AppleID • Contact Technical Support available in-app for any questions or issues Privacy Policy & Terms of Service: https://guardianapp.com/privacy-policy/ Please contact support@guardianapp.com with any questions, concerns, or reports of potential security issues.

About

Perimeter

Read full description

AWARENESS FOR THE CONNECTED WORLD Perimeter helps you understand the connected technology around you. Built with patent-pending technology, Perimeter observes supported wireless signals and helps identify patterns that may be consistent with potentially unwanted trackers, smart glasses, and other privacy-relevant devices—then surfaces what deserves your attention. QUIET MONITORING Perimeter can monitor supported Bluetooth activity in the background and notify you when a finding meets its alert criteria. When nothing meaningful appears, it stays out of the way. SCAN YOUR SURROUNDINGS Use Area Scan for a quick look at nearby Bluetooth activity and anything Perimeter believes deserves a closer look. CHECK A PLACE Take a closer look at a hotel, rental, room, or unfamiliar location using Bluetooth observations, local-network clues, and optional guided physical checks. JOURNEY MODE Look for relevant signals that persist as your surroundings change—helping distinguish something that stays with you from activity that simply happens to be nearby. SMART-GLASSES AWARENESS Perimeter can surface supported signal patterns that may be consistent with smart glasses, while clearly communicating the strength and limitations of the available evidence. FOUND A PHYSICAL TRACKER? Photograph what you found, check compatible NFC information, and review practical next steps. PRIVATE BY DESIGN Perimeter processes observations on your iPhone. No account is required, and your scan history and location context remain on your device. HONEST ABOUT LIMITATIONS Wireless detection has real limits. Perimeter cannot detect every tracker, camera, recorder, wearable, or surveillance method, and some nearby devices may produce no signal your iPhone can observe. Perimeter separates observation from identification and communicates uncertainty when the evidence is incomplete rather than guessing. Perimeter is designed to provide awareness, context, and practical next steps—not a guarantee that an environment is safe.

Screenshots

Guardian Firewall + VPN4 screens
Perimeter4 screens

Verdict

The call

The clearest difference is in-app purchases: Perimeter at none against Guardian Firewall + VPN's 7. Perimeter also leads on update cadence (every 2 days vs every 2 months). Guardian Firewall + VPN's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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

Both are free to download. Guardian Firewall + VPN sells 7 in-app purchases, starting at $9.99 per month. Perimeter asks for nothing beyond the download.

UpkeepUpdate frequency

Guardian Firewall + VPN ships an update every 2 months, Perimeter every 2 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Guardian Firewall + VPN versus Perimeter: the parameters behind the verdict, then further details
ParameterGuardian Firewall + VPNPerimeter
PriceFreeFree
Rating4.6 (873 ratings) — better—
Positive reviews45.7% of reviews—
Number of ratings873 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperSudo Security Group, IncClassy Methods

Bugs and requests

Guardian Firewall + VPN

Reported bugs

3 issues
  • Login failures on startup
  • Randomly disables VPN protection
  • Crashes and freezes on certain devices

Requested features

5 requests
  • More granular control over blocking
  • Ability to whitelist apps/domains
  • Location server selection
  • Detailed logging and reporting
  • Widget for quick on/off access

Perimeter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Guardian Firewall + VPN

Subscriptions4
  • Guardian Firewall (Monthly)$9.991 Month
  • Quarterly$26.993 Months
  • Guardian Firewall (Annual)$99.991 Year
Show 1 more
  • Guardian Pro (Annual)$149.991 Year
One-time3
  • Guardian Firewall (Day Pass)$0.99
  • Guardian Day Pass (Multiple)$0.99
  • Introductory Offer$0.99
None

Perimeter

No in-app purchases

Questions

Is Guardian Firewall + VPN free?
Guardian Firewall + VPN is free to download, with in-app purchases available.
Is Perimeter free?
Perimeter is free to download, with no in-app purchases.
Do Guardian Firewall + VPN or Perimeter have ads?
Neither Guardian Firewall + VPN nor Perimeter shows ads.
Which is updated more often, Guardian Firewall + VPN or Perimeter?
Guardian Firewall + VPN ships an update every 2 months, and Perimeter every 2 days. Most recently, Guardian Firewall + VPN was updated on November 6, 2026 and Perimeter on October 31, 2026.

Other comparisons