# SynQuiz vs ColoriDisc

The clearest difference is update cadence: ColoriDisc at daily against SynQuiz's every 31 months. SynQuiz's advantage is iOS requirement (10.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SynQuiz ships an update every 31 months, ColoriDisc daily. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SynQuiz | ColoriDisc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (7 ratings)](https://appshunter.io/ios/app/synquiz/id960687121/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Daily** |
| Monetization | Free | — |
| Size | 16 MB | 21 MB |
| Requires iOS | **10.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Radboud University Nijmegen](https://appshunter.io/developer/624561804) | [Karl Gegenfurtner](https://appshunter.io/developer/1795329205) |

## What reviewers say

### SynQuiz

[App page](https://appshunter.io/ios/app/synquiz/id960687121)

Explore the fascinating world of synaesthesia with playful tests designed to reveal if you experience interconnected senses. Discover if your grapheme-colour synaesthesia aligns with ongoing genetic research and potentially contribute to scientific studies.

**Highlights:** Four playful synaesthesia tests, Grapheme-colour synaesthesia assessment, Application for genetic studies, Test scores sharing, English, German, and Dutch languages

**Features:** macOS Compatibility

**In-app purchases:** none


### ColoriDisc

[App page](https://appshunter.io/ios/app/coloridisc/id6760941397)

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

**In-app purchases:** none


## Frequently asked questions

### Is SynQuiz free?

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

### Is ColoriDisc free?

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

### Do SynQuiz or ColoriDisc have ads?

Neither SynQuiz nor ColoriDisc shows ads.

### Which is updated more often, SynQuiz or ColoriDisc?

SynQuiz ships an update every 31 months, and ColoriDisc daily. Most recently, SynQuiz was updated on October 24, 2026 and ColoriDisc on October 6, 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.*