Energy wheel
Gravity, motion, mechanical, electrical, pressure, sound, radiation, biological, chemical, and temperature.
For hyperscale data centers and semiconductor fabs
Know the rule. Know the why.
Field safety for every craft on data center and fab jobs, from the first-week apprentice to the safety lead.
Take a picture of a situation for guidance and hazard recognition, build today's pre-task plan, read the drawing, ask a question, or check the rule. The craft packs and calculators work even with no signal.
Free for every craft worker. Pro and company plans add the PTP Assistant and the dashboard.
Built for the decisions that matter
Complex projects. Clear safety guidance.
Turn complex safety requirements into practical direction for the work ahead. From planning through commissioning, bring better questions, clearer expectations, and stronger controls to the field.
The equipment is installed. Energization is next.
What must be verified before power is introduced, and how will affected crews know the system's status has changed?
Multiple contractors. Overlapping work. Shared exposure.
How could one crew's activities put another at risk, and what controls need to be coordinated before work begins?
The plan was approved. Field conditions have changed.
What needs to be reassessed, who needs to be involved, and what must be resolved before work resumes?
New safety tech or 20-year foreman, the answer can't wait for a call back from the office.
Photo Check
Take a picture. Get guidance and spot the hazards.
Point your phone at the task, the setup, or the condition you're unsure about. You get guidance on what to look at and the hazards ranked worst first, each with the fix and the rule behind it.
Take a picture
Trench, scaffold, lift, panel, hot work. Pick the craft so it knows what to look for.
Get the findings
Hazards ranked by how badly someone could get hurt, each with the fix and the rule behind it.
Ask a follow-up
"What if the box is only rated to 10 ft?" Keep asking about the same photo until it makes sense.
Photo Check helps you see what to look at. The competent person on site still makes the call.
PTP Assistant
Plan the work. Understand the hazards. Verify the controls.
Build a task-specific pre-task plan around your crew's work, equipment, and conditions. Turn the scope into a structured draft your crew can review, refine, and put into practice.
Define the work
Describe the task, location, equipment, and surrounding activities. Start with a scope such as: "Install overhead conduit using a scissor lift in an area shared with other trades."
Build and review the plan
Generate a draft covering job steps, tools, potential hazards, and proposed controls. Review it with your crew and confirm applicable permits and site requirements.
Identify hazardous energy
Use the energy wheel to explore energy sources associated with the task, including sources that may be overlooked. Review suggested controls against actual field conditions. Try the wheel.
Bring the plan to the crew
Print, share, or transfer the reviewed plan to your site's form in English, Spanish, or both. Use it to guide the crew briefing, verify controls before starting, and reassess when conditions change.
The crew owns the plan. Anything the assistant can't know, like who's working above you or what the load weighs, it asks instead of guessing. A supervisor and a competent person can verify their review right on the phone with their badge number.
Step 6A · The energy wheel
Circle the energy in today's work.
Every injury on a job is energy reaching a person. The wheel names the ten kinds. Pick a task a data center crew would actually run and see which ones belong on the plan, then tap any slice to see where it shows up on site.
Try a task
On the paper formCircle every source that's in the work. Not sure? Circle it and ask your crew lead. A blank wheel means the plan isn't done.
Examples are typical of hyperscale data center construction. Your site's rules, permits, and competent person still make the call.
Built by craft
21 craft packs, written for how these jobs actually get built.
Pick your craft and everything in the app follows it: the rules, the math, the paperwork, the practice.
Site and structure
- Site civil and excavation
- Concrete, formwork, and tilt-up
- Steel erection
- Precast erection and envelope
- Interior build-out and data halls
Lifting and heights
- Cranes and rigging
- Heavy equipment setting
- Access and fall protection
- Scaffolds and aerial lifts
Power and commissioning
- Electrical construction
- Commissioning and energization
Mechanical and fire
- Mechanical and piping
- Fire prevention and hot work
Health, environment, logistics
- Logistics and site traffic
- Health and industrial hygiene
- Confined space
- Environmental compliance
- DOT, hazmat, and transportation
Leadership and fabs
- Emergency response and rescue
- Safety management and leadership
- Semiconductor fab construction
In every pack
- Golden rulesThe rule, why it exists, and what it looks like when it goes wrong.
- Key numbersDepths, distances, loads, and limits, each with its source.
- Field calculatorsFall clearance, sling angles, crane chart percent, power line distance, heat, noise, and more.
- Paperwork reviewersWalk a permit, lift plan, or JSA line by line: what good looks like and the red flags.
- Audit walkA step-by-step field check you can do with the app open.
- Stop or fix drillsReal scenarios. Decide if it's stop work or fix it now, then see why.
- Quizzes and answersPractice questions and a searchable library of real site questions. A passed quiz can count as a training record for your company.
Read the drawing
Know what's on the sheet before the work starts.
Seven short modules teach drawing reading through the safety question the drawing is supposed to answer: where is it, what's in it, what's live, what's isolated.
- Drawing basics: title blocks, revisions, legends, callouts, and how to get from a plan to a detail.
- Underground utilities and duct banks: existing lines, colors, profiles, cover depths.
- Electrical one-lines, P&IDs, isometrics, mechanical plans and schedules, and work packages.
- Sample sheets drawn like the real ones. Find it drills ask for a thing on the sheet and you tap it. Spot the problem puts the sheet against the site. A quiz and a field checklist close each module.
The sheets are training samples. Your project's drawings are the only ones that count on site.
For companies
Put it on every crew, and see that it's used.
Set up your organization, invite your people by email, and get a dashboard. Members never touch a key or a setting.
Invite in one tap
Type an email, pick a role, tap Invite. They get an email, tap the link, and they're signed in and in your organization.
Assign training by badge
Any topic or drawing module, with a due date and a note. The person reads it, passes the quiz, and the record is written.
Track and download
Open, overdue, and completed assignments, who assigned them, and when. Training records as a file for your own system.
Competent persons
Designate CPs by badge for each scope. Pre-task plan reviews verify a supervisor and a CP by badge on the crew's phone.
Usage you can see
Who used what this month, Photo Checks, Coach questions, and plans, with the cost. Quiz results shared with the company.
AI on your terms
Run on your own AI account (Anthropic, OpenAI, Gemini, Vertex, Bedrock, or Azure), stored encrypted, or on ours. Members get no limits either way.
Roles: Super admin runs the organization. Admins (safety and supervisors) assign training and designate competent persons. Users do the work. Photos, plans, and questions are never stored on the server.
In your language
Say it or type it. In eight languages.
Pick your language once and every tab, button, and message changes on the spot. Every text field in the app takes your voice: tap the microphone, talk, done.
EnglishEspañol한국어日本語中文PortuguêsFrançaisKreyòl ayisyen
The pre-task plan prints in English, Spanish, or both. Craft content and Coach answers in Spanish are coming.
No signal
Works in a dead zone.
- Every pack, calculator, reviewer, drawing module, and quiz is saved on your phone after the first open.
- Photos you take with no signal wait in line and send when you're back in range.
- Add it to your home screen from the browser. It opens like any other app.
- Photo Check, the Coach, and the PTP Assistant need signal to answer.
Built to be checked
Every answer points back to the actual rule.
Each rule names its source, and says whether it's the law, a best practice, or a common project rule. When they differ, the stricter one wins.
RequirementWhat OSHA, EPA, or DOT requires, cited to the section.
Best practiceWhat experienced people do even when the law doesn't spell it out.
Project ruleWhat many owners and sites require on top of the law.
OSHA 29 CFR 1926 and 1910 · NFPA 70E, 241, 51B · ASME B30 · ANSI/ASSP Z359 · ANSI A92 · NEC · EPA 40 CFR · DOT 49 CFR
Sloping, shoring, or a trench box once anyone is in an excavation 5 ft or deeper. Under 5 ft, the competent person decides, and cracks, water, or vibration mean it needs protection too.
Site civil and excavation · Golden rule
Ask the Coach
Ask it the way you'd ask on the tailgate.
Any craft, any question. You get a plain-English answer with the rule it comes from, and you can keep asking until it clicks.
How far can my guys be from a ladder in a 6 ft trench?
No more than 25 ft of lateral travel to a ladder, stairway, or ramp once the trench is 4 ft or deeper. The ladder sits inside the protected area and sticks up 3 ft above the top.29 CFR 1926.651(c)(2) · 1926.1053(b)(1)
Box is 24 ft long. One ladder enough?
One ladder in the middle keeps everyone inside the box within about 12 ft of it, so yes, as long as nobody works outside the box. Put it where people are actually working.
Pricing
Simple for one person. Lower for a whole site.
Free
$0
Every craft pack, 17 calculators, quizzes, the drawing lessons, and a pre-task plan by hand. Works offline.
Pro, for one person
$20 a month
or $120 a year paid up front, which works out to $10 a month
Everything free, plus the PTP Assistant: say the work and get a drafted pre-task plan to review with the crew.
Companies
$20 per user a month
200 to 499 users $16 · 500 to 999 users $13 · 1,000 or more $10
Your people, crews, PTP form, training records, and dashboard. The discount applies to every active licensed user once you reach a tier. A 60-day pilot carries no license fee.
Your AI, your key. Photo Check and the live Coach run on an AI account you own (Anthropic, OpenAI, or Google), on every plan. You add the key once under Account; your provider bills the usage, and nothing is marked up. Pro covers the PTP Assistant's drafting on our key. Companies connect their own provider for everyone at once. Proposed pricing may change.
For companies
Put it on every crew.
Anyone can create an account in the app with their email, right now. Want your company set up with its own people, crews, PTP form, and dashboard? Tell us who you are and we'll get it ready and reach out.
Thanks. We'll email you when your access is approved.