168+ iOS apps curated and reviewed
The best niosh nle apps on iPhone average 3.7★ across 168+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 2.8★ (10) | No | No | May 2026 |
| 2 |  | Free | 4.7★ (17K) | No | No | Aug 2026 |
| 3 |  | Free | 4.6★ (36K) | No | Yes | Aug 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | Free | 2.5★ (312) | No | No | Aug 2026 |
| 6 |  | Free | — | No | No | May 2026 |
| 7 |  | Free | 4.4★ (382) | No | Yes | Jul 2026 |
| 8 |  | Free | 3.4★ (17) | No | No | Jul 2026 |
This utility calculates the Recommended Weight Limit (RWL) and Lifting Index (LI) for single or multiple lifting tasks based on the NIOSH Lifting Equation. It helps assess physical stress to prevent low back musculoskeletal disorders.
This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.
Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.
This app syncs with Bluetooth-enabled carbon monoxide monitors to view stored measurements and logs. It serves as a mobile companion for devices like the NSI 6000.
This tool helps outdoor workers stay safe by providing real-time heat index information and hourly forecasts specific to their location. It offers occupational safety recommendations and details on heat-related illnesses and their first aid.
This app measures your daily noise exposure to help you understand when sound levels exceed safe limits. It provides real-time alerts and works in the background, assisting you in protecting your hearing from potential damage.
This app provides essential industrial hygiene data for 677 chemicals, helping workers and professionals identify and manage occupational hazards. It includes exposure limits, chemical identifiers, and search functionalities for quick access to critical safety information.
This free tool helps small businesses identify workplace hazards with self-inspection checklists. It provides resources and covers various safety and health topics relevant to general industry. Information is saved locally and not shared with any agencies.
This tool calculates the heat index based on temperature and humidity, providing OSHA-calibrated risk levels and protective recommendations for outdoor work. It also includes a reference guide for heat-related illnesses and first aid.
This app enables smart device configuration and maintenance of specific gas detectors via Bluetooth. It allows users to view live readings, check status, perform calibrations, and adjust alarm thresholds remotely.
This app provides industrial hygiene information to help users identify and manage occupational chemical hazards. It includes data from NIOSH and the DOT's Emergency Response Guidebook, reformatted for easy mobile reading. Access essential safety information offline.
Calculate recommended weight limits for lifting tasks using the revised NIOSH equation. This tool helps assess risks and suggests improvements for manual handling in various work situations. It's based on an internationally recognized method.
