Lactate Express vs DocumentDiary

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.

DocumentDiary — Train. Document. Improve. The modern training journal for athletes, coaches, and clubs. Plan, document, and analyze every workout in one beautifully designed app — with seamless Garmin and Apple Health sync, real-time coach-athlete collaboration, and a powerful AI Assistant that turns your data into insights. Whether you're chasing a personal best, coaching a team, or running a club, DocumentDiary keeps everything in one place. Built natively for iPhone and iPad with the latest in Apple design. — FOR ATHLETES — Document workouts in seconds — manual entry, voice dictation, or one-tap copy from your coach's plan Personalize your monthly view with custom training types and colors See where you trained on the integrated map view Track distance, training load, elevation, and personal bests Share workouts and synced activities through the iOS share sheet Stay on top of everything with smart push notifications — FOR COACHES — Build detailed training plans and assign them instantly Manage your full athlete roster with sortable, organized views Switch between athletes in a tap and see everything they see Edit each athlete's training colors directly in the monthly view Plan faster with voice dictation and an expanded training type library Get a unified overview of all athletes in one place — GARMIN & APPLE HEALTH SYNC — Connect Garmin Connect and Apple Health to automatically import workouts, distance, training load, elevation, and health data — no manual entry required. — DOCUMENTDIARY AI ASSISTANT — Ask questions across everything you've logged — your workouts, your synced activities, your health data — and get personalized insights, summaries, and answers in seconds. — BUILT FOR APPLE — Native SwiftUI design for iPhone and iPad Sign in with Apple Push notifications for plans, feedback, and important updates Home Screen widgets for sport stats, personal bests, weekly schedule, and more Full English and German language support — PRIVACY & SECURITY — DocumentDiary is fully GDPR-compliant. All personal data is stored and processed on servers in Germany. Data is transmitted with TLS 1.3 encryption. We do not use third-party trackers. — SUBSCRIPTION — DocumentDiary offers auto-renewing subscriptions: DocumentDiary Premium — €6.99 per month DocumentDiary 6-Month Plan — €24.99 (€4.17 / month) A subscription unlocks all premium features, including the AI Assistant, Garmin and Apple Health sync, advanced analytics, training planning tools, custom widgets, and unlimited training documentation. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the same price. You can manage and cancel your subscription anytime by going to your Account Settings on the App Store after purchase. — SUPPORT — We're here to help: In-app support Email: rudorferjulius@documentdiary.com Help & documentation: www.documentdiary.de — LEGAL — Privacy Policy: https://www.documentdiary.de/datenschutz.html Terms of Use (EULA): https://www.documentdiary.de/agb.html DocumentDiary — Document smarter. Train better.