# SynQuiz vs Intervals by Staventabs

The clearest difference is in-app purchases: SynQuiz at none against Intervals by Staventabs's 1. SynQuiz also leads on iOS requirement (10.0 vs 18.0). Intervals by Staventabs's advantage is update cadence (every 4 months vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. Intervals by Staventabs sells 1 one-off in-app purchase. SynQuiz asks for nothing beyond the download.

SynQuiz ships an update every 31 months, Intervals by Staventabs every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SynQuiz | Intervals by Staventabs |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 16 MB | 14 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Radboud University Nijmegen](https://appshunter.io/developer/624561804) | [Ivan Korovin](https://appshunter.io/developer/937929054) |

## 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


### Intervals by Staventabs

[App page](https://appshunter.io/ios/app/intervals-by-staventabs/id6754854239)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intervals Premium | $4.99 | one-time |


## Frequently asked questions

### Is SynQuiz free?

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

### Is Intervals by Staventabs free?

Intervals by Staventabs is free to download, with in-app purchases available.

### Do SynQuiz or Intervals by Staventabs have ads?

Neither SynQuiz nor Intervals by Staventabs shows ads.

### Which is updated more often, SynQuiz or Intervals by Staventabs?

SynQuiz ships an update every 31 months, and Intervals by Staventabs every 4 months. Most recently, SynQuiz was updated on October 24, 2026 and Intervals by Staventabs 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.*