Comparison

Firefox Fast & Private Browser vs UPX Private Browser

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

Head to head
About

Firefox Fast & Private Browser

A fast and private web browser that protects you by default. It blocks trackers, offers private browsing, and provides tools to help you focus on content and manage your logins securely.

Highlights
  • Enhanced Tracking Protection
  • Private browsing mode
  • Page summaries
  • Built-in password manager
  • Reader Mode
  • Sync across devices
Features
Currently charting
Read full description

The internet. As it should be. Firefox is a fast, private web browser designed to protect you by default. Privacy is built in from the start, so you can focus on what matters instead of worrying about who’s watching. Why people choose Firefox: • Enhanced Tracking Protection – Blocks trackers by default to help stop companies from following you across the web. • Private browsing mode – Browse without saving your history, searches, or cookies. • Page summaries – Get the key points from long pages and move on faster. • Built-in password manager – Generate strong passwords, save them securely, and autofill logins when you need them. • Flexible search options – Choose your default search engine or switch search engines right from the search bar. • Reader Mode – Remove ads and clutter from articles so you can focus on what you’re reading. • Sync across devices – Pick up where you left off with synced tabs, bookmarks, and passwords when you sign in to your Mozilla account. Private by default Firefox is designed with privacy built in from the moment you start browsing. Enhanced Tracking Protection automatically blocks common background trackers, including social media trackers, crypto miners, and fingerprinters. When you want extra privacy, private browsing mode doesn’t save your history, searches, or cookies. Focus on what matters The web can be distracting. Firefox is designed to help you stay focused without making you manage everything yourself. Reader Mode clears clutter from articles, and picture-in-picture keeps videos visible while you multitask—without pulling focus from what you’re doing. Browse your way Customize Firefox to fit how you browse. Personalize your home screen with wallpapers and layout options, and choose your preferred search engine instead of being pushed into a single ecosystem. You can move the search bar to the top or bottom of the screen for easier one-handed browsing. Sign in to your Mozilla account to sync tabs, bookmarks, passwords, and browsing history across devices, so switching feels seamless. Built for people, not profit Firefox was created in 2004 by Mozilla as a faster, more private, and more customizable alternative to other browsers. Today, Mozilla remains a nonprofit and continues working to make the internet — and the time you spend on it — better. Learn more about Mozilla: https://www.mozilla.org Terms of Use: https://www.mozilla.org/about/legal/terms/firefox/ Privacy Policy: https://www.mozilla.org/privacy/firefox Latest news: https://blog.mozilla.org

About

UPX Private Browser

Browse the internet securely and anonymously with advanced encryption and an incognito mode. Enjoy fast connections and leave no trace of your online activity. Premium features offer an ad-free experience and enhanced performance.

Highlights
  • Advanced encryption for data security
  • Anonymous surfing with IP masking
  • Incognito browser mode
  • Super fast connection speeds
  • No logs of browsing history
  • Multiple language support
Features
Read full description

Key Features: • Free, unlimited personal use. • Easy to download, install and use. No registration, no configuration, no limits. • Automatic selection of protocols to provide fast, reliable and secure web access. • Multiple language support for all websites. ► ADVANCED ENCRYPTION UPX provides a safe and secure tunnel for all your login credentials, passwords and other sensitive information to go through, protecting them from being accessed and intercepted by anyone who could be monitoring and tracking your moves on the internet. With private internet access that UPX offers, stay safe and protect data privacy while using public Wi-fi hotspot. ► ANONYMOUS SURFING UPX provides you full anonymity with no concern about being tracked by your ISP or anybody else as your IP will be changed. It is the right choice if you are looking for hide your ip on internet. Even more you will not have any history with embedded incognito browser mode. ► SUPER FAST BROWSER Be ready to get the most stable and turbo speed connection you have never experienced as UPX has multiple server locations from all over the world. ► LEAVE NO LOGS BEHIND UPX ensures that no one can access your browser activity and history. Your logs are invisible to ISPs and public wi-fi networks as UPX encrypts data using SSL protocols. Your logs are invisible to UPX too because UPX simply doesn't store it. UPX Browser Premium Service includes: No Advertisements: Ads will not be bothering you anymore. Fastest Connection: Special servers only dedicated to our subscribed users. Unlimited Bandwidth: Go as far as you can without any traffic or bandwidth limitations. Better Adblock: Next generation Adblock technology just for our premium users. ► SUBSCRIPTION INFO: 3-day free trial Payment will be charged to your iTunes account on confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the trial period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. LEGAL Terms of Service: https://www.upxios.com/privacy.html Privacy Policy: https://www.upxios.com/termsofservice.html

Screenshots

Firefox Fast & Private Browser4 screens
UPX Private Browser4 screens

Verdict

The call

The clearest difference is in-app purchases: Firefox Fast & Private Browser at none against UPX Private Browser's 3. Firefox Fast & Private Browser also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). On price, rating, review sentiment 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. UPX Private Browser sells 3 in-app purchases, starting at $1.99 per 7 days. Firefox Fast & Private Browser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Firefox Fast & Private Browser against 4.6 for UPX Private Browser. That said, the two scores are not equally well evidenced: Firefox Fast & Private Browser has 217K ratings behind it against 8.8K, so its average is the more settled of the two. Written reviews are what separate them: 45% of Firefox Fast & Private Browser's written reviews are positive against 41% of UPX Private Browser's.

UpkeepUpdate frequency

Firefox Fast & Private Browser ships an update weekly, UPX Private Browser every 2 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard7 real differences · 4 level
Firefox Fast & Private Browser versus UPX Private Browser: the parameters behind the verdict, then further details
ParameterFirefox Fast & Private BrowserUPX Private Browser
PriceFreeFree
Rating4.6 (217K ratings)4.6 (8.8K ratings)
Positive reviews45.4% of reviews — better41.1% of reviews
Number of ratings217K — better8.8K
Update frequencyWeekly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#26 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size363 MB216 MB
Age rating17+17+
DeveloperMozillaProx Solut LLC

Customer experience

Firefox Fast & Private Browser

All ratings217,373 ratings
Positive91.8%
Neutral3.1%
Negative5.2%
Written reviews2,924 reviews
Positive45.4%
Neutral11.1%
Negative43.5%

UPX Private Browser

All ratings8,807 ratings
Positive89.5%
Neutral3.3%
Negative7.1%
Written reviews95 reviews
Positive41.1%
Neutral6.3%
Negative52.6%

User reviews

Firefox Fast & Private Browser

From 217K App Store ratings

What we love

  • 🚀 Fast and efficient
  • 🔒 Secure and privacy-focused
  • 👍 Great alternative to Chrome and Safari
  • 💡 Useful sync functionality across devices

Room to improve

  • 🐛 Buggy and unstable, crashes frequently
  • 🔋 High battery consumption
  • 👎 Cluttered and confusing UI, especially on iPad
  • 🤔 Lack of customization and extension options

UPX Private Browser

From 8.8K App Store ratings

What we love

  • 👍 Best app to use
  • 🚀 Fast and easy to use
  • 🔒 Excellent internal VPN

Room to improve

  • 🐛 Crashes frequently
  • 🐛 Doesn't work for free users
  • 🔒 Requires location tracking
  • 💸 Aggressive subscription upsells
  • 🐛 Compatibility issues with iOS 14

Bugs and requests

Firefox Fast & Private Browser

Reported bugs

4 issues
  • Images not loading properly
  • Incompatibility with certain websites and web apps
  • Keyboard issues and unexpected behavior when switching between apps
  • Sync issues and data loss when switching devices

Requested features

4 requests
  • Dark mode option
  • Improved bookmark management and organization
  • Built-in ad blocker or support for third-party ad blockers
  • Ability to rearrange tabs and customize the UI

UPX Private Browser

Reported bugs

3 issues
  • Can't restore purchases after cancellation
  • Websites not loading properly
  • Video playback issues

Requested features

3 requests
  • Add a lifetime subscription option
  • Improve full-screen video playback
  • Add download functionality

In-app purchases

None

Firefox Fast & Private Browser

No in-app purchases

3 purchases

UPX Private Browser

Subscriptions3
  • Weekly Premium3 Days trial$1.997 Days
  • Monthly Premium$7.991 Month
  • Yearly Premium$79.991 Year

Questions

Is Firefox Fast & Private Browser free?
Firefox Fast & Private Browser is free to download, with no in-app purchases.
Is UPX Private Browser free?
UPX Private Browser is free to download, with in-app purchases available.
Which has better reviews, Firefox Fast & Private Browser or UPX Private Browser?
Firefox Fast & Private Browser and UPX Private Browser are both rated 4.6 out of 5 on the App Store, from 217K and 8.8K ratings respectively.
Do Firefox Fast & Private Browser or UPX Private Browser have ads?
UPX Private Browser shows ads; Firefox Fast & Private Browser does not.
Which is updated more often, Firefox Fast & Private Browser or UPX Private Browser?
Firefox Fast & Private Browser ships an update weekly, and UPX Private Browser every 2 months. Most recently, Firefox Fast & Private Browser was updated on September 24, 2026 and UPX Private Browser on September 22, 2026.

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