# bubblefilm vs Duo

The clearest difference is price: Duo at Free against bubblefilm's $3.99. Duo also leads on update cadence (every 2 days vs fortnightly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Duo is free to download; bubblefilm costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

bubblefilm ships an update fortnightly, Duo every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | bubblefilm | Duo |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 144 MB | 2 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [佩杏 钟](https://appshunter.io/developer/6781497276) | [明明 李](https://appshunter.io/developer/6802713091) |

## What reviewers say

### bubblefilm

[App page](https://appshunter.io/ios/app/bubblefilm/id6783226530)

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

**In-app purchases:** none


### Duo

[App page](https://appshunter.io/ios/app/duo/id6810893230)

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

**In-app purchases:** none


## Frequently asked questions

### Is bubblefilm free?

bubblefilm costs $3.99, with no in-app purchases.

### Is Duo free?

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

### Do bubblefilm or Duo have ads?

Neither bubblefilm nor Duo shows ads.

### Which is updated more often, bubblefilm or Duo?

bubblefilm ships an update fortnightly, and Duo every 2 days. Most recently, bubblefilm was updated on October 25, 2026 and Duo on October 24, 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.*