Comparison

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.

Head to head
About

NPMS/PP App

Features
Read full description

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.

About

Washington State EPCRA Viewer

Features
Read full description

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

NPMS/PP App4 screens
Washington State EPCRA Viewer4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 11 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard1 real difference · 5 level
NPMS/PP App versus Washington State EPCRA Viewer: the parameters behind the verdict, then further details
ParameterNPMS/PP AppWashington State EPCRA Viewer
PriceFreeFree
Update frequencyEvery 11 monthsEvery 11 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size24 MB10 MB
Age rating4+17+
DeveloperCentre for Ecology and HydrologyDepartment of Ecology

In-app purchases

None

NPMS/PP App

No in-app purchases

None

Washington State EPCRA Viewer

No in-app purchases

Questions

Is NPMS/PP App free?
NPMS/PP App is free to download, with no in-app purchases.
Is Washington State EPCRA Viewer free?
Washington State EPCRA Viewer is free to download, with no in-app purchases.
Do NPMS/PP App or Washington State EPCRA Viewer have ads?
Neither NPMS/PP App nor Washington State EPCRA Viewer shows ads.
Which is updated more often, NPMS/PP App or Washington State EPCRA Viewer?
NPMS/PP App ships an update every 11 months, and Washington State EPCRA Viewer every 11 months. Most recently, NPMS/PP App was updated on October 24, 2026 and Washington State EPCRA Viewer on October 27, 2026.

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