NHD vs CA STEAM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NHD
This app helps participants navigate and stay updated on the National History Day - California State Contest. Create a personalized schedule for student projects like exhibits, documentaries, and websites, and use built-in maps and agendas to explore the competition.
- Create custom event schedules
- View student project details
- Access contest maps
- Check event agendas
- Stay updated on contest news
Read full descriptionHide full description
The official National History Day - California (NHD-CA) app gives you the tools to navigate and stay up-to-date on the NHD-CA State Contest. The NHD-CA app allows you to create your own schedule of student-produced exhibits, documentaries, historical papers, performances, posters, and websites. The app also helps navigate the competition with maps, agendas, and much more!
CA STEAM
This event app connects educators with STEAM experts for professional development. It focuses on strategies for lifelong learning, inclusive practices, and fostering student passion for STEAM subjects while supporting the social-emotional well-being of the education community.
- Connect with STEAM education experts
- Explore STEAM strategies
- Promote lifelong learning
- Inclusive and targeted practices
- Support social-emotional development
Read full descriptionHide full description
The STEAM Symposium is an education professional learning event that brings together passionate people seeking inspiration, energizing engagements, and the opportunity to collaborate with STEAM education experts. This event explores STEAM strategies to cultivate systems that promote life-long learning through inclusive and targeted practices, high-impact techniques, and policies. These approaches promote a sense of belonging and ignite student passion for STEAM learning while also supporting the social-emotional development of our education community.
Screenshots
Verdict
The clearest difference is ads: CA STEAM at none against NHD's shown. CA STEAM also leads on rating (5.0 vs 4.7) and monetization model (free vs ad-supported). NHD's advantage is ratings volume (6 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
CA STEAM holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: NHD has 6 ratings behind it against 1, so its average is the more settled of the two.
NHD ships an update every 11 months, CA STEAM every 8 months. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.
| Parameter | NHD | CA STEAM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 11 months | Every 8 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Sacramento County Office of Education | CALIFORNIANS DEDICATED TO EDUCATION FOUNDATION |
Customer experience
NHD
CA STEAM
In-app purchases
NHD
No in-app purchases
CA STEAM
No in-app purchases









