Simple by design
The price is zero.
The standard is not.
Every calculator, document generator and guide is available in full—without an account, subscription, watermark or feature limit.
Complete access
$0
forever
Everything in the workbench.
- All 48 maintenance, reliability, energy, quality and asset calculators
- All 8 procedure and instruction generators, with unlimited documents
- Print, copy and export without a watermark
- Formula, benchmark, methodology and practical recommendation
- Local browser processing—no operational-data upload
How free stays sustainable.
No business model is invisible. Here is ours.
Display advertising
Predictable in-content placements help cover hosting and ongoing development.
Optional donations
A one-time contribution is available for visitors who found a tool valuable. It is never required.
No paid tier
There is no Pro plan holding back exports, results, formulas or generators.
Saved you time?
A contribution helps keep the tools free and funds the next one.
Questions, answered.
Is everything on this site really free?
Yes. Every calculator and all eight generators run at no cost, without an account or usage limit.
Is there a paid Pro tier or template pack?
No. There is currently no paid product or premium feature tier on this site.
Does AMAADOR store my inputs or documents?
No. The calculator logic and document generation run inside your browser. Your entered operating data is not uploaded to an AMAADOR database.
Does a donation change what I can access?
No. A donation is an optional one-time way to support the project; it does not unlock features because the complete product is already available.