# rhodopsin vs A«iD

The clearest difference is price: A«iD at Free against rhodopsin's $9.99. A«iD also leads on update cadence (every 8 days vs every 2 months). rhodopsin's advantage is ratings volume (25 vs 3) and iOS requirement (15.0 vs 17.0). On rating, review sentiment, ads and in-app purchases there is nothing between them.

A«iD is free to download; rhodopsin costs $9.99 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 — 5.0 for rhodopsin against 5.0 for A«iD. That said, the two scores are not equally well evidenced: rhodopsin has 25 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

rhodopsin ships an update every 2 months, A«iD every 8 days. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | rhodopsin | A«iD |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [5.0 (25 ratings)](https://appshunter.io/ios/app/rhodopsin/id6471383189/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/aid/id6769789198/reviews) |
| Number of ratings | **25** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Paid | **Free** |
| Size | 292 MB | 68 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Barth](https://appshunter.io/developer/1715210913) | [JOEL CHRISTOPHER RAKOWSKI](https://appshunter.io/developer/1891533829) |

## What reviewers say

### rhodopsin

[App page](https://appshunter.io/ios/app/rhodopsin/id6471383189)

This app is a video synthesizer designed for live performances. It allows users to mix video sources and apply a series of three effects. Parameters for sources, mixers, and effects can be manipulated using LFOs, envelopes, and MIDI.

**Highlights:** Video source mixing, Three sequential effects, LFO and envelope control, MIDI parameter control, Live performance focused

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

**In-app purchases:** none


### A«iD

[App page](https://appshunter.io/ios/app/aid/id6769789198)

This app synthesizes video in real time, reacting to audio input. It offers a modular chain of effects to manipulate visuals, allowing for custom masks and intricate distortions. Create unique, psychedelic visual experiences inspired by vintage video synthesizers.

**Highlights:** Audio-reactive video synthesis, Modular effects chain, Customizable masks (SVG, PNG, PDF), Real-time feedback and distortion, Color manipulation and remap, CRT phosphor and DV tape emulation, Edge detection and raster effects

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

**In-app purchases:** none


## Frequently asked questions

### Is rhodopsin free?

rhodopsin costs $9.99, with no in-app purchases.

### Is A«iD free?

A«iD is free to download, with no in-app purchases.

### Which has better reviews, rhodopsin or A«iD?

rhodopsin and A«iD are both rated 5.0 out of 5 on the App Store, from 25 and 3 ratings respectively.

### Do rhodopsin or A«iD have ads?

Neither rhodopsin nor A«iD shows ads.

### Which is updated more often, rhodopsin or A«iD?

rhodopsin ships an update every 2 months, and A«iD every 8 days. Most recently, rhodopsin was updated on September 21, 2026 and A«iD on September 20, 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.*