# RLD Viewer vs OneOpen

The clearest difference is update cadence: OneOpen at every 9 days against RLD Viewer's every 13 months. RLD Viewer's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

RLD Viewer ships an update every 13 months, OneOpen every 9 days. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | RLD Viewer | OneOpen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 9 days** |
| Size | 0 MB | 21 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Real Life Data, Inc.](https://appshunter.io/developer/1719351860) | [Freedom Dimension (shenzhen) Technology Co., Ltd](https://appshunter.io/developer/6776064465) |

## What reviewers say

### RLD Viewer

[App page](https://appshunter.io/ios/app/rld-viewer/id6474039313)

**In-app purchases:** none


### OneOpen

[App page](https://appshunter.io/ios/app/oneopen-file-viewer/id6792251542)

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

**In-app purchases:** none


## Frequently asked questions

### Is RLD Viewer free?

RLD Viewer is free to download, with no in-app purchases.

### Is OneOpen free?

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

### Do RLD Viewer or OneOpen have ads?

Neither RLD Viewer nor OneOpen shows ads.

### Which is updated more often, RLD Viewer or OneOpen?

RLD Viewer ships an update every 13 months, and OneOpen every 9 days. Most recently, RLD Viewer was updated on October 7, 2026 and OneOpen on October 13, 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.*