Comparison

WARN NJDEP vs Project Monarch Science

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WARN NJDEP

Report environmental incidents, abuses, and complaints impacting New Jersey directly to the NJDEP. Pinpoint locations, attach photos, and easily contact the WARNDEP hotline. This app is for non-emergency reporting only.

Highlights
  • Report environmental incidents
  • Pinpoint incident location via GPS
  • Attach photos to submissions
  • Directly contact WARNDEP hotline
  • Submit information to NJDEP
Features
Read full description

WARN NJ DEP allows you to submit information about environmental incidents, abuses and complaints in or impacting New Jersey directly to the New Jersey Department of Environmental Protection (NJDEP). This free app allows you to: • Report environmental incidents such as odors, improper disposal or storage of potentially hazardous materials, sewage discharges, chemical spills, encroachment of wetlands or streams, smoke or dust, underground storage tank issues, and more. • Pinpoint the exact location of an incident by using your mobile phone’s GPS feature. • Capture a picture of the incident and include it in your submission. • Automatically dial the 1-877-WARNDEP hotline number. Note: This application is not intended for emergency purposes. In the event of a life hazard or emergency, call 911 or your local police department. Wi-Fi or a data connection is required.

About

Project Monarch Science

This app transforms your smartphone into a receiver for tiny tracking devices attached to monarch butterflies. By crowdsourcing data, it helps scientists monitor butterfly migration patterns in unprecedented detail, aiding conservation efforts.

Highlights
  • Crowdsourced tracking network
  • Monarch butterfly migration monitoring
  • Detailed movement data
  • Habitat conservation insights
  • Utilizes Bluetooth frequency
  • Citizen science participation
Features
Read full description

Project Monarch is an effort to leverage recent advances in tracking technology, that have enabled the development of the world’s smallest tracking devices, to track Monarch migration. The tracking devices on the monarch butterflies transmit at the same frequency as Bluetooth which means that everyone with a smartphone is carrying around a receiver in their pocket! This revolutionary approach can potentially create the largest wildlife tracking receiver network in the world, but only if members of the public download and use the free Project Monarch app. These data will allow scientists to track the movements of monarch butterflies in detail never previously imagined. We will see how monarchs utilize key stopping points along migratory routes and learn more about the speed and direction of migration, helping identify the most important sites for habitat conservation and restoration. Ultimately, this technology can help guide conservation planning and lead to increases in monarch populations.

Screenshots

WARN NJDEP3 screens
Project Monarch Science4 screens

Verdict

The call

The clearest difference is update cadence: Project Monarch Science at every 10 days against WARN NJDEP's every 25 months. Project Monarch Science also leads on rating (4.0 vs 3.7) and ratings volume (28 vs 3). WARN NJDEP's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Project Monarch Science holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: Project Monarch Science has 28 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

WARN NJDEP ships an update every 25 months, Project Monarch Science every 10 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
WARN NJDEP versus Project Monarch Science: the parameters behind the verdict, then further details
ParameterWARN NJDEPProject Monarch Science
PriceFreeFree
Rating3.7 (3 ratings)4.0 (28 ratings) — better
Positive reviews—60.0% of reviews
Number of ratings328 — better
Update frequencyEvery 25 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size42 MB83 MB
Age rating4+4+
DeveloperNew Jersey Department of TreasuryCellular Tracking Technologies

Customer experience

WARN NJDEP

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

Project Monarch Science

All ratings27 ratings
Positive74.1%
Neutral0.0%
Negative25.9%
Written reviews15 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

WARN NJDEP

No in-app purchases

None

Project Monarch Science

No in-app purchases

Questions

Is WARN NJDEP free?
WARN NJDEP is free to download, with no in-app purchases.
Is Project Monarch Science free?
Project Monarch Science is free to download, with no in-app purchases.
Which has better reviews, WARN NJDEP or Project Monarch Science?
Project Monarch Science is rated higher. WARN NJDEP averages 3.7 out of 5 from 3 ratings, while Project Monarch Science averages 4.0 from 28 ratings.
Do WARN NJDEP or Project Monarch Science have ads?
Neither WARN NJDEP nor Project Monarch Science shows ads.
Which is updated more often, WARN NJDEP or Project Monarch Science?
WARN NJDEP ships an update every 25 months, and Project Monarch Science every 10 days. Most recently, WARN NJDEP was updated on October 24, 2026 and Project Monarch Science on October 27, 2026.

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