# OSHA Reference — Safety Regs & Heat Calculator > Offline OSHA safety regulations, incident classification, and heat stress calculator. (iPhone/iPad app by ZIma Logistics LLC.) - Source: https://appshunter.io/ios/app/osha-reference/id6760950424 (this page in markdown: same URL + `.md`) - Developer: [ZIma Logistics LLC](https://appshunter.io/developer/1883563240) - Category: Reference, Business - Price: Free with in-app purchases (on sale, was $2.99) - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 27 MB - Languages: American English - Released: 2026-03-28 - Data updated: 2026-08-17 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/osha-reference/id6760950424/reviews.md ## What is OSHA Reference? OSHA Reference puts all federal workplace safety regulations in your pocket. Browse, search, and bookmark OSHA standards from 29 CFR — plus built-in tools for incident classification and heat stress assessment. BROWSE ALL OSHA REGULATIONS Navigate the complete Code of Federal Regulations Title 29 — General Industry (1910), Construction (1926), Maritime, Agriculture, and more. Drill from Parts to Subparts to Sections with full regulation text. POWERFUL SEARCH Full-text search across every OSHA regulation. Find standards by keyword, citation number, or topic. Quick links to the most-referenced standards: Fall Protection, Scaffolding, Hazard Communication, Lockout/Tagout, and more. INCIDENT ASSESSMENT TOOL Determine if a workplace event is a Near Miss, First Aid case, or OSHA Recordable Incident. The step-by-step wizard applies 29 CFR 1904.7 recording criteria and tells you: - The classification (Near Miss, First Aid, Recordable, Lost Time, Fatality) - Whether it must go on your OSHA 300 Log - Relevant OSHA regulations based on contributing factors - Recommended corrective actions HEAT STRESS CALCULATOR Calculate heat index from temperature and humidity, with OSHA-aligned guidance: - Risk level indicator (Low through Extreme Danger) - OSHA threshold alerts at 80°F and 90°F heat index - Work/rest schedules based on heat and work intensity - Water intake recommendations - Special guidance for new or returning workers who need acclimatization WORKS OFFLINE All regulations are available offline after the initial download. No internet needed to browse, search, assess incidents, or calculate heat stress. BOOKMARKS Save frequently-referenced regulation sections for instant access. DATA SOURCE All regulation data comes directly from eCFR.gov, the official Electronic Code of Federal Regulations maintained by the U.S. Government Publishing Office. Note: This app is a reference tool and does not constitute legal advice. ## Key features - Browse all OSHA regulations - Full-text search of standards - Incident classification wizard - Heat stress calculator - Offline access - Bookmark regulations ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | OSHA Reference Pro | $6.99 | one-time | ## Frequently asked questions about OSHA Reference ### What OSHA regulations are included in OSHA Reference? OSHA Reference includes the complete Code of Federal Regulations Title 29, covering General Industry (1910), Construction (1926), Maritime, and Agriculture. All regulation data is sourced directly from eCFR.gov. ### Can I use OSHA Reference without an internet connection? Yes, OSHA Reference works offline. All regulations are available after the initial download, allowing you to browse, search, assess incidents, and calculate heat stress without an internet connection. ### How does the incident classification tool work in OSHA Reference? The tool uses a step-by-step wizard to help you determine if a workplace event is a Near Miss, First Aid case, or OSHA Recordable Incident. It applies 29 CFR 1904.7 criteria and provides classification, logging requirements, relevant regulations, and recommended corrective actions. ### What information does the heat stress calculator provide? The heat stress calculator determines the heat index from temperature and humidity, indicating the risk level from Low to Extreme Danger. It also provides OSHA threshold alerts, work/rest schedules, water intake recommendations, and acclimatization guidance. ### How often is OSHA Reference updated? The latest version of OSHA Reference is 1.4.13, last updated on June 17, 2026. Updates typically ensure the regulation data remains current with official sources. ### What devices support OSHA Reference? OSHA Reference is currently supported on iPhones. The app is rated for ages 4 and up. ### Does OSHA Reference have ads? No, OSHA Reference does not contain advertisements. It is a free application without any in-app purchases or ads. ### What is the user rating for OSHA Reference? OSHA Reference has a perfect rating of 5.0 stars based on 1 review. This indicates a highly positive user experience among its current users. ## Version history (last 5 releases) ### 1.4.13 — 2026-06-17 v1.4.13 - Improved launch stability and reliability on the latest iOS. - More dependable iCloud restore when setting up on a new device. v1.4.11 - Performance, reliability, and stability improvements. v1.4.8 **Penalty estimates now follow OSHA's official severity-and-probability method.** The penalty estimator was upgraded to match how OSHA actually proposes fines. - **Probability is now part of the estimate** — pick how likely an injury is (greater or lesser) alongside severity. Together they set the violation's gravity, exactly as OSHA's Field Operations Manual prescribes. - **More accurate dollar figures** — the estimator uses OSHA's published Gravity-Based Penalty schedule for every severity-and-probability combination, and applies the size, good-faith, and history reductions in OSHA's prescribed order. - **High-gravity violations are handled correctly** — good-faith credit is no longer applied where OSHA disallows it. v1.4.6 Performance and reliability improvements under the hood. ### 1.4.5 — 2026-05-05 Pro entitlement improvements for early supporters ### 1.4.4 — 2026-04-25 **More reliable Pro unlock.** Improvements to how the app recognizes legacy paid customers and presents the Pro upgrade path on new installs. - **Grandfathering keyed to your original app version** — if you bought the app on the App Store, Pro stays unlocked for life. The check is now deterministic across device restores and reinstalls. - **Cleaner paywall presentation on first launch** — the upgrade screen appears reliably for free installs instead of flickering during startup. - **Smoother purchase-sheet behavior** — error banners clear when you cancel, and any unexpected StoreKit response surfaces a clear retry message. ### 1.4.3 — 2026-04-24 v1.4.3 **More reliable Pro unlock.** Improvements to how the app recognizes legacy paid customers and presents the Pro upgrade path on new installs. - **Grandfathering keyed to your original app version** — if you bought the app on the App Store, Pro stays unlocked for life. The check is now deterministic across device restores and reinstalls. - **Cleaner paywall presentation on first launch** — the upgrade screen appears reliably for free installs instead of flickering during startup. - **Smoother purchase-sheet behavior** — error banners clear when you cancel, and any unexpected StoreKit response surfaces a clear retry message. v1.4.2 **Paywall polish.** Refinements to make the Pro unlock experience smoother and more dependable. - **Unlock CTA pinned above the fold** — the Buy button now stays visible regardless of dynamic-type or screen size, so you never have to scroll to find it. - **Tighter paywall loading, error, and accessibility paths** — clearer states while products load, and improved VoiceOver labeling throughout. - **Hardened entitlement handling in dev builds** — simulator and debug builds no longer pick up Pro from stale state, and flags clear cleanly on launch. - **More reliable purchase flow** — rapid taps are now handled cleanly without a narrow double-fire window. ### 1.1.4 — 2026-04-09 Fixed: Search now works after closing and reopening the app Fixed: Filter by General Industry, Construction, or Maritime now returns correct results Search errors are now visible instead of showing empty results Browse filter clarified — guides you to the Search tab for keyword searches ## More apps by ZIma Logistics LLC - [Splitr: Run Calculator](https://appshunter.io/ios/app/splitr-run-calculator/id6760271991) - [Lift: Gym Workout Tracker](https://appshunter.io/ios/app/lift-gym-workout-tracker/id6760431697) - [Ranked Choice: Group Vote](https://appshunter.io/ios/app/ranked-choice-group-vote/id6760730059) - [BugOut: Prep and Test](https://appshunter.io/ios/app/bugout-prep-and-test/id6760804087) - [Zima: Ballistics Calculator](https://appshunter.io/ios/app/zima-ballistics-calculator/id6760805492) - [Zima: Offline AI](https://appshunter.io/ios/app/zima-offline-ai/id6760844773) All apps by ZIma Logistics LLC: https://appshunter.io/developer/1883563240 ## Related topics [osha niosh heat safety](https://appshunter.io/ios/topics/osha-niosh-heat-safety) · [osha-niosh heat safety app](https://appshunter.io/ios/topics/osha-niosh-heat-safety-app) · [osha heat safety](https://appshunter.io/ios/topics/osha-heat-safety) · [osha heat stress](https://appshunter.io/ios/topics/osha-heat-stress) · [osha heat safety tool](https://appshunter.io/ios/topics/osha-heat-safety-tool) --- *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 2026-08-17.*