# 1Lens vs OneOpen

The clearest difference is price: OneOpen at Free against 1Lens's $0.99. 1Lens's advantage is in-app purchases (none vs 2) and update cadence (daily vs every 3 days). On ads, device support and iOS requirement there is nothing between them.

OneOpen is free to download; 1Lens costs $0.99 up front. OneOpen sells 2 in-app purchases, starting at $0.99 per year. 1Lens asks for nothing beyond the download.

1Lens ships an update daily, OneOpen every 3 days. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | 1Lens | OneOpen |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Size | 2 MB | 75 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [均伟 朱](https://appshunter.io/developer/1805502239) | [Freedom Dimension (shenzhen) Technology Co., Ltd](https://appshunter.io/developer/6776064465) |

## What reviewers say

### 1Lens

[App page](https://appshunter.io/ios/app/1lens/id6755482195)

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

**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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Access Annual | $0.99 | per year |
| Advanced Access Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is 1Lens free?

1Lens costs $0.99, with no in-app purchases.

### Is OneOpen free?

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

### Do 1Lens or OneOpen have ads?

Neither 1Lens nor OneOpen shows ads.

### Which is updated more often, 1Lens or OneOpen?

1Lens ships an update daily, and OneOpen every 3 days. Most recently, 1Lens was updated on October 30, 2026 and OneOpen on November 1, 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.*