Ergonizer is established Windows software for exercise testing. LactateThreshold runs in the browser and compares six threshold methods.
Try LactateThreshold for freeErgonizer was developed in a university setting in Freiburg and targets sports physicians, sports scientists, coaches and testing institutions. LactateThreshold is a browser app for athletes, coaches and labs. This page sticks to what the vendor pages say and where the tools differ.
Ergonizer is installed software for Windows. For the lactate threshold, the vendor page describes the Wasserman lactate threshold (LT) and the individual anaerobic threshold as a rise above baseline, for example +1.5 mmol/l. It adds configurable training zones, performance prediction, percentiles, a Critical Power module, printed reports and export to Excel, SPSS and SAS JMP, for bike, treadmill, rowing and other ergometers. The full version costs EUR 599 (EUR 899 with all modules), the non-commercial version EUR 299; the trial runs 30 days with one test subject.
LactateThreshold runs in the browser on computer, tablet and phone without installation. Enter power or pace, lactate and optional heart rate and see LT1 and LT2 from six published methods side by side, plus training zones, race pacing and VLamax from a sprint test. The basic version is free for good; paid plans cost EUR 19.99 to 79.99 per year.
| Feature | Ergonizer | LactateThreshold |
|---|---|---|
| Runs in the browser without installation | ||
| Operating system | Windows | any device with a browser |
| Threshold methods | LT (Wasserman), IAT above baseline | 6: Log-Poly-ModDmax, Mod. Dmax, Dmax, Dickhuth, Delta, Mader |
| Adjustable training zones | ||
| Critical Power | module, EUR 349 | |
| VLamax from sprint test | not listed | |
| Race pacing | performance prediction | |
| Data export | Excel, SPSS, SAS JMP | CSV, JSON, PDF |
| Price | EUR 299â899 one-off | EUR 0 or 19.99â79.99 per year |
| Free to try | 30 days, 1 subject | basic version, no time limit |
Ergonizer fits labs and sports physicians who want local Windows software with statistics export and Critical Power and prefer to pay once. LactateThreshold fits when you want to analyze on any device without installation, compare several threshold methods directly and start for free.
According to the vendor shop, the full version costs EUR 599, EUR 899 with all modules, and the non-commercial version EUR 299 (October 2026, plus VAT for EU customers). Updates are included for one year from purchase. LactateThreshold has a free basic version; paid plans cost EUR 19.99 to 79.99 per year.
The vendor lists Windows as a requirement and does not mention a Mac or web version. LactateThreshold runs in the browser, so it also works on Mac, iPad and phone.
Ergonizer describes the Wasserman lactate threshold and the individual anaerobic threshold as a rise above baseline. LactateThreshold calculates six methods in parallel: Log-Poly-ModDmax, Modified Dmax, Dmax, Dickhuth, Delta and Mader.
From ergonizer.de (home, system requirements, anaerobic threshold page, special functions and shop), retrieved in October 2026.
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