# Quantum VJ HD vs ca

The clearest difference is update cadence: ca at monthly against Quantum VJ HD's every 35 months. ca also leads on ratings volume (52 vs 10). Quantum VJ HD's advantage is rating (5.0 vs 4.8) and review sentiment (100% vs 89%). On ads, in-app purchases, monetization model and device support there is nothing between them.

Quantum VJ HD costs $1.99 and ca $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quantum VJ HD holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ca has 52 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 100% of Quantum VJ HD's written reviews are positive against 89% of ca's.

Quantum VJ HD ships an update every 35 months, ca monthly. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Quantum VJ HD | ca |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/quantum-vj-hd/id1188572371/reviews)** | [4.8 (52 ratings)](https://appshunter.io/ios/app/ca-mera-plus/id1616228106/reviews) |
| Number of ratings | 10 | **52** |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 35 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 2 MB | 2 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Zolotov](https://appshunter.io/developer/324462547) | [Fritz Menzer](https://appshunter.io/developer/512896637) |

## What reviewers say

### Quantum VJ HD

[App page](https://appshunter.io/ios/app/quantum-vj-hd/id1188572371)

This app creates dynamic visual effects synchronized with audio input from your microphone or line-in. It allows real-time mixing with your camera feed and supports custom image uploads. Control various visual parameters with intuitive multitouch gestures.

**Highlights:** Audio-reactive graphics, Real-time camera stream mixing, Multitouch parameter control, Custom codeset image upload, Microphone and Line-in audio input

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Quantum VJ HD free?

Quantum VJ HD costs $1.99, with no in-app purchases.

### Is ca free?

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

### Which has better reviews, Quantum VJ HD or ca?

Quantum VJ HD is rated higher. Quantum VJ HD averages 5.0 out of 5 from 10 ratings, while ca averages 4.8 from 52 ratings.

### Do Quantum VJ HD or ca have ads?

Neither Quantum VJ HD nor ca shows ads.

### Which is updated more often, Quantum VJ HD or ca?

Quantum VJ HD ships an update every 35 months, and ca monthly. Most recently, Quantum VJ HD was updated on September 17, 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.*