# Mercury @ Work vs Cio Browser

The clearest difference is in-app purchases: Mercury @ Work at none against Cio Browser's 3. Mercury @ Work also leads on iOS requirement (16.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Mercury @ Work | Cio Browser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 138 MB | 1 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Mercury Wireless Inc](https://appshunter.io/developer/1482429992) | [ADRIAN DANIEL CIOC](https://appshunter.io/developer/1818602503) |

## What reviewers say

### Mercury @ Work

[App page](https://appshunter.io/ios/app/mercury-work/id1623408395)

**Features:** Vision Pro support

**In-app purchases:** none


### Cio Browser

[App page](https://appshunter.io/ios/app/cio-browser-fast-and-private/id6761765762)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cio Pro Monthly | $1.99 | per month |
| Cio Pro Annual | $14.99 | per year |
| Cio Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Mercury @ Work free?

Mercury @ Work is free to download, with no in-app purchases.

### Is Cio Browser free?

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

### Do Mercury @ Work or Cio Browser have ads?

Neither Mercury @ Work nor Cio Browser shows ads.

### Which is updated more often, Mercury @ Work or Cio Browser?

Mercury @ Work ships an update every 3 months, and Cio Browser every 3 months. Most recently, Mercury @ Work was updated on October 25, 2026 and Cio Browser on October 26, 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.*