Ninja Browser for iPhone vs Knack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ninja Browser for iPhone
Quickly conceal your browsing activity with a simple gesture. This app allows you to hide your screen instantly without any audible cues, ensuring your privacy is maintained.
- Instant screen hiding
- Gesture controls (flick or multi-finger touch)
- Silent operation
- Privacy enhancement
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Want to hide your browser quickly ? If so, use NINJA BROWSER ! This application can hide your screen without any click sounds. Just Flick the Left or Right. Or Touch your screen with two or three finger. Your browser will hide Soon !! Try It !!
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 Ninja Browser for iPhone's 50%. Knack also leads on ads (none vs shown) and monetization model (free vs ad-supported). Ninja Browser for iPhone's advantage is update cadence (fortnightly vs every 2 months) and rating (5.0 vs 4.8). On price, ratings volume, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ninja Browser for iPhone holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews complicate that: 50% of Ninja Browser for iPhone's written reviews are positive against 100% of Knack's, so the app with the better star average is not the one people write more warmly about.
Ninja Browser for iPhone ships an update fortnightly, Knack every 2 months. The most recent releases landed on October 4, 2026 and September 26, 2026 respectively.
| Parameter | Ninja Browser for iPhone | Knack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.8 (4 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 4 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 20 MB | 114 MB |
| Age rating | 17+ | 17+ |
| Developer | Sho Kurozumi | Keep Aware, Inc. |
Customer experience
Ninja Browser for iPhone
Knack
In-app purchases
Ninja Browser for iPhone
No in-app purchases
Knack
No in-app purchases
Questions
Is Ninja Browser for iPhone free?
Is Knack free?
Which has better reviews, Ninja Browser for iPhone or Knack?
Do Ninja Browser for iPhone or Knack have ads?
Which is updated more often, Ninja Browser for iPhone or Knack?
Other comparisons
