SynQuiz vs Intervals by Staventabs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SynQuiz
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.
- Four playful synaesthesia tests
- Grapheme-colour synaesthesia assessment
- Application for genetic studies
- Test scores sharing
- English, German, and Dutch languages
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SynQuiz is an app that contains four playful tests for synaesthesia. Synaesthesia is a neurodevelopmental trait estimated to occur in about 4% of the general human population. For people with synaesthesia two or more senses appear to be interconnected; for example a synaesthete perceives certain concepts, such as letters, numbers, days of the week, or months of the year as inherently coloured. Many synaesthetes are not aware that their perceptions are unusual and are often surprised to find out that others do not think of letters, numbers, or weekdays in colours. SynQuiz tests this type of synaesthesia, frequently referred to as grapheme-colour synaesthesia. The first three short quizzes are designed to give you a taste of what synaesthesia might be like and find out whether you might be experiencing it yourself. The fourth full test for letters & numbers gives an indication whether your type of synaesthesia is suitable for the ongoing genetic studies at the Max Planck Institute for Psycholinguistics. If so, you can directly apply and you may be invited later to provide a small sample of saliva (from which we can obtain your DNA). SynQuiz is developed within the Language in Interaction project (a large language-brain research project), in which currently more interesting language apps are being developed. Features: - Three playful quizzes testing synaesthesia for 1) letters and numbers, 2) days of the week, or 3) months of the year. - One longer test for letters & numbers after which you can directly apply for participating in ongoing genetic studies - Post your test scores to social media - Languages: English, German and Dutch
Intervals by Staventabs
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Intervals by Staventabs – train your musical ear easily and effectively! Learn to recognize intervals by ear, improve your relative and perfect pitch, and develop your sense of harmony. The app is suitable for both beginners and advanced musicians. App Features: 1. Varied exercises: contrasting intervals, minor and major intervals, middle-range and wide intervals, mixed and advanced exercises. 2. Detailed information for each interval: see the interval on the staff, listen to it, and explore all its parameters. 3. Create your own exercises: choose intervals and customize tests to your preferences. 4. Premium features: full access to all exercises and intervals for custom practices. No subscriptions or recurring payments. 5. Suitable for all skill levels. Train your ear, improve your interval recognition and harmony skills – become a more professional musician with Intervals by Staventabs!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SynQuiz | Intervals by Staventabs |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (7 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 31 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple TV — better |
| Requires iOS | 10.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 16 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Radboud University Nijmegen | Ivan Korovin |
In-app purchases
SynQuiz
No in-app purchases
Intervals by Staventabs
- Intervals Premium$4.99
Questions
Is SynQuiz free?
Is Intervals by Staventabs free?
Do SynQuiz or Intervals by Staventabs have ads?
Which is updated more often, SynQuiz or Intervals by Staventabs?
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