# ca vs sleepy vidOS

The clearest difference is price: sleepy vidOS at Free against ca's $2.99. ca's advantage is update cadence (monthly vs every 3 months) and review sentiment (89% vs 75%). On rating, ads, in-app purchases and device support there is nothing between them.

sleepy vidOS is free to download; ca costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for ca against 4.7 for sleepy vidOS. That said, the two scores are not equally well evidenced: ca has 54 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 89% of ca's written reviews are positive against 75% of sleepy vidOS's.

ca ships an update monthly, sleepy vidOS every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | ca | sleepy vidOS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.8 (54 ratings)](https://appshunter.io/ios/app/ca-mera-plus/id1616228106/reviews)** | [4.7 (9 ratings)](https://appshunter.io/ios/app/sleepy-vidos/id6448588001/reviews) |
| Number of ratings | **54** | 9 |
| Positive reviews | **88.9% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 26 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fritz Menzer](https://appshunter.io/developer/512896637) | [Ronald Sardarian](https://appshunter.io/developer/1308510931) |

## What reviewers say

### 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


### sleepy vidOS

[App page](https://appshunter.io/ios/app/sleepy-vidos/id6448588001)

Create unique 3D visuals for performances, music videos, or personal enjoyment. This app is designed to be controlled by a MIDI controller, offering extensive customization of shapes, colors, and effects.

**Highlights:** 3D SDF Oscillators with shape sculpting, Per-Shape 3D Domain Repetition, Live Shape Orientation Control, OKLab Colorizer/Selector, Internal Modulations for every control, Audio Follower for every parameter

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ca free?

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

### Is sleepy vidOS free?

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

### Which has better reviews, ca or sleepy vidOS?

ca is rated higher. ca averages 4.8 out of 5 from 54 ratings, while sleepy vidOS averages 4.7 from 9 ratings.

### Do ca or sleepy vidOS have ads?

Neither ca nor sleepy vidOS shows ads.

### Which is updated more often, ca or sleepy vidOS?

ca ships an update monthly, and sleepy vidOS every 3 months. Most recently, ca was updated on November 3, 2026 and sleepy vidOS on November 3, 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.*