LOCK IN · trailer-load.com · maintained by F-Keys · last reviewed July 2026
THE SHORT VERSION
Nothing to install. No ads. No third-party trackers. No student email required. LOCK IN runs entirely in a web browser, collects no student data unless a student opts in, keeps everything first-party, and can be verified in your browser's developer tools in under a minute. This page is the reference for your technology, privacy, and purchasing reviewers.
LOCK IN is a browser-based freight and trailer-loading training simulator for career and technical education. Students build trailer walls under a dispatch clock and are held to real load theory — support, bracing, staggered seams, weight balance, hazmat placed low, fragile freight protected, void elimination, and a graduated safety ladder. The game is free for individual players forever. The paid product is an instructor program dashboard that shows opted-in students' competency metrics with CSV export.
Delivery model
No installer. No plugin, no browser extension, no app-store package, no MSI, no agent, no administrator rights.
No on-premise component. Nothing runs on district infrastructure; no local service and no listening port on the device.
A student opens a URL. All gameplay code runs client-side in the browser. Works on current Chrome, Edge, Firefox, and Safari — including Chromebooks. Designed for keyboard and mouse on classroom desktops and laptops.
Security & Privacy
The privacy posture is a deliberate design decision for school use, not a setting we toggled on. It is the same on every page and is externally verifiable.
No advertising and no ad technology of any kind, anywhere on the domain. Advertising was removed permanently and is barred.
No Google Analytics and no third-party analytics or tracking of any kind. No tag manager, no advertising pixels, no session-replay. A reviewer can confirm this in browser developer tools.
First-party data only. Gameplay records are stored in our own database (Supabase / PostgreSQL) with row-level security, so a signed-in student can read only their own records.
Opt-in, off by default. "Save my stats" is off until the student turns it on. With it off, nothing about gameplay leaves the device.
Double opt-in for instructor visibility. A student must separately consent before any facility or instructor can see their results.
Transport is HTTPS/TLS only (TCP 443, outbound). No inbound connections to the device.
Full technical security review is available to district IT reviewers on request — a detailed question-and-answer document covering endpoints to allow-list, content-security policy, authentication, storage, retention, and known limitations. We share the detailed version directly with your review team rather than publishing our configuration to the open web. Request it at [email protected].
Data Handling
What an account collects
A username and a password (stored hashed). That is the account.
No email address required. No real name, no phone, no home address, no date of birth, and no payment data from students.
If the student opts in: gameplay metrics — score, load integrity, density, pace, safety incidents, walls completed.
Where it lives and who touches it
Subprocessors, complete list: Supabase (database and authentication hosting) and Cloudflare (content delivery and hosting). There are no others.
Export: instructors can export their roster's competency data as CSV at any time.
Return and deletion on termination are addressed in the data privacy agreement (below).
A public leaderboard shows a player's chosen username and score. Usernames are user-selected and need not identify the student; no other field is public.
Accessibility
Implemented and shipping today: full keyboard play, colorblind modes, a reduced-motion mode, in-game text scaling, and high-contrast outlined text for mid-game readability. We describe what is built rather than claim a formal conformance level: LOCK IN has not undergone a third-party WCAG audit and we do not assert a WCAG or Section 508 conformance level. If your institution requires a formal accessibility representation as a condition of award, contact us and we will discuss scope honestly.
Content & Age Suitability
Workplace-safety and logistics themed. No violence, no graphic content.
No student-to-student chat and no free-text messaging between users. The only user-authored text visible to others is a self-chosen username on a leaderboard.
Designed for students approximately 14 and older. A middle-grades career-exploration use is possible but should be discussed before purchase.
Training supplement — not a certification. LOCK IN builds intuition and tracks readiness. It is not a certification, credential, or license, and is not a substitute for employer safety training, OSHA training, powered-industrial-truck or equipment certification, or HAZMAT / 49 CFR training.
Document Library
Informational documents are available to read and print now. Contract instruments are prepared per institution and provided on request so your counsel reviews the version you will actually sign.
Document
What it is
Access
Program & Funding Overview
What the license buys, pricing, purchasing routes, and Perkins allowability notes for a CTE director or grants officer.
Pricing is published on the main page — a site license is $1,950 per school year for one campus, unlimited students, deliberately set under common single-signature and micro-purchase thresholds. Three routes:
Purchase order. We register in your vendor system, provide a W-9, and invoice against your PO, net-30.
Perkins-funded requisition. The Program & Funding Overview maps the purchase to allowable local uses of Perkins V funds to assist your own determination.
Student course fee. A $29 per-student, per-semester option that runs through your course-fee or bookstore system and needs no procurement.
A Certificate of Insurance is provided at award on request. Current pilot programs receive free access through their first fall semester while we onboard.