Comparison

Koala Browser vs Cydog Browser

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

Head to head
About

Koala Browser

This web browser is designed to improve sleep quality by filtering out blue light emitted from device screens. It automatically adjusts display colors based on the time of day, creating a warmer tone at night to promote melatonin production.

Highlights
  • Automatic color temperature adjustment
  • Blue light filtering
  • Download and view files
  • Darkness Boost for low brightness
  • Private browsing
  • Multiple browser tabs
Features
Read full description

Sleep better with Koala™! A faster web browser with downloads, that improves the quality of your sleep! Research has demonstrated that nighttime light exposure suppresses the production of melatonin, the major hormone that controls sleep and wake cycles. The "blue", short-wavelength light is the most melatonin-suppressive, and is also emitted by devices such as televisions, computer screens, and cellphones. (Note: Koala dimming effect only works while inside the app!) The Koala™ Web Browser filters out the blue light to create a healthy, energizing sleep cycle. It is the first web browser that cares about your sleep quality! Koala™ makes the color of your iDevice display adapt to the time of day, warm at night and like sunlight during the day. All automatically! FEATURES * Automatically adjust the color temperature depending on your local time and sunset/sunrise times * DOWNLOAD and view files! * Darkness Boost for lower brightness during the night * Multiple browser tabs * Private browsing * History and Bookmarks * Sharing to Twitter, Facebook, Email, Text, WhatsApp etc * Select search engine (Google, Yahoo!, Bing, DuckDuckGo) * More features coming soon!

About

Cydog Browser

This mobile browser enhances security with customizable features and an offline database for storing internet content. It offers a dedicated search with numerous engines and advanced encryption technologies to protect against cyber threats. An iMessage extension allows for secure, encrypted messaging.

Highlights
  • Enhanced mobile browser security
  • Offline database for internet content
  • Encrypted bookmarks and pictomarks
  • 40+ search engine integration
  • Proprietary anti-cookie and firewall tech
  • Deterrence decryption feature
  • Secure iMessage extension
Features
Read full description

TL;DR - Here's the bottom line on how our iOS Security & Social Browser works: Enhanced mobile browser security with easy customization. An offline database solution to store and catalog the internet safely, including Bookmarks and Pictomarks with bookmarks encrypted automatically. A dedicated search with over 40+ search engines. An option to purchase our proprietary anti-cookie potentiation and firewall technologies, including: the Walled Garden and the Wall Watcher. A deterrence decryption feature that allows users to view webpages relying on our new deterrence encryption technology. An iMessage extension to send encrypted text and picture messages securely. L;WR - Here's our long(er) explanation version: Mobile browsing can be a scary place. Hackers and Cyber Criminals have found innovative ways to target you on the devices and applications you use the most. Cydog Browser is a company which provides the world's leading web security for the masses. Our browser automatically blocks all non-secure http connections, leveraging Apple's App Transport Security (ATS) technology. This is the same technology Apple uses for its lockdown mode when users are being attacked by sophisticated hackers. Because we use this mode, you can't add code to reenable access to insecure connections, making your web connections more secure in the event of an application sandbox compromise. Our obfuscation mode creates web browsing entropy to make certain cyber-hijacks more difficult, decreasing Man-in-the-Middle (MitM) attacks, and our anti-cookie potentiation and web firewall technologies block insecure events, making a user's clicks an active cybersecurity technique to trick sophisticated hackers. This browser is meant for minimalists who want automated features without the cybersecurity hassles. We hope you enjoy better mobile browser security with Cydog Browser! Want to know more about Cydog Browser? Visit: cydogbrowser.com

Screenshots

Koala Browser2 screens
Cydog Browser4 screens

Verdict

The call

The clearest difference is rating: Cydog Browser at 3.3 against Koala Browser's 2.9. Cydog Browser also leads on update cadence (every 10 days vs every 2 months) and review sentiment (44% vs 32%). Koala Browser's advantage is ratings volume (284 vs 10) and iOS requirement (8.0 vs 15.0). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Koala Browser sells 1 one-off in-app purchase and Cydog Browser sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cydog Browser holds the better App Store score, 3.3 against 2.9. That said, the two scores are not equally well evidenced: Koala Browser has 284 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 32% of Koala Browser's written reviews are positive against 44% of Cydog Browser's.

UpkeepUpdate frequency

Koala Browser ships an update every 2 months, Cydog Browser every 10 days. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Koala Browser versus Cydog Browser: the parameters behind the verdict, then further details
ParameterKoala BrowserCydog Browser
PriceFreeFree
Rating2.9 (284 ratings)3.3 (10 ratings) — better
Positive reviews32.2% of reviews44.4% of reviews — better
Number of ratings284 — better10
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS8.0 — better15.0
Further details — not scored
Size20 MB80 MB
Age rating17+17+
DeveloperAppRebel, Inc.Matthew Benchimol

Customer experience

Koala Browser

All ratings284 ratings
Positive44.4%
Neutral8.8%
Negative46.8%
Written reviews208 reviews
Positive32.2%
Neutral9.6%
Negative58.2%

Cydog Browser

All ratings11 ratings
Positive54.5%
Neutral9.1%
Negative36.4%
Written reviews9 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

Bugs and requests

Koala Browser

Reported bugs

3 issues
  • Keyboard not dimmed
  • Videos not properly filtered
  • Inconsistent behavior when switching apps

Requested features

3 requests
  • Ability to filter blue light system-wide
  • Option to adjust brightness/darkness level
  • Support for more search engines beyond Google

Cydog Browser

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Koala Browser

One-time1
  • Remove Ads$2.99
4 purchases

Cydog Browser

One-time4
  • Cydog Walled Garden$0.99
  • Cydog Wall Watcher$0.99
  • Cydog Injector$0.99
Show 1 more
  • Cydog Iconography$0.99

Questions

Is Koala Browser free?
Koala Browser is free to download, with in-app purchases available.
Is Cydog Browser free?
Cydog Browser is free to download, with in-app purchases available.
Which has better reviews, Koala Browser or Cydog Browser?
Cydog Browser is rated higher. Koala Browser averages 2.9 out of 5 from 284 ratings, while Cydog Browser averages 3.3 from 10 ratings.
Do Koala Browser or Cydog Browser have ads?
Neither Koala Browser nor Cydog Browser shows ads.
Which is updated more often, Koala Browser or Cydog Browser?
Koala Browser ships an update every 2 months, and Cydog Browser every 10 days. Most recently, Koala Browser was updated on November 1, 2026 and Cydog Browser on October 24, 2026.

Other comparisons