HPS 2025 vs ReactorN
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
HPS 2025
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The official app of HPS 2025. The Health Physics Society is a professional organization whose mission is excellence in the science and practice of radiation safety. Society activities include encouraging research in radiation science, developing standards, and disseminating radiation safety information. Society members are involved in understanding, evaluating, and controlling the potential risks from radiation relative to the benefits.
ReactorN
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Reactor N is a free way for students and the nuclear-curious to explore the U.S. nuclear industry โ built to help with your studies, coursework, and thesis. WHAT YOU CAN DO โ ALL FREE โข Browse all 94 U.S. nuclear reactors in one place โ status, location, and key facts โข Explore the energy-vs-AI-datacenter demand story reshaping the grid (the convergence layer) โข Follow live regulatory activity (NRC + Federal Register) โข Check energy market data (EIA) โข Ask the AI copilot questions about the U.S. nuclear fleet โข Prep for the reactor operator certification exam โ flashcards, quizzes, and progress tracking BUILT FOR STUDENTS Whether you study nuclear engineering, energy, policy, or finance, Reactor N gives you real industry data instead of a textbook โ useful for class projects, presentations, thesis research, and studying for the reactor operator (RO/SRO) licensing exam. Data is drawn from public sources (NRC, EIA, U.S. Federal Register) so you can trace and cite it. EVERYTHING IS FREE No account required. No subscription. No paywall. Nothing is sold in, through, or in connection with the app. Open the app and explore. ABOUT Reactor N is an independent product from OpenAgent. It aggregates publicly available information for educational and informational purposes only, and is not affiliated with or endorsed by the U.S. Nuclear Regulatory Commission, the U.S. Energy Information Administration, or any utility or reactor operator. All trademarks belong to their respective owners. Privacy Policy: https://openagent-legal.vercel.app/reactorn/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: HPS 2025 at 13.4 against ReactorN's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | HPS 2025 | ReactorN |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 13.4 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 51 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | HEALTH PHYSICS SOCIETY INC | TYH DANIEL MC LEAN |
In-app purchases
HPS 2025
No in-app purchases
ReactorN
No in-app purchases
Questions
Is HPS 2025 free?
Is ReactorN free?
Do HPS 2025 or ReactorN have ads?
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