# Private Browser vs Diigo Browser

The clearest difference is in-app purchases: Diigo Browser at none against Private Browser's 3. Diigo Browser also leads on update cadence (every 2 weeks vs every 6 weeks). Private Browser's advantage is review sentiment (81% vs 59%) and iOS requirement (9.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Private Browser sells 3 in-app purchases, starting at $1.99 per month. Diigo Browser asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Private Browser against 4.5 for Diigo Browser. Both are backed by a comparable volume of ratings — 768 and 561 respectively. Written reviews are what separate them: 81% of Private Browser's written reviews are positive against 59% of Diigo Browser's.

Private Browser ships an update every 6 weeks, Diigo Browser every 2 weeks. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Private Browser | Diigo Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (768 ratings)](https://appshunter.io/ios/app/private-browser-surf-safe/id928439050/reviews) | **[4.5 (561 ratings)](https://appshunter.io/ios/app/diigo-browser/id933773981/reviews)** |
| Number of ratings | **768** | 561 |
| Positive reviews | **81.2% of reviews** | 58.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 67 MB | 172 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [KeepSolid Inc.](https://appshunter.io/developer/674978021) | [Diigo Inc.](https://appshunter.io/developer/335006603) |

## What reviewers say

### Private Browser

[App page](https://appshunter.io/ios/app/private-browser-surf-safe/id928439050)

Browse the internet anonymously and securely with advanced encryption and proxy technology. Protect your online activity from prying eyes and hide your location by selecting servers worldwide. Offers local security features for individual app access.

**Highlights:** Anonymous internet surfing, Proxy technology over VPN, Powerful encryption methods, Global server selection, Local security (passcode, Touch ID), Clear-all-browsing-data feature

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto-Renewable Subscription | $1.99 | per month |
| Auto-Renewable Subscription | $19.99 | per year |
| Lifetime Subscription | $99.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 🔒 Secure and private
- 👍 User-friendly interface
- 💡 Useful features like VPN and content blocking

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 🔋 High data and battery usage
- 📉 Unreliable and inconsistent performance
- 💰 Expensive subscription model

**Reported bugs**

- Login issues and account management problems
- Websites not loading properly or SSL connections failing
- Frequent crashes and app shutdowns

**Requested features**

- Dark mode option
- Improved compatibility with older devices
- Better integration with other security/privacy tools
- Offline browsing capabilities


### 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


## Frequently asked questions

### Is Private Browser free?

Private Browser is free to download, with in-app purchases available.

### Is Diigo Browser free?

Diigo Browser is free to download, with no in-app purchases.

### Which has better reviews, Private Browser or Diigo Browser?

Diigo Browser is rated higher. Private Browser averages 4.5 out of 5 from 768 ratings, while Diigo Browser averages 4.5 from 561 ratings.

### Do Private Browser or Diigo Browser have ads?

Neither Private Browser nor Diigo Browser shows ads.

### Which is updated more often, Private Browser or Diigo Browser?

Private Browser ships an update every 6 weeks, and Diigo Browser every 2 weeks. Most recently, Private Browser was updated on October 20, 2026 and Diigo Browser on October 11, 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.*