# DU vs ca

The clearest difference is price: DU at Free against ca's $2.99. ca's advantage is in-app purchases (none vs 1) and rating (4.8 vs 4.5). On ratings volume, ads and device support there is nothing between them.

DU is free to download; ca costs $2.99 up front. DU sells 1 one-off in-app purchase. ca asks for nothing beyond the download.

ca holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 32 and 52 respectively. Written reviews point the same way: 71% of DU's written reviews are positive against 89% of ca's.

DU ships an update every 4 months, ca monthly. The most recent releases landed on September 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | DU | ca |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.5 (32 ratings)](https://appshunter.io/ios/app/du-vfx/id1563142095/reviews) | **[4.8 (52 ratings)](https://appshunter.io/ios/app/ca-mera-plus/id1616228106/reviews)** |
| Number of ratings | 32 | **52** |
| Positive reviews | 70.6% of reviews | **88.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 17 MB | 2 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kris Collins](https://appshunter.io/developer/288419971) | [Fritz Menzer](https://appshunter.io/developer/512896637) |

## What reviewers say

### DU

[App page](https://appshunter.io/ios/app/du-vfx/id1563142095)

Transform videos into extreme digital art with 37 unique filters. This experimental app allows you to digitally mangle and twist footage, creating unique visual effects. Save any frame as a still image or export the entire glitched-out video.

**Highlights:** 37 exclusive video filters, Apply filters in infinite combinations, Arrange video effects stack manually, Blend glitched video with original, Randomize filters for unique chaos, Save affected video frames as stills

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Still Image Export | $0.99 | one-time |


### ca

[App page](https://appshunter.io/ios/app/ca-mera-plus/id1616228106)

This app transforms your camera's live feed into unique, pixelated images and videos using cellular automata. Customize patterns with various color palettes, directions, rules, and resolutions for a retro aesthetic.

**Highlights:** Cellular automaton image interpretation, Pixelated output with unique patterns, Black and white or retro color palettes, Selfie and split camera modes, Video recording, Customizable automaton parameters

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DU free?

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

### Is ca free?

ca costs $2.99, with no in-app purchases.

### Which has better reviews, DU or ca?

ca is rated higher. DU averages 4.5 out of 5 from 32 ratings, while ca averages 4.8 from 52 ratings.

### Do DU or ca have ads?

Neither DU nor ca shows ads.

### Which is updated more often, DU or ca?

DU ships an update every 4 months, and ca monthly. Most recently, DU was updated on September 7, 2026 and ca on September 26, 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.*