Comparison

DuckDuckGo, optional Duck.ai vs Vivaldi Powerful Web Browser

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

Head to head
About

DuckDuckGo, optional Duck.ai

This app offers a private search engine and browser that blocks trackers and ads. It includes optional AI features for private conversations and email protection. A subscription unlocks a VPN, advanced AI, and personal information removal services.

Highlights
  • Private search engine
  • Ad and tracker blocking browser
  • Private AI chat
  • Email protection
  • Optional VPN
  • Personal information removal
Features
Read full description

At DuckDuckGo, we believe the best way to protect your personal information from hackers, scammers, and privacy-invasive companies is to stop it from being collected at all. That's why millions of people choose DuckDuckGo over Chrome and other browsers to search and browse online. Our built-in search engine is like Google but never tracks your searches. Our browser blocks YouTube ads, invasive web ads, and cookie pop-ups, reducing distractions and helping to stop other companies from collecting your data. While our optional integrated AI features, Search Assist and Duck.ai, are private and never use your data to train AI. Oh, and our browser is free. We make money from privacy-respecting search ads, not by exploiting your data. Take back control of your personal information with the browser designed for data protection, not data collection. FEATURE HIGHLIGHTS Protect Your Searches by Default: DuckDuckGo Search comes built-in, so you can easily search online without being tracked.  Shield Your Browsing History: Our 3rd-Party Tracker Loading Protection blocks most trackers before they load, greatly exceeding what most popular browsers offer by default.  Chat Privately With AI: Duck.ai lets you have private conversations with 3rd-party AI models, anonymized by us and never used to train AI. Secure Your Email (Optional): Use Email Protection to block most email trackers and hide your existing email address with @duck.com addresses.   Block Ads: Our browser blocks YouTube Ads, and stops invasive trackers from loading on sites, effectively eliminating targeted ads. Automatically Enforce Encryption: Shield your data from network and Wi-Fi snoopers by forcing many sites to use an HTTPS connection.  Escape Fingerprinting: Make it harder for companies to create a unique identifier for you by blocking attempts to combine info about your browser and device.  Sync and Back Up Securely (Optional): Sync encrypted bookmarks and passwords across your devices. Clear your tabs and browsing data in a flash with the Fire Button. Banish cookie pop-ups and automatically set your preferences to minimize cookies and maximize privacy. And many more protections not available on most browsers, even in private browsing mode, including protection from link tracking, Global Privacy Control (GPC), and more. DUCKDUCKGO SUBSCRIPTION Subscribers get • Our VPN: Secure your connection on up to 5 devices.     • Access to advanced AI Models in Duck.ai: Chat privately with AI models built for complex tasks. • Personal Information Removal: Find and remove personal info from sites that store and sell it.   • Identity Theft Restoration: If your identity is stolen, we’ll help restore it.   DuckDuckGo Subscription Pricing & Terms   Payment will be charged automatically to your Apple Account until you cancel, which you can do in app settings. You have the option to provide an email address to activate your subscription on other devices, and we will only use that email address to verify your subscription. For terms of service and privacy policy, visit https://duckduckgo.com/pro/privacy-terms Read more about our free Tracking Protections at https://help.duckduckgo.com/privacy/web-tracking-protections Privacy Policy: https://duckduckgo.com/privacy/  Terms of Service: https://duckduckgo.com/terms Note about 3rd-Party Tracker Protection and Search Ads: while there are some limitations following search ad clicks, viewing ads on DuckDuckGo search is anonymous. Learn more here https://help.duckduckgo.com/privacy/web-tracking-protections Privacy. Simplified. ™

About

Vivaldi Powerful Web Browser

This web browser offers a highly customizable and private browsing experience with built-in ad and tracker blockers. It features desktop-like tab management, dark mode for all websites, and seamless cross-device syncing.

Highlights
  • Built-in Ad Blocker
  • Tracker Blocker
  • Customizable Themes & Wallpapers
  • Desktop-like Tabs
  • Encrypted Sync Across Devices
  • Notes and Reading Lists
  • Force Dark Mode for Websites
Features
Read full description

Vivaldi Browser is a powerful, personal, and private web browser. It comes packed with built-in features including desktop-style tabs, an Ad Blocker, tracking protection. Designed to put you back in control. Trusted by millions of users across the world. FEATURES: - Ad Blocker: Browse with minimal distractions. - Tracker Blocker: Stay protected with leading privacy and security features. - Custom Wallpapers & Themes: Pick a theme and background that matches your style. - Dark Mode for all webpages: Force Dark Mode to every website you visit. - Desktop-like tabs: Efficiently manage multiple websites at once. - Encrypted Sync: Seamlessly sync data across your mobile and desktop devices. - Notes: Jot down thoughts and ideas while browsing. - Bookmarks: Organize your favorite sites effortlessly. - Reading Lists: Save articles for offline reading. - Custom App Icon: Personalize Vivaldi's appearance on your home screen. - Switch Search Engines: Choose your preferred search engine on the fly. POWERFUL Packed with flexible features, all built in. PERSONAL You make it your own, Vivaldi adapts to you. PRIVATE We don't track you, or your behavior. DESKTOP-LIKE TABS Bring the robust tab management from your desktop to your iOS device. Vivaldi on iOS features a unique Tab Bar akin to the desktop browser. To activate or deactivate the Tab Bar, head to Vivaldi menu > Settings, and tap on "Show Tab Bar" to toggle the setting. SYNC ACROSS DEVICES Never feel out of touch. Sync your data across devices with end-to-end encryption. From open tabs and saved logins to bookmarks and notes, everything is seamlessly available wherever you go. Add an extra layer of security with an encryption password. SET AS DEFAULT BROWSER Ready to make the switch? Set Vivaldi as your default browser and experience the web like never before. Here's how: Go to Settings, scroll down to Vivaldi, and select it as your Default Browser App. It's that simple! ABOUT VIVALDI With millions active users and a vibrant community of over 1.4 million members worldwide, Vivaldi is redefining what a web browser can be. At Vivaldi, we believe a browser should be powerful, personal, and private. With our unique philosophy of "respect, question, create, and deliver," we're crafting a browsing experience that adapts to you, not the other way around. Some of the links in this app are affiliate links. If you make a purchase through these links, we may earn a commission at no additional cost to you. This helps support the development of Vivaldi and keeps the web browser independent. Thank you for your support! By downloading Vivaldi, you are agreeing to the End User License Agreement at https://vivaldi.com/privacy/vivaldi-end-user-license-agreement/. Learn more about how Vivaldi handles and protects your data in our Privacy Policy at https://vivaldi.com/privacy/browser/.

Screenshots

DuckDuckGo, optional Duck.ai4 screens
Vivaldi Powerful Web Browser4 screens

Verdict

The call

The clearest difference is in-app purchases: Vivaldi Powerful Web Browser at none against DuckDuckGo, optional Duck.ai's 7. Vivaldi Powerful Web Browser also leads on review sentiment (77% vs 65%). DuckDuckGo, optional Duck.ai's advantage is ratings volume (2.4M vs 4.5K) and chart position (#17 vs unranked). On price, rating 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DuckDuckGo, optional Duck.ai sells 7 in-app purchases, starting at $9.99 per month. Vivaldi Powerful Web Browser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for DuckDuckGo, optional Duck.ai against 4.7 for Vivaldi Powerful Web Browser. That said, the two scores are not equally well evidenced: DuckDuckGo, optional Duck.ai has 2.4M ratings behind it against 4.5K, so its average is the more settled of the two. Written reviews are what separate them: 65% of DuckDuckGo, optional Duck.ai's written reviews are positive against 77% of Vivaldi Powerful Web Browser's.

UpkeepUpdate frequency

DuckDuckGo, optional Duck.ai ships an update weekly, Vivaldi Powerful Web Browser fortnightly. Both last shipped on November 10, 2026.

Scorecard8 real differences · 3 level
DuckDuckGo, optional Duck.ai versus Vivaldi Powerful Web Browser: the parameters behind the verdict, then further details
ParameterDuckDuckGo, optional Duck.aiVivaldi Powerful Web Browser
PriceFreeFree
Rating4.8 (2.4M ratings) — better4.7 (4.5K ratings)
Positive reviews64.7% of reviews77.4% of reviews — better
Number of ratings2.4M — better4.5K
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#17 — better—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size256 MB248 MB
Age rating17+17+
DeveloperDuckDuckGo, Inc.Vivaldi Technologies

Customer experience

DuckDuckGo, optional Duck.ai

All ratings2,420,634 ratings
Positive97.2%
Neutral1.7%
Negative1.1%
Written reviews3,585 reviews
Positive64.7%
Neutral8.1%
Negative27.2%

Vivaldi Powerful Web Browser

All ratings4,486 ratings
Positive93.6%
Neutral2.3%
Negative4.1%
Written reviews1,172 reviews
Positive77.4%
Neutral7.4%
Negative15.2%

User reviews

DuckDuckGo, optional Duck.ai

From 2.4M App Store ratings

What we love

  • 🚀 Fast and efficient
  • 🔒 Excellent privacy protection
  • 👍 Clean and intuitive interface
  • 🔥 Effective ad and tracker blocking

Room to improve

  • 🐛 Occasional crashes and glitches
  • 🔍 Slower page load times compared to other browsers
  • 🔍 Inconsistent search quality compared to Google

Vivaldi Powerful Web Browser

From 4.5K App Store ratings

What we love

  • 👍 Highly customizable
  • 🔒 Strong privacy and security features
  • 🚀 Fast and responsive
  • 💡 Innovative features like tab stacking
  • 👍 Seamless cross-device sync

Room to improve

  • 🐛 Occasional crashes and performance issues
  • 🔋 Battery drain concerns
  • 🔒 Lack of support for third-party password managers
  • 👎 Missing some basic mobile browser features (e.g., reader mode, bottom address bar)

Bugs and requests

DuckDuckGo, optional Duck.ai

Reported bugs

2 issues
  • Inability to set DuckDuckGo as default browser on iOS
  • Refresh button hidden in menu instead of standalone

Requested features

3 requests
  • Add support for voice search
  • Improve tab management and history navigation
  • Introduce customizable font and theme options

Vivaldi Powerful Web Browser

Reported bugs

4 issues
  • Issues with ad blocker not working consistently
  • Problems with tab syncing between devices
  • Text input lag and delays
  • Forced review prompts

Requested features

6 requests
  • Option to move address bar and navigation buttons to the bottom of the screen
  • Ability to set custom search engines
  • Implement a reader mode
  • Add support for browser extensions
  • Improve tab closing/management gestures
Show 1 more
  • Provide more customization options

In-app purchases

7 purchases

DuckDuckGo, optional Duck.ai

Subscriptions7
  • DuckDuckGo (Plus, Monthly)7 Days trial$9.991 Month
  • DuckDuckGo monthly$9.991 Month
  • DuckDuckGo (Pro, Monthly)$19.991 Month
Show 4 more
  • DuckDuckGo (Pro, Monthly)7 Days trial$19.991 Month
  • DuckDuckGo (Plus, Yearly)7 Days trial$99.991 Year
  • DuckDuckGo annual$99.991 Year
  • DuckDuckGo (Pro, Yearly)7 Days trial$199.991 Year
None

Vivaldi Powerful Web Browser

No in-app purchases

Questions

Is DuckDuckGo, optional Duck.ai free?
DuckDuckGo, optional Duck.ai is free to download, with in-app purchases available.
Is Vivaldi Powerful Web Browser free?
Vivaldi Powerful Web Browser is free to download, with no in-app purchases.
Which has better reviews, DuckDuckGo, optional Duck.ai or Vivaldi Powerful Web Browser?
DuckDuckGo, optional Duck.ai is rated higher. DuckDuckGo, optional Duck.ai averages 4.8 out of 5 from 2.4M ratings, while Vivaldi Powerful Web Browser averages 4.7 from 4.5K ratings.
Do DuckDuckGo, optional Duck.ai or Vivaldi Powerful Web Browser have ads?
Neither DuckDuckGo, optional Duck.ai nor Vivaldi Powerful Web Browser shows ads.
Which is updated more often, DuckDuckGo, optional Duck.ai or Vivaldi Powerful Web Browser?
DuckDuckGo, optional Duck.ai ships an update weekly, and Vivaldi Powerful Web Browser fortnightly. Most recently, DuckDuckGo, optional Duck.ai was updated on November 10, 2026 and Vivaldi Powerful Web Browser on November 10, 2026.

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