STEMulator vs SciQuiz Premium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STEMulator
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Calling all teenagers and younger. A virtual world full of informative animations on all things STEM (Science, Technology, Engineering & Mathematics), from pumping human hearts to power station turbines, microbes to mountains, farming to factories. How does it work? How is it made? What career and subject choices? Our simple visual navigation system allows you to explore the world at leisure. Get behind the scenes. Still in its infancy, we're hungry for additional content. Think Wikipedia. No in-app purchases required. We’re sharing our knowledge. The STEMulator is for sharing.
SciQuiz Premium
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SciQuiz Premium combines 45,000+ science quiz questions, interactive 3D molecular models, and science-inspired puzzle and strategy games, with full access, no ads, and no third-party tracking. New to SciQuiz? Try the ad-supported SciQuiz: Science Quiz to experience the same core gameplay before choosing Premium.
Screenshots
Verdict
The clearest difference is price: STEMulator at Free against SciQuiz Premium's $0.99. SciQuiz Premium's advantage is update cadence (every 3 months vs every 9 months). On ads, in-app purchases, device support and iOS requirement 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
STEMulator is free to download; SciQuiz Premium costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
STEMulator ships an update every 9 months, SciQuiz Premium every 3 months. The most recent releases landed on October 5, 2026 and September 23, 2026 respectively.
| Parameter | STEMulator | SciQuiz Premium |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 293 MB |
| Age rating | 17+ | 4+ |
| Developer | STEMulator | Jianfeng Wu |
In-app purchases
STEMulator
No in-app purchases
SciQuiz Premium
No in-app purchases
Questions
Is STEMulator free?
Is SciQuiz Premium free?
Do STEMulator or SciQuiz Premium have ads?
Which is updated more often, STEMulator or SciQuiz Premium?
Other comparisons
