Comparison

FKey Browser vs Onion Browser

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

Head to head
About

FKey Browser

This web browser is designed for iOS devices, offering specialized keyboard support for sending function keys. It's particularly useful for accessing certain mainframe emulators and websites that require F-key input. Users can access custom configurations through ads or a subscription for unlimited, ad-free use.

Highlights
  • F-Key keyboard support
  • Mainframe emulator compatibility
  • Custom keyboard configurations
  • Rewarded ad access
  • Subscription for unlimited access
  • Ad-free experience with subscription
Features
Read full description

Looking for a way to send F-Keys through a web browser on IOS? This Web Browser is built with function key keyboard support for some 5250 IBM Main Frame web emulators and other websites that require function key input. Our standard keyboard configuration is free for all users to use on any website. PREMIUM WEBSITE CUSTOM KEYBOARD CONFIGURATIONS Some websites are built a little different from standard. To work with these sites, we have worked with users to develop custom configurations to properly send F-Keys to these non-standard websites. To use these Custom Keyboard Configurations, you will need to watch a rewarded ad for temporary access or subscribe for unlimited access without ads. A custom keyboard configuration has been built and tested with CN Rail CATS website (we are not affiliated with CN). For more information on Custom Keyboard Configurations, please see https://fkeybrowser.freshdesk.com/a/solutions/articles/72000521227 SUBSCRIPTION INFO FKey Keyboards now allows you to purchase a subscription to have unlimited access to Custom keyboard Configurations and remove all App ads. Subscriptions with a free trial period will automatically renew to a paid subscription. You can cancel your subscription in the iTunes settings at least 24-hours before the end of the free trial period. Subscription payments will be charged to your iTunes Account at confirmation of your purchase and upon commencement of each renewal term. Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. You can cancel a free trial or subscription anytime by cancelling your subscription through your iTunes account settings. This must be done 24 hours before the end of a free trial or subscription period to avoid being charged. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service. Terms of Service: https://www.fkeybrowser.com/terms.html Privacy policy: https://www.fkeybrowser.com/privacy.html Have a feature request you would like to see in a future version of the app, or have a website that requires a Custom Keyboard Configuration? Do not hesitate to contact us at support@fkeybrowser.com

About

Onion Browser

Browse the web privately and securely with advanced features like ad blocking and VPN integration. Access the Darknet and deep web with confidence, while also monitoring your phone's performance and system health.

Highlights
  • Private browsing
  • VPN integration
  • Ad and tracker blocking
  • Darknet and deep web access
  • Phone performance analytics
  • Encryption and security
Features
Read full description

Welcome to Tube Onion Browser, where we're all about making your web journey private. Tube Browser is complemented by comprehensive insights into your phone's performance. Imagine a place where the Darknet, Dark web and the vast beyond are just a tap away. Our built-in privacy network is like a magic cloak, making you invisible as you browse, protecting your identity, and keeping your browsing history just between you and your phone. Our Dark Web Browser, navigates through a network of nodes and servers, using random nodes cleverly diverting your traffic to keep prying eyes and hackers at bay! ---- What Makes Tube Browser Your Go-To ---- - Privacy and Security, Hand in Hand: Our Orbot Browser is engineered for absolute privacy with layers of encryption and a network of nodes ensuring your digital foot print hidden from data hungry organisations and nosy ISPs. Browse anonymously, access the deep web and dark web keeping your internet footprint confidential. - Tracking? Not in Our House: In a world full of online tracking and ad traps, our Orbot Proxy and strong tracking protection act like an invisible shield for you online. Move around the web without leaving any marks or clues behind. - Sleek Performance: Who said privacy comes at the cost of speed? Not us! Our app is optimized to purr like a kitten, ensuring your browsing is as smooth as silk, without dragging down your device’s pep. - Tailored Analytics: Curious about your CPU usage or how much memory you have left? Our app provides a clear view of what’s happening inside your phone, from internet usage stats to system health, all without compromising your privacy or security. All through an intuitive and visual interface. - Security That Stands Guard: Imagine having a personal guardian for your phone, and that's our cutting-edge security suite for you. With tools sharp enough to spot reverse engineering shenanigans, your phone’s fortress is impenetrable. ---Your Browser’s Toolkit---- - Bridge setup? A breeze. - A straight dive into the Darknet. - Rerouting your path? As easy as pie. - Browsing history? What browsing history? - Bookmarking your faves? Just one click away. - Orbot Proxy for that extra layer of stealth. ---Phone Analytics Toolkit--- - Watch your CPU flex its muscles. - Memory allocation? Check it in real-time. - System uptime and kernel version at a glance. - Network insights and internet speed? Covered. - Battery feeling good? You’ll know. - Keeping cool? Monitor your device’s temp right here. Why wait? Your private browsing heaven awaits and is surprisingly simple. Oh, and let's not forget - Our powerful performance analytics let you keep a close watch on various stats of your phone! Terms & Conditions: https://docs.google.com/document/d/1Re7isKybTTH4GN9NgUPJ1pzunVQdOpm5CqpKWpHOICA Privacy Policy: https://docs.google.com/document/d/1XHz0aiy86oQXpnZVJVCGRAnbcXgmoVfwpXPEQfM_-ac/ Terms of Subscription: https://docs.google.com/document/d/13Z5Xxasw9eH9SO6ht3TX8-20qRRkfsy5ylRkA6J0O1c Disclaimer: This product is produced independently from the Tor® anonymity software and carries no guarantee from The Tor Project about quality, suitability or anything else.

Screenshots

FKey Browser4 screens
Onion Browser4 screens

Verdict

The call

The clearest difference is review sentiment: Onion Browser at 85% against FKey Browser's 36%. Onion Browser also leads on rating (4.6 vs 2.6) and ads (none vs shown). FKey Browser's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases, monetization model 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

Both are free to download. FKey Browser sells 1 in-app purchase, starting at $3.99 per month and Onion Browser sells 7 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Onion Browser holds the better App Store score, 4.6 against 2.6. That said, the two scores are not equally well evidenced: Onion Browser has 206 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 36% of FKey Browser's written reviews are positive against 85% of Onion Browser's.

UpkeepUpdate frequency

FKey Browser ships an update every 3 months, Onion Browser every 10 days. The most recent releases landed on September 22, 2026 and October 6, 2026 respectively.

Scorecard6 real differences · 4 level
FKey Browser versus Onion Browser: the parameters behind the verdict, then further details
ParameterFKey BrowserOnion Browser
PriceFreeFree
Rating2.6 (5 ratings)4.6 (206 ratings) — better
Positive reviews35.7% of reviews84.8% of reviews — better
Number of ratings5206 — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size50 MB89 MB
Age rating17+17+
DeveloperMicah WallaceSecure cypher Solutions

Customer experience

FKey Browser

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews14 reviews
Positive35.7%
Neutral7.1%
Negative57.1%

Onion Browser

All ratings206 ratings
Positive90.8%
Neutral2.9%
Negative6.3%
Written reviews33 reviews
Positive84.8%
Neutral3.0%
Negative12.1%

In-app purchases

1 purchases

FKey Browser

Subscriptions1
  • FKey Browser Ad Free14 Days trial$3.991 Month
7 purchases

Onion Browser

Subscriptions5
  • weekly subscription$2.997 Days
  • Onion Browser Weekly Premium3 Days trial$5.997 Days
  • Monthly subscription3 Days trial$8.991 Month
Show 2 more
  • Yearly subscription3 Days trial$17.991 Year
  • Onion Browser Yearly Premium$34.991 Year
One-time2
  • Lifetime premium subscription$14.99
  • Onion Browser Pro for Lifetime$17.99

Questions

Is FKey Browser free?
FKey Browser is free to download, with in-app purchases available.
Is Onion Browser free?
Onion Browser is free to download, with in-app purchases available.
Which has better reviews, FKey Browser or Onion Browser?
Onion Browser is rated higher. FKey Browser averages 2.6 out of 5 from 5 ratings, while Onion Browser averages 4.6 from 206 ratings.
Do FKey Browser or Onion Browser have ads?
FKey Browser shows ads; Onion Browser does not.
Which is updated more often, FKey Browser or Onion Browser?
FKey Browser ships an update every 3 months, and Onion Browser every 10 days. Most recently, FKey Browser was updated on September 22, 2026 and Onion Browser on October 6, 2026.

Other comparisons