Üben vs Chemical Structures Quiz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Üben
Practice converting units of length and weight with this simple educational app. It generates random conversion tasks, perfect for children to learn and test their knowledge.
- Unit conversion practice
- Length and weight units
- Random task generation
- Correct/incorrect feedback
- Child-friendly design
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"Üben Conversion" lets you practice basic conversion of units. The app is designed to be as simple as possible. This is great for children as it is super easy to use. The app generates a task with a random length or weight and a target unit - for instance "1.5 km -> m". Enter the value for the target unit and the app shows, whether it was correct or not.
Chemical Structures Quiz
Test your knowledge of organic and biochemical compounds with multiple-choice quizzes. Learn systematic and common names for hydrocarbons, functional groups, and biomolecules. Ideal for high school students studying chemistry.
- Multiple-choice quizzes
- Learn systematic and common names
- Covers hydrocarbons, functional groups, biomolecules
- Offline functionality
- No advertisements
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Quickly learn the chemical structures of the most important organic and biochemical compounds, taught in secondary education (high school), by taking the multiple choice quizzes. Systematic name, trivial name (common name), or both are given. Hydrocarbons, functional groups, biomolecules, sugars, nucleobases, vitamins, amino acids. Similar to my other (free) apps. Works offline. No ads.
Screenshots
Verdict
The clearest difference is review sentiment: Chemical Structures Quiz at 50% against Üben's 0%. Chemical Structures Quiz also leads on update cadence (every 2 months vs every 11 months). Üben's advantage is price ($0.99 vs $3.99). On ads, in-app purchases, monetization model 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
Üben costs $0.99 and Chemical Structures Quiz $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Üben ships an update every 11 months, Chemical Structures Quiz every 2 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.
| Parameter | Üben | Chemical Structures Quiz |
|---|---|---|
| Price | $0.99 — better | $3.99 |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | admaDIC Rainer Schwarze & Annett Schwarze GbR | Marijn Dillen |
Customer experience
Üben
Chemical Structures Quiz
In-app purchases
Üben
No in-app purchases
Chemical Structures Quiz
No in-app purchases
Questions
Is Üben free?
Is Chemical Structures Quiz free?
Do Üben or Chemical Structures Quiz have ads?
Which is updated more often, Üben or Chemical Structures Quiz?
Other comparisons
