# Opticalia Bruman vs Discover Douro

The clearest difference is update cadence: Discover Douro at every 3 weeks against Opticalia Bruman's every 14 months. Discover Douro also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Opticalia Bruman ships an update every 14 months, Discover Douro every 3 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Opticalia Bruman | Discover Douro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Size | 22 MB | 76 MB |
| Requires iOS | **11.0** | 12.4 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Feediu](https://appshunter.io/developer/1561934628) | [CIM Douro](https://appshunter.io/developer/1610098606) |

## What reviewers say

### Opticalia Bruman

[App page](https://appshunter.io/ios/app/opticalia-bruman/id1619138464)

**In-app purchases:** none


### Discover Douro

[App page](https://appshunter.io/ios/app/discover-douro/id6475686695)

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

**In-app purchases:** none


## Frequently asked questions

### Is Opticalia Bruman free?

Opticalia Bruman is free to download, with no in-app purchases.

### Is Discover Douro free?

Discover Douro is free to download, with no in-app purchases.

### Which is updated more often, Opticalia Bruman or Discover Douro?

Opticalia Bruman ships an update every 14 months, and Discover Douro every 3 weeks. Most recently, Opticalia Bruman was updated on November 7, 2026 and Discover Douro on November 4, 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.*