# Duolix vs OnLens

The clearest difference is update cadence: OnLens at daily against Duolix's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Duolix sells 2 in-app purchases, starting at $7.99 per 7 days and OnLens sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Duolix ships an update weekly, OnLens daily. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Duolix | OnLens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 29 MB | 3 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Codvia](https://appshunter.io/developer/1887299343) | [建中 李](https://appshunter.io/developer/1894500745) |

## What reviewers say

### Duolix

[App page](https://appshunter.io/ios/app/duolix-dual-camera-app/id6761673822)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DualFrame Weekly | $7.99 | per 7 days |
| DualFrame Yearly | $49.99 | per year |


### OnLens

[App page](https://appshunter.io/ios/app/onlens/id6766059430)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| onLens | $1.99 | one-time |


## Frequently asked questions

### Is Duolix free?

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

### Is OnLens free?

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

### Do Duolix or OnLens have ads?

Neither Duolix nor OnLens shows ads.

### Which is updated more often, Duolix or OnLens?

Duolix ships an update weekly, and OnLens daily. Most recently, Duolix was updated on October 17, 2026 and OnLens on October 12, 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.*