Lactate Express

Capture lactate & heart rate per step, compute thresholds (Mader, Dickhuth, dMax) and training zones — pro-grade on iPad, Mac, and iPhone.

Lactate Express brings the lactate step-test to iPad, Mac, and iPhone — built for performance diagnosticians and serious endurance athletes.

Capture every step-test precisely, compute thresholds with scientifically recognized models, and turn them into training zones you can actually apply. No more error-prone spreadsheets and manual entry.

CAPTURE — fast and error-free • Step-test one step at a time: load (watts or km/h), lactate, heart rate, and Borg per step • Automatic readings over Bluetooth: SensCore lactate meters and Polar heart-rate sensors • Clear phases: rest, examination, recovery — with the current step clearly marked • Large input fields and one-tap entry, even under time pressure during a test

ANALYZE — scientifically grounded • Six threshold models: Mader (4.0 mmol/l), Dickhuth, LT1, dMax, dMaxMod, and user-defined fixed values • Automatic curve fitting with coefficients and R² — the math stays transparent • Training zones such as GA1, GA2, and EB at a glance • Publication-grade charts

REPORT — professional • Branded PDF reports with header and footer, charts, tables, and zones • Share via the native iOS and macOS share sheet

COMPARE & TRACK — over time • Compare Tests: put any two step-tests side by side (Mac and iPad) to see exactly what changed • Home dashboard with threshold trends and deltas — an athlete's form at a glance • Roster overview to manage many athletes from one place (Team/Pro) • Cohort percentiles: see where an athlete ranks within the group

WHO IT'S FOR • Diagnosticians: fast capture, athlete management, professional reports • Athletes: clear zones instead of jargon, an honest performance snapshot

PLATFORMS Native SwiftUI — optimized for iPad and Mac, compact on iPhone.

SUBSCRIPTIONS Lactate Express offers auto-renewable subscriptions with monthly and yearly terms. The subscription title, duration and price are shown in the app before purchase. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your Apple Account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase.

Privacy Policy: https://www.lactate-express.de/lactate-express-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Lactate Express — train smarter, not harder.