# G Calc Pro vs Umbra Browser

The clearest difference is update cadence: G Calc Pro at every 3 weeks against Umbra Browser's every 2 months. G Calc Pro also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. G Calc Pro sells 1 one-off in-app purchase and Umbra Browser sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

G Calc Pro ships an update every 3 weeks, Umbra Browser every 2 months. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | G Calc Pro | Umbra Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/umbra-browser/id6761460876/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 21 MB | 3 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 9+ | 17+ |
| Developer | [晓龙 高](https://appshunter.io/developer/1872258959) | [Kevin Stewart](https://appshunter.io/developer/1840294398) |

## What reviewers say

### G Calc Pro

[App page](https://appshunter.io/ios/app/g-calc-pro/id6759799669)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| G Calc Pro | $0.99 | one-time |


### Umbra Browser

[App page](https://appshunter.io/ios/app/umbra-browser/id6761460876)

A privacy-focused browser that isolates each tab into a secure vault, blocking ads and trackers. It offers encrypted bookmarks, anti-fingerprinting, and optional integration with a password manager. All features are available for free.

**Highlights:** Tab isolation with per-tab data destruction, Built-in ad and tracker blocking, Anti-fingerprinting technologies, Encrypted bookmarks and DNS-over-HTTPS, Optional password manager integration, Reader mode for distraction-free browsing, Userscript support for custom functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eclipse Monthly | $3.99 | per month |
| Eclipse Yearly | $29.99 | per year |
| Eclipse Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is G Calc Pro free?

G Calc Pro is free to download, with in-app purchases available.

### Is Umbra Browser free?

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

### Do G Calc Pro or Umbra Browser have ads?

Neither G Calc Pro nor Umbra Browser shows ads.

### Which is updated more often, G Calc Pro or Umbra Browser?

G Calc Pro ships an update every 3 weeks, and Umbra Browser every 2 months. Most recently, G Calc Pro was updated on October 10, 2026 and Umbra Browser on October 18, 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.*