# IH Toolbox: Industrial Hygiene — WBGT, Noise & Exposure Limits

> Industrial hygiene fieldwork, exposure assessment, and reporting tool with web app integration. (iPhone/iPad app by Fouled Anchor Safety LLC.)

- Source: https://appshunter.io/ios/app/ih-toolbox-industrial-hygiene/id6759504921 (this page in markdown: same URL + `.md`)
- Developer: [Fouled Anchor Safety LLC](https://appshunter.io/developer/1879078888)
- Category: Business, Reference
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 32 MB
- Languages: American English
- Released: 2026-03-09
- Data updated: 2026-11-15
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ih-toolbox-industrial-hygiene/id6759504921/reviews.md

## What is IH Toolbox?

IH Toolbox brings industrial hygiene fieldwork, exposure assessment, professional calculators, reference data, and sample management together in one practical app—now with a companion web app for reviewing and reporting on a bigger screen.

Built for industrial hygienists, occupational health professionals, EHS teams, safety practitioners, consultants, and students, IH Toolbox helps you move from an initial field assessment to an organized sampling record and finished report.

PLAN, SAMPLE, AND REPORT
Organize your work by project and site. Build sampling plans, run samples in the field, record calibration information, track laboratory status, assess exposure, and generate clear survey reports.
- Manage air, noise, wipe, and bulk samples
- Record pumps and instruments by make, model, and serial number
- Capture pre- and post-sample calibration data
- Track active runs, pauses, elapsed time, and sample volume
- Import results from laboratory CSV files
- Attach photos, lab reports, and supporting evidence
- Compare results with selected occupational exposure limits
- Apply Brief & Scala or OSHA extended-shift adjustments
- Document unsampled time and calculation assumptions
- Export complete exposure survey reports
- Share and import portable project files

NEW: IH TOOLBOX ON THE WEB
With Pro, open ihtoolbox.fouledanchorsafety.com on any computer and sign in with the Apple Account you use for iCloud.
- Review projects, samples, lab results, and exposure assessments
- See percent of limit and AIHA exposure category at a glance
- Print survey reports straight from your browser
- Export sampling data to CSV
The web app is view-only and uses the same formulas as the app for duration, air volume, concentration, and validity warnings. Your records travel between your browser and your private iCloud—nothing is stored on our servers.

SEARCH EXPOSURE LIMITS
Quickly search occupational exposure limit information by chemical name or CAS number. Compare available limits from multiple countries and regulatory or professional sources without searching through separate publications.

MEASURE IN THE FIELD
Use your iPhone or iPad for convenient field-screening measurements and supporting observations, including tools for:
- Sound levels and noise contours
- Heat and cold stress
- Light levels
- Air movement and pressure differential
- Vibration
- UV conditions
Device-based readings are clearly identified as field-screening data and are not represented as calibrated compliance measurements.

CALCULATE WITH CONFIDENCE
- Air sampling and sample-volume planning
- Mixed-exposure calculations
- Ventilation and air-change calculations
- Confined-space calculations
- Respiratory protection guidance
- Fall-clearance and lifting calculations
- PPM and mg/m³ conversions
- Scientific and general unit conversions
- Chemical storage and spill-volume tools

REFERENCE AND STUDY
Keep practical occupational health and safety references close at hand, including chemical information, respiratory protection guidance, checklists, and preparation tools for CIH and CSP examinations.

PRO
Pro adds advanced record-keeping and reporting, international reference data, iCloud sync, IH Toolbox on the Web, and exam preparation.

Built by a retired US Navy Industrial Hygiene Officer, CIH and CSP.

IH Toolbox supports professional judgment but does not replace calibrated instruments, laboratory analysis, applicable regulations, or a qualified safety professional.

Terms of Use (EULA)
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy
https://www.fouledanchorsafety.com/privacy/

## Key features

- Project and site organization
- Air, noise, wipe, and bulk sample management
- Exposure assessment and limit comparison
- Field-screening measurements (sound, heat, light, etc.)
- Professional calculation tools
- Occupational exposure limit search
- Companion web app for review and reporting

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Pro | $19.99 | per year |
| Monthly Pro | $2.99 | per month |
| Military Yearly | $15.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Standard | $79.99 | one-time |
| Pro Military | $59.99 | one-time |
| CIH/CSP Test Prep | $29.99 | one-time |


## Is IH Toolbox safe?

Not enough ratings yet to assess IH Toolbox.

## Is IH Toolbox legit?

IH Toolbox: Industrial Hygiene appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for IH Toolbox is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ih-toolbox-industrial-hygiene/id6759504921/reviews.md

### 5/5 — Comprehensive and Useful

*2026-03-25*

This app has only been out for a short time, but I have already used it in the field numerous times.  Having a single app that lets me do numerous field screening events has been a lifesaver. My favorite is the light meter, once calibrated it has been very accurate.  The CIH prep is easy to use and the perfect way to do some quick studying while in line for a coffee.  Highly recommended.

## Frequently asked questions about IH Toolbox

### What is IH Toolbox used for?

IH Toolbox is designed for industrial hygiene fieldwork, helping professionals manage samples, assess exposure, and generate reports. It includes calculators for various industrial hygiene tasks and a web app for easier review.

### Does IH Toolbox have ads?

No, IH Toolbox does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features and subscriptions.

### What are the subscription options for IH Toolbox?

IH Toolbox offers several subscription tiers, including Monthly Pro ($2.99), Yearly Pro ($19.99 with a free trial), and Military Yearly ($15.99 with a free trial). There are also one-time purchase options for CIH/CSP Test Prep and Pro versions.

### Can I use IH Toolbox offline?

The description does not explicitly state offline functionality for all features. However, the companion web app requires internet access for review and reporting. Fieldwork and calculations may be available offline.

### What devices does IH Toolbox support?

IH Toolbox is available for iPhone and iPad devices, indicated by its support for iOS platforms.

### How often is IH Toolbox updated?

The latest version of IH Toolbox was released on 2026-11-12, suggesting regular updates. The app has a version number of 2.6.3.

### What is the age rating for IH Toolbox?

IH Toolbox has an age rating of 4+, making it suitable for a wide range of users, including students and professionals.

### How does the web app feature work with IH Toolbox?

The companion web app allows Pro users to review projects, samples, and exposure assessments on a larger screen via a web browser. It uses the same formulas as the mobile app and syncs data through iCloud.

## Version history (last 5 releases)

### 2.6.4 — 2026-11-13

Bug fixes and improvements.

### 2.6.3 — 2026-11-12

Bug fixes and performance improvements for a smoother, more reliable experience.

### 2.6.2 — 2026-11-11

I fixed bugs to make the app more reliable and improve your overall experience.

### 2.6.1 — 2026-10-15

Version 2.6.1 brings important calculation corrections and measured WBGT inputs to your industrial hygiene toolkit.

- Fall clearance now includes worker height in clearance totals and results.
- The NIOSH lifting equation uses corrected frequency and coupling factors and clearly flags tasks outside its range.
- STEL and ceiling exposure assessments retain sampled concentrations without full-shift dilution.
- Weekly Brief & Scala adjustments use separately entered and saved weekly hours.
- Non-detect results with insufficient analytical sensitivity now include follow-up warnings.
- Calculate WBGT heat stress from measured natural wet-bulb, globe, and air temperatures. Saved components match the displayed calculation, and estimated readings remain clearly labelled.

Previously saved exposure assessments retain their original results. Reassess affected records to apply these corrections.

### 2.6 — 2026-10-10

Enjoy a refreshed look and improved reliability with the latest bug fixes.

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All apps by Fouled Anchor Safety LLC: https://appshunter.io/developer/1879078888

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-15.*