F vs Defyx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
F
This app offers comprehensive online security and privacy features, including phishing detection, secure VPN access, and identity theft prevention. It protects your devices against cyber threats and provides tools like a password manager and ad blocker for a safer online experience.
- Phishing and scam detection
- Secure VPN for private browsing
- Safe online banking and shopping
- Dark web monitoring
- Ad Blocker for Safari
- Password manager
- Cross-device protection
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F-Secure all-in-one security makes online protection easy Choose the protection that matches your needs. Sign up in the app and get Mobile security subscription 14 days free. Mobile Security subscription: Security on the go • No more guessing – detect phishing websites, fake online stores, and SMS scams automatically. • Keep your money safe when banking, browsing, and shopping online. • Spot scams with Scam Scanner — upload a screenshot of anything suspicious and find out if it’s a scam. • Connect to any WiFi hotspot securely with a VPN and make your browsing private. • Prevent identity theft with 24/7 dark web monitoring and data breach alerts. • Eliminate excessive online ads and speed up page loading with Ad Blocker for Safari. Total subscription: complete protection on all devices • Everything included in Mobile security plus all the following benefits. • Protect all your PC, Mac, and mobile devices against cyber threats with one subscription. • Store and access passwords from any device with a password manager. F‑Secure VPN subscription If you only want to guard your privacy, you can get the F‑Secure VPN subscription. With it you only pay for F‑Secure VPN that allows you to browse privately, join any Wi-Fi hotspot safely, and change your IP address. Secure everything you do online F-Secure makes protecting everything you do online easy – whether it’s streaming your favorite show, connecting with family, managing your money, or saving priceless memories. Everything you need is in one app.
Defyx
This app provides secure and fast internet access with a focus on user privacy. It offers automatic setup, unlimited bandwidth, and end-to-end encryption to protect your data. The interface is clean and designed for ease of use, with features like Cloudflare DNS filtering for enhanced security.
- Secure, high-speed connections
- Automatic smart onboarding
- Unlimited bandwidth, no throttling
- Automatic best server selection
- End-to-end data encryption
- Strict no-logs policy
- Cloudflare DNS filtering
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Crafted for secure internet access, designed for everyone, everywhere Defyx is a privacy-first VPN app with user-friendly interaction, unique visual feedback, and upcoming AI-based security insights. Browse safely and protect your personal data with Defyx — a fast, modern, and easy-to-use VPN that puts your privacy first. Whether you're on public Wi-Fi or want extra peace of mind online, Defyx keeps your connection encrypted and private. Key Features: - Secure, high-speed connections - No setup needed — everything works automatically via smart onboarding - Unlimited bandwidth with no throttling or hidden limits - Automatically selects the best server for your location - End-to-end encryption for your data, wherever you go - Strict no-logs policy — we never track or store your activity - Lightweight, ad-supported experience to keep it free and sustainable - Clean, minimal interface designed for everyone — from first-time users to privacy experts - Cloudflare DNS filtering to block malicious content - Optimized for iPhone (iPad and Mac support coming soon) - Open-source commitment — we’ll publish our source code to promote transparency Focused on Privacy and Simplicity Defyx is built to help users stay secure on untrusted or public networks. Whether you're working remotely, traveling, or simply browsing privately, Defyx makes online protection easy and accessible. Coming Soon: More connection options and VPN protocols for increased reliability on complex networks. Take control of your privacy — with one tap.
Screenshots
Verdict
F and Defyx both sit at 4.4 stars, but that hides the real split: 81% of Defyx's written reviews are positive against 42% of F's. Defyx also leads on update cadence (every 10 days vs every 4 weeks). F's advantage is ads (none vs shown) and ratings volume (499 vs 55). On price, rating, in-app purchases and monetization model 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. F sells 3 one-off in-app purchases and Defyx sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.4 for F against 4.4 for Defyx. That said, the two scores are not equally well evidenced: F has 499 ratings behind it against 55, so its average is the more settled of the two. Written reviews are what separate them: 42% of F's written reviews are positive against 81% of Defyx's.
F ships an update every 4 weeks, Defyx every 10 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | F | Defyx |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (499 ratings) | 4.4 (55 ratings) — better |
| Positive reviews | 42.2% of reviews | 81.3% of reviews — better |
| Number of ratings | 499 — better | 55 |
| Update frequency | Every 4 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 273 MB | 172 MB |
| Age rating | 4+ | 12+ |
| Developer | F-Secure Corporation | UnboundTech UG (haftungsbeschraenkt) |
Customer experience
F
Defyx
Bugs and requests
F
Reported bugs
3 issues- Frequent login issues
- Compatibility problems with newer iOS versions
- Inconsistent browsing protection
Requested features
3 requests- Add DuckDuckGo search engine
- Improve VPN reliability and connectivity
- Streamline subscription management
Defyx
Not enough reviews yet to summarise bugs or requests.
In-app purchases
F
- F-Secure VPN - 12 Months$34.99
- Mobile Security - 12 Months$44.99
- Total - 12 months 5 devices$89.99
Defyx
- Defyx Balance – 1 Credit$0.99
- Defyx Balance – 2 Credits$1.99
- Defyx Balance – 3 Credits$2.99
Show 2 moreShow fewer
- Defyx Balance – 5 Credits$3.99
- Defyx Balance – 10 Credits$8.99









