# FotoDa vs rhodopsin

The clearest difference is price: FotoDa at Free against rhodopsin's $9.99. FotoDa also leads on ratings volume (139 vs 25). rhodopsin's advantage is rating (5.0 vs 4.0) and review sentiment (100% vs 59%). On ads, device support and iOS requirement there is nothing between them.

FotoDa is free to download; rhodopsin costs $9.99 up front. FotoDa sells 1 one-off in-app purchase. rhodopsin asks for nothing beyond the download.

rhodopsin holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: FotoDa has 139 ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 59% of FotoDa's written reviews are positive against 100% of rhodopsin's.

FotoDa ships an update every 8 months, rhodopsin every 2 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FotoDa | rhodopsin |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.0 (139 ratings)](https://appshunter.io/ios/app/fotoda/id1291121692/reviews) | **[5.0 (25 ratings)](https://appshunter.io/ios/app/rhodopsin/id6471383189/reviews)** |
| Number of ratings | **139** | 25 |
| Positive reviews | 58.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#199** |
| Size | 1 MB | 293 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zevan Rosser](https://appshunter.io/developer/1291121691) | [Christopher Barth](https://appshunter.io/developer/1715210913) |

## What reviewers say

### FotoDa

[App page](https://appshunter.io/ios/app/fotoda/id1291121692)

Transform your photos into unique abstract art with this app. Easily create stunning collages from your existing pictures and share your artistic visions.

**Highlights:** Generate abstract art collages, Use photos from your phone, Save creations, Share artwork

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FotoDa Advanced Features | $2.99 | one-time |

**What reviewers like**

- 🎨 Creates stunning abstract art from photos
- 👍 Simple and intuitive user interface
- 🎲 Unique randomized blending algorithm
- 💰 Free version offers substantial features
- 🔄 Multiple exposure blending capabilities

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- ⏳ Extremely slow loading times
- 🚫 App won't open or launch properly
- 📱 Compatibility issues with newer iOS versions
- 🖼️ Limited control over output and composition

**Reported bugs**

- App crashes on launch with spinning spiral
- Crashes when uploading or selecting photos
- Freezes when scrolling through photo library
- Crashes when saving or tapping too quickly
- Crashes after recent iOS updates

**Requested features**

- Landscape/horizontal output format support
- Higher resolution export options
- Individual layer blending mode controls
- Ability to reposition and resize images
- Photo transparency adjustment controls


### rhodopsin

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

**Currently charting:** #199 Top Paid · Photo & Video (US App Store)

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


## Frequently asked questions

### Is FotoDa free?

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

### Is rhodopsin free?

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

### Which has better reviews, FotoDa or rhodopsin?

rhodopsin is rated higher. FotoDa averages 4.0 out of 5 from 139 ratings, while rhodopsin averages 5.0 from 25 ratings.

### Do FotoDa or rhodopsin have ads?

Neither FotoDa nor rhodopsin shows ads.

### Which is updated more often, FotoDa or rhodopsin?

FotoDa ships an update every 8 months, and rhodopsin every 2 months. Most recently, FotoDa was updated on October 29, 2026 and rhodopsin on October 25, 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.*