247+ iOS apps curated and reviewed
If you already know NYCNoise Monitor, this is the deeper bench. 247+ department of environmental protection apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 2.2★ (12) | No | No | Sep 2026 | |
| 2 |  | Free | 4.0★ (3) | No | No | May 2026 | |
| 3 |  | Free | 2.3★ (3) | No | Yes | May 2026 | |
| 4 |  | Free | 4.5★ (2) | No | No | May 2026 | |
| 5 |  | Free | 3.7★ (3) | No | No | May 2026 | |
| 6 |  | Free | 4.5★ (82) | No | No | Aug 2026 | |
| 7 |  | Free | — | No | No | Aug 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
This utility anonymously monitors environmental noise levels in New York City using your phone's sensors. It analyzes sound intensity and frequency without recording audio, contributing to efforts to reduce noise pollution and improve the urban soundscape.
This app provides chemical-specific concentrations for contaminants in air, water, and soil. These levels help determine if further investigation or cleanup is needed. It is updated twice a year.
Access the complete Title 40 Code of Federal Regulations (CFR) concerning environmental protection. This app provides offline access to federal regulations administered by the EPA, with features for bookmarking, highlighting, and searching.
