# Diigo Browser vs Secret Private Browser

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 (every 2 weeks vs every 6 weeks). Secret Private Browser's advantage is review sentiment (74% vs 59%) and iOS requirement (12.1 vs 16.0). On price, rating, ads and device support there is nothing between them.

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.

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: 59% of Diigo Browser's written reviews are positive against 74% of Secret Private Browser's.

Diigo Browser ships an update every 2 weeks, Secret Private Browser every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Diigo Browser | Secret Private Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (563 ratings)](https://appshunter.io/ios/app/diigo-browser/id933773981/reviews)** | [4.4 (23 ratings)](https://appshunter.io/ios/app/secret-private-browser/id1459961398/reviews) |
| Number of ratings | **563** | 23 |
| Positive reviews | 58.7% of reviews | **73.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | **Free** | Freemium |
| Size | 172 MB | 53 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Diigo Inc.](https://appshunter.io/developer/335006603) | [AppLab Ltd.](https://appshunter.io/developer/1536397615) |

## What reviewers say

### Diigo Browser

[App page](https://appshunter.io/ios/app/diigo-browser/id933773981)

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:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Useful for research and organization
- 👍 Syncs across devices
- 🚀 Efficient for bookmarking and annotating

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 🔨 Lacking in features and functionality
- 🔍 Search and discovery issues
- 🔒 Login and sync problems

**Reported bugs**

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

**Requested features**

- Improved search and filtering
- Offline reading and caching
- Customizable organization and folders
- Better integration with other apps


### Secret Private Browser

[App page](https://appshunter.io/ios/app/secret-private-browser/id1459961398)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Secret Browser Premium Monthly | $4.99 | per month |
| Secret Browser Premium Yearly | $24.99 | per year |
| Upgrade to Pro | $2.99 | one-time |


## Frequently asked 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 every 2 weeks, and Secret Private Browser every 6 weeks. Most recently, Diigo Browser was updated on November 1, 2026 and Secret Private Browser on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*