Complete and free
Basic formulas
Use the free DINT, Ohm's Law, and phase-current tools for everyday checks. The arithmetic is not the paid product.
Membership
Choose the tools for your work.
Start with a complete free calculation. Add advanced workbenches for $5/month or the knowledge base, training and field records for $15/month.
Membership tiers
Everyday calculations stay free. Paid plans add controls-specific workbenches and structured field records; customer specifications and qualified engineering judgment still govern the work.
Free Toolkit
Complete everyday calculators plus real previews that show the advanced workflows before anyone pays.
$0
- Calculator, converter, and simulator previews
- Knowledge-base article previews
- Advanced tool previews
- Free Pro Toolkit Library overview
Best first step for checking the site quality.
Toolkit
Controls-specific workbenches for deeper conversion, simulation, configuration, and field-review tasks.
$5/mo
- Full advanced-tool operation
- Batch and guided workflows
- Copy/export-ready outputs where supported
- Documents bought separately or with Pro Toolkit
Best when the customer only needs advanced utilities.
Best for recurring field work
Pro Toolkit
Toolkit workbenches plus structured field records for commissioning, troubleshooting, backup, recovery, and handoff.
$15/mo
- Everything in Toolkit
- Full watermarked knowledge-base procedures and guides
- Full PLC trainer, advanced simulators, and field records
- Selected paid downloads included
Best when the customer needs tools, procedures, and downloadable field documents.
What paid plans are—and are not—for
Pay when a ready-to-use, controls-specific workflow and repeatable field record saves more time than building and maintaining it yourself. Customer specifications and qualified engineering judgment still govern the work.
Useful with review
General AI or custom code
Use them to explain a formula or prototype a workflow. You still supply and verify the governing specification, assumptions, and field context.
Toolkit and Pro
Ready-to-use controls workflows
Pay for maintained, controls-specific inputs and rules, guided review, browser-local records, and repeatable field outputs where supported.
What can I finish?
Free: Calculate an analog channel with your own ranges, check a subnet, convert a DINT, or estimate load current.
Toolkit: Inspect a Logix export, compare tag revisions, decode register pairs, and complete advanced engineering checks.
Pro: Use complete knowledge-base procedures, build reusable field records, and practice with the full PLC trainer and advanced simulators.
Manage billing and cancellation from your account. Local records stay on this device; export important work for backup.