STEMulator vs MathU Merlin
Price, ratings, monetisation and update history for both apps, side by side β 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. Weβre sharing our knowledge. The STEMulator is for sharing.
MathU Merlin
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Step into the future of teaching with Merlin, the ultimate companion app for educators. As part of the MathU Teaching Emporium ecosystem, Merlin revolutionises how you approach lesson planning, analysis, and student engagement. Merlin harnesses cutting-edge analytics to provide insights into your lessons. Based on this analysis, the app empowers you to seamlessly assign tailored homework to your class β ensuring personalised learning like never before. Key Features: Lesson Analysis: Gain feedback on lessons, highlighting strengths and areas for improvement. Smart Homework Assignment: Automatically generate targeted homework aligned with your lesson goals and student needs. Integrated Ecosystem: Works seamlessly with the MathU ecosystem, providing a unified platform for planning, tracking, and optimizing learning outcomes. Time-Saving Automation: Reduce admin time and focus on what you do best β teaching! Merlin is designed to be intuitive, efficient, and transformative β bringing you closer to your students and their unique learning journeys. Whether you're a seasoned teacher or new to the classroom, Merlin equips you with the tools to teach smarter, not harder.
Screenshots
Verdict
The clearest difference is update cadence: MathU Merlin at every 4 weeks against STEMulator's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
STEMulator ships an update every 9 months, MathU Merlin every 4 weeks. The most recent releases landed on May 19, 2026 and September 8, 2026 respectively.
| Parameter | STEMulator | MathU Merlin |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 4 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 14.0 β better |
| Further details β not scored | ||
| Size | 35 MB | 79 MB |
| Age rating | 17+ | 4+ |
| Developer | STEMulator | MathU Teaching Emporium (Pty) Ltd |
In-app purchases
STEMulator
No in-app purchases
MathU Merlin
No in-app purchases
Questions
Is STEMulator free?
Is MathU Merlin free?
Do STEMulator or MathU Merlin have ads?
Which is updated more often, STEMulator or MathU Merlin?
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