NPMS/PP App vs Washington State EPCRA Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NPMS/PP App
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The National Plant Monitoring Scheme (NPMS) is a habitat-based plant monitoring scheme designed by BSBI, UKCEH, Plantlife and JNCC. The aim is to collect data to provide an annual indication of changes in plant abundance and diversity. The Plant Portal is a new website for capturing plant quadrat data. It allows organisations to use the methods developed by the scheme to monitor their own landscapes or areas.
Washington State EPCRA Viewer
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Developed by Washington State Department of Ecology’s Hazardous Waste and Toxics Reduction program (HWTR), this password-protected app provides first responders with valuable information about hazardous chemicals in thousands of Washington state facilities. The app displays data from facilities that filed a Tier Two Emergency & Hazardous Chemical Report with the State Emergency Response Commission (SERC). These reports are required under the federal Emergency Planning and Community Right-to-Know Act (EPCRA). The app will show first responders: · Facility data by Local Emergency Planning Committee (LEPC) or Tribal Lands. · Facility details and chemical-specific information.
Screenshots
Verdict
The clearest difference is iOS requirement: Washington State EPCRA Viewer at 13.0 against NPMS/PP App's 15.0. On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 11 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | NPMS/PP App | Washington State EPCRA Viewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 months | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | Centre for Ecology and Hydrology | Department of Ecology |
In-app purchases
NPMS/PP App
No in-app purchases
Washington State EPCRA Viewer
No in-app purchases
Questions
Is NPMS/PP App free?
Is Washington State EPCRA Viewer free?
Do NPMS/PP App or Washington State EPCRA Viewer have ads?
Which is updated more often, NPMS/PP App or Washington State EPCRA Viewer?
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