Comparison

Radium Web Browser vs Lion Browser

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

Head to head
About

Radium Web Browser

A lightweight and extendable web browser for iOS devices. It offers tabbed browsing, ad blocking, and bookmarking. Users can enhance its functionality with JavaScript extensions.

Highlights
  • Tabbed browsing
  • Ad blocking
  • JavaScript extensions
  • Tab restoration
  • Bookmarking
  • Browsing history
Features
Read full description

Radium is a simple to use yet powerful web browser on your iOS device. The browser is light weight so it won't get in the way of where you are trying to go. Radium has the benefit of allowing users to extend the functionality of the browser using simple JavaScript extensions! Features: - Block ads from known sources on sites you visit (iOS 11 only) - Use tabs to have several pages open at once - Bookmark your favorite websites for quick browsing - Radium remembers where you left off and will restore your tabs when you come back - View your recently visited websites in the history page - Add functionality using WebKit compatible JavaScript extensions More information about extensions in Radium can be found at https://github.com/SlayterDev/RadiumBrowser/wiki

About

Lion Browser

This web browser offers built-in parental controls to help teens explore the internet safely. Adults can also use it for personal accountability, setting limits and receiving reports on flagged content. It provides a familiar browsing experience while ensuring responsible online activity.

Highlights
  • Blocks explicit websites
  • Detects inappropriate images
  • Customizable detection sensitivity
  • Whitelist mode
  • PIN-protected settings
  • Weekly accountability reports
  • Personal browsing limits
Features
Read full description

The best browser for teens. A powerful accountability tool for adults. Lion is a web browser with parental controls built in. Give your teen the freedom to explore the internet responsibly — while staying informed about what they're seeing. For parents & teens: • Blocks explicit websites and detects inappropriate images automatically • Customize detection sensitivity, block specific sites, and manage media access • Whitelist mode for complete control over which websites can be visited • PIN-protected settings prevent unauthorized changes • Weekly accountability reports summarize any flagged content For adults who want accountability: • Set personal browsing limits and stay accountable to a trusted partner • Private and secure — your logs stay on your device, never stored on servers • Customize what to track, block, or filter based on your needs How it works: 1. Set Lion as the default browser 2. Disable Safari using Screen Time 3. Add an accountability partner — a parent, mentor, or trusted friend 4. Browse the web — Lion logs activity based on your settings 5. Receive weekly reports on flagged content A browser you'll actually want to use Lion is fast, smooth, and familiar. Bookmarks sync across devices. Tabs work like you'd expect. It's a real browser — not a locked-down kids app. Subscription required for full access. Choose an Individual or Family plan. Privacy Policy: https://www.lionfamily.org/privacy Terms of Use: https://www.lionfamily.org/terms

Screenshots

Radium Web Browser2 screens
Lion Browser4 screens

Verdict

The call

The clearest difference is rating: Lion Browser at 4.7 against Radium Web Browser's 3.7. Lion Browser also leads on review sentiment (87% vs 50%) and update cadence (every 5 days vs every 11 days). Radium Web Browser's advantage is monetization model (free vs subscription) and iOS requirement (10.0 vs 16.6). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Radium Web Browser sells 1 one-off in-app purchase and Lion Browser sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Lion Browser holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Lion Browser has 110 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 50% of Radium Web Browser's written reviews are positive against 87% of Lion Browser's.

UpkeepUpdate frequency

Radium Web Browser ships an update every 11 days, Lion Browser every 5 days. The most recent releases landed on September 29, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Radium Web Browser versus Lion Browser: the parameters behind the verdict, then further details
ParameterRadium Web BrowserLion Browser
PriceFreeFree
Rating3.7 (19 ratings)4.7 (110 ratings) — better
Positive reviews50.0% of reviews87.1% of reviews — better
Number of ratings19110 — better
Update frequencyEvery 11 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better16.6
Further details — not scored
Size37 MB66 MB
Age rating17+17+
DeveloperSlayter DevelopmentLion Software, LLC

Customer experience

Radium Web Browser

All ratings19 ratings
Positive63.2%
Neutral10.5%
Negative26.3%
Written reviews8 reviews
Positive50.0%
Neutral12.5%
Negative37.5%

Lion Browser

All ratings110 ratings
Positive93.6%
Neutral2.7%
Negative3.6%
Written reviews31 reviews
Positive87.1%
Neutral6.5%
Negative6.5%

In-app purchases

1 purchases

Radium Web Browser

One-time1
  • Ad Blocking$1.99
6 purchases

Lion Browser

Subscriptions6
  • Individual Plan$4.991 Month
  • Family Plan$8.991 Month
  • Premium Family Plan7 Days trial$9.991 Month
Show 3 more
  • Individual Plan (Annual)$49.991 Year
  • Family Plan (Annual)$79.991 Year
  • Premium Family Plan (Annual)14 Days trial$99.991 Year

Questions

Is Radium Web Browser free?
Radium Web Browser is free to download, with in-app purchases available.
Is Lion Browser free?
Lion Browser is free to download, with in-app purchases available.
Which has better reviews, Radium Web Browser or Lion Browser?
Lion Browser is rated higher. Radium Web Browser averages 3.7 out of 5 from 19 ratings, while Lion Browser averages 4.7 from 110 ratings.
Do Radium Web Browser or Lion Browser have ads?
Neither Radium Web Browser nor Lion Browser shows ads.
Which is updated more often, Radium Web Browser or Lion Browser?
Radium Web Browser ships an update every 11 days, and Lion Browser every 5 days. Most recently, Radium Web Browser was updated on September 29, 2026 and Lion Browser on October 14, 2026.

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