Comparison

Diigo Browser vs Secret Private Browser

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

Head to head
About

Diigo Browser

Save, sync, and annotate web pages and PDFs across devices. Easily share your saved content with highlights and sticky notes. Access your bookmarks anytime, anywhere.

Highlights
  • Save and sync bookmarks
  • Annotate web pages with highlights
  • Add sticky notes to web pages
  • Read saved PDF files
  • Share bookmarks with annotations
  • Cross-device access
Features
Read full description

Diigo Browser allows you to save, annotate and share bookmarks easily! Save and sync You can use Diigo Browser to save web pages to your Diigo account and the bookmarks will sync across your devices so that you can access them anytime, anywhere later. Annotate while reading Diigo Browser allows you to annotate web pages with highlights and sticky notes. The annotate button will pop up in the context menu after you select some text! PDF reading You can read your saved PDF files within the app directly and we will consider supporting PDF annotation in the future! Share easily You can share your bookmarks with annotations to others through email or IM or send it to other apps easily. We will keep working on the improvements of Diigo Browser to make it better and better. Please feel free to contact us at care@diigo.com if you have any questions or suggestions.

About

Secret Private Browser

Browse the web privately and securely with a full-featured browser that includes a VPN. Protect your favorite media content with password protection and enjoy a clean, ad-free browsing experience without history tracking.

Highlights
  • Integrated VPN with 65+ servers
  • Password-protected media storage
  • No browsing history
  • Downloadable files
  • Multi-tab browsing
  • Bookmarks and speed dial
Read full description

“Secret Private Browser” is a full-featured web browser with VPN and unique privacy features. Browse all your favorite websites privately and securely. Keep your favorite media content password protected. FEATURES √ Portrait and Landscape mode supported. √ No auto-fill or suggestion. √ Password protected. √ Download files. √ Beautiful design. √ 65+ VPN Servers from 30+ countries (and increasing) √ Bookmarks and Speed dial. √ Full-featured, multi-tab browser. √ No browsing history. Privacy Policy: https://applablimited.com/private_browser/privacy.html Terms of services: https://applablimited.com/private_browser/terms.html

Screenshots

Diigo Browser4 screens
Secret Private Browser4 screens

Verdict

The call

The clearest difference is in-app purchases: Diigo Browser at none against Secret Private Browser's 3. Diigo Browser also leads on ratings volume (563 vs 23) and update cadence (fortnightly vs every 6 weeks). Secret Private Browser's advantage is review sentiment (74% vs 58%) and iOS requirement (12.1 vs 16.0). On price, rating, ads 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. Secret Private Browser sells 3 in-app purchases, starting at $4.99 per month. Diigo Browser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Diigo Browser against 4.4 for Secret Private Browser. That said, the two scores are not equally well evidenced: Diigo Browser has 563 ratings behind it against 23, so its average is the more settled of the two. Written reviews are what separate them: 58% of Diigo Browser's written reviews are positive against 74% of Secret Private Browser's.

UpkeepUpdate frequency

Diigo Browser ships an update fortnightly, Secret Private Browser every 6 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Diigo Browser versus Secret Private Browser: the parameters behind the verdict, then further details
ParameterDiigo BrowserSecret Private Browser
PriceFreeFree
Rating4.5 (563 ratings) — better4.4 (23 ratings)
Positive reviews58.3% of reviews73.7% of reviews — better
Number of ratings563 — better23
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.1 — better
Further details — not scored
Size172 MB53 MB
Age rating17+17+
DeveloperDiigo Inc.AppLab Ltd.

Customer experience

Diigo Browser

All ratings563 ratings
Positive87.6%
Neutral2.5%
Negative9.9%
Written reviews151 reviews
Positive58.3%
Neutral6.6%
Negative35.1%

Secret Private Browser

All ratings20 ratings
Positive85.0%
Neutral5.0%
Negative10.0%
Written reviews19 reviews
Positive73.7%
Neutral10.5%
Negative15.8%

Bugs and requests

Diigo Browser

Reported bugs

4 issues
  • Login and sign-up issues
  • Sync problems across devices
  • Annotation and highlighting bugs
  • Crashes and performance issues

Requested features

4 requests
  • Improved search and filtering
  • Offline reading and caching
  • Customizable organization and folders
  • Better integration with other apps

Secret Private Browser

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Diigo Browser

No in-app purchases

3 purchases

Secret Private Browser

Subscriptions2
  • Secret Browser Premium Monthly$4.991 Month
  • Secret Browser Premium Yearly$24.991 Year
One-time1
  • Upgrade to Pro$2.99

Questions

Is Diigo Browser free?
Diigo Browser is free to download, with no in-app purchases.
Is Secret Private Browser free?
Secret Private Browser is free to download, with in-app purchases available.
Which has better reviews, Diigo Browser or Secret Private Browser?
Diigo Browser is rated higher. Diigo Browser averages 4.5 out of 5 from 563 ratings, while Secret Private Browser averages 4.4 from 23 ratings.
Do Diigo Browser or Secret Private Browser have ads?
Neither Diigo Browser nor Secret Private Browser shows ads.
Which is updated more often, Diigo Browser or Secret Private Browser?
Diigo Browser ships an update fortnightly, and Secret Private Browser every 6 weeks. Most recently, Diigo Browser was updated on November 6, 2026 and Secret Private Browser on November 3, 2026.

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