Halo HSE puts the calculations, references, and reports of a working Health, Safety and Environment professional into one clean iOS app. Built for the individual on-site — not enterprise procurement.
FOUR CALCULATORS
• Noise TWA — 8-hour daily exposure (L_EX,8h) against EU 2003/10/EC or OSHA 1910.95. Multi-period, evaluated LAV / UAV / ELV thresholds.
• Hand-arm vibration — A(8) daily dose per EU 2002/44/EC. Multi-tool magnitudes and durations, HSE exposure points.
• NIOSH lifting equation — full 1991 Revised Lifting Equation with all six multipliers (HM, VM, DM, AM, FM, CM), RWL and Lifting Index.
• Risk matrix — configurable 3×3, 4×4, or 5×5. Save custom hazards per site.
• Confined space gas — coming soon.
FIELD REPORTS
• Log what you saw — observation, positive observation, near miss, or incident.
• Photographs from the camera or your library, compressed on import. Location only if you ask for it, and never from a photo: GPS is stripped from every image.
• Twelve hazard categories, each citing the EU instrument that governs it — and saying so plainly when the citation is the Framework Directive's general duty rather than a specific rule.
• Link the measurement the report is about, so the PDF names the survey behind it.
• An open-items worklist, so you can see what is still outstanding at a glance.
• Free. Capture is the part you do every day.
THREE REFERENCE MODULES
• GHS — the nine pictograms with 22 representative H- and P-statements, searchable. Not the full CLP Annex III list.
• EU directive quick-reference — 2003/10/EC, 2002/44/EC, 89/391/EEC, 89/656/EEC, 90/269/EEC, 92/58/EEC in plain language.
• 30 toolbox talks — pre-shift briefings, ready to read aloud.
BUILT FOR THE FIELD
• Works fully offline — every calculator, every reference, every saved record.
• iCloud sync across your devices (optional).
• PDF export signed with your name, role, and certification.
• Change history on every record.
• Available in English, Lithuanian, Polish, and German.
• No accounts, no servers — your data stays on your device.
GET STARTED FOR FREE
• Noise TWA calculator
• NIOSH lifting equation
• Field reports, with up to three photographs and PDF export
• GHS pictograms reference
• Watermarked PDF exports
HALO HSE PRO — €14.99, one-time
• Hand-arm vibration calculator
• Risk matrix (3×3 to 5×5)
• Confined space gas (coming soon)
• EU directive quick-reference
• 30 toolbox talks
• Unwatermarked PDF exports
• Unlimited photographs per field report
• CSV export of your report register
• Expense receipt for employer reimbursement
Pro is a one-time purchase through Apple. Buy it once, own it forever, use it on every iPhone signed in to your Apple ID. If your employer reimburses, Halo HSE generates a professional expense receipt from within the app.
Support: hello@halosafety.io
Terms: halosafety.io/terms
Privacy: halosafety.io/privacy
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