ProSurf vs Knack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ProSurf
This app transforms your iOS device into a secure kiosk by restricting access to only approved websites. It offers extensive customization to create a controlled browsing environment for business use.
- Lockdown to specific websites
- Hide address bar
- Incognito mode
- Single & Multi-tab support
- Control navigation
- Clear cache and cookies
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ProSurf Kiosk Lockdown Browser is a free, secure browser for iOS that locks down your iPad & iPhone into an interactive kiosk by allowing only business specific websites. It helps you create a safe browsing environment in iOS devices. Key Features of ProSurf Kiosk Lockdown Browser: * Lockdown your iOS devices to a specific website * Hide the address bar to block users from typing URLs * Run sites in incognito mode * Add browser shortcut on the device home screen * Single & Multi-tab support * Allow & disallow users to view download files * Allow & disallow back/forward navigation * Allow & disallow touch interface * Allow & disallow Javascript popups * Clear cache and cookies in the interval * Control full screen more * Control zoom in/out You can use the browser to whitelist as many sites as you want and set custom properties against each website. Set additional properties like hiding the navigation bar, or hiding the URL address bar to get a complete Kiosk experience combined with Guided Access mode of iOS devices. Once installed open the application and click on Getting Started to see the controls and options that ProSurf offers. The default passcode to access Settings is 2323. Click on the Settings icon on the home page and start configuring ProSurf for your needs.
Knack
This secure work browser for iOS focuses on human-centric security to prevent threats at the point-of-click. It analyzes how information is presented and user interaction to create a safer browsing experience for professionals.
- Human-centric security approach
- Threat prevention at point-of-click
- Analysis of information presentation
- Analysis of user interaction
- Designed for iOS devices
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Knack by Keep Aware is the safe work browser built for iOS. While traditional, technology-based security solutions are designed to prevent attacks from machine processes, events, and connections, Keep Aware focuses on threats that target people where they work, the web browser. Keep Aware combines the analysis of how information is presented to people, and how they interact with it, to create a human-centric solution that prevents threats at the point-of-click. To connect Knack to your organization's Keep Aware environment, contact your organization's IT security team.
Screenshots
Verdict
The clearest difference is review sentiment: Knack at 100% against ProSurf's 50%. Knack also leads on rating (4.8 vs 3.2). ProSurf's advantage is iOS requirement (12.0 vs 16.0). On price, ratings volume, update cadence 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Knack holds the better App Store score, 4.8 against 3.2. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews point the same way: 50% of ProSurf's written reviews are positive against 100% of Knack's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 8, 2026 and July 28, 2026 respectively.
| Parameter | ProSurf | Knack |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (6 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 4 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 31 MB | 114 MB |
| Age rating | 17+ | 17+ |
| Developer | Promobi Technologies | Keep Aware, Inc. |
Customer experience
ProSurf
Knack
In-app purchases
ProSurf
No in-app purchases
Knack
No in-app purchases








