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AI-Powered

Intelligent Training OS for Endurance Athletes

Your training
finally has
a brain.

Most athletes track workouts. Few truly understand what their training is doing to them. Lactate Training connects your sessions, recovery, fatigue and real life — into one AI-driven coaching platform.

Start free — iOS & Android See how it works

🍎

Download on the App Store

▶

Get it on Google Play

10,000+ athletes training smarter · 4.9 ★ rating

Readiness Score

8.6

✦ Optimal — Go Hard

🏃

Today's Workout

Threshold Intervals

6 × 4 min · Zone 4 · 50 min

Check-In Streak 🔥

days consistent

LT.ai

🔔

Good morning, Marcus 👋

Training Readiness

8.6

✦ Optimal

86%

Today's Focus

Build Fitness

You're balanced and ready to push.

🏃

Recommended

Threshold Intervals

6 × 4 min · Zone 4 · 50 min

Daily Check-In

Physical

Mental

🏠Today

📈Trends

⚡Workouts

👤Profile

Works with

⚡ Strava

⌚ Garmin

🍎 Apple Health

🔥 Wahoo

💪 Polar

📡 Suunto

🏃 Coros

10K+

Active Athletes

4.9★

App Store Rating

73%

Reduction in Overtraining

2min

Daily Check-In Time

The problem

Most athletes track. Few truly understand.

You put in the work. You log every session. But you're still stuck — tired, plateaued, or picking up injuries you can't shake. The missing piece isn't more data. It's intelligence.

Lactate Training isn't just another workout log. It's a complete operating system for your training.

"Train smarter. Avoid injury. Improve consistently."

😤

Overtraining without knowing it

Your body is sending signals. Without intelligent analysis, you miss them — until it's too late and you're injured or burned out.

😴

Inconsistency ruining your progress

Life happens. Training breaks happen. Generic plans don't adapt — leaving you lost on how to get back on track after a missed week.

🤔

Blind training in the wrong zones

Without zone data, most athletes spend too much time in the grey zone — too hard to recover, too easy to improve.

Everything you need

One complete operating system for your training

Eight intelligent tools that work together — so every decision about your training is backed by data, not guesswork.

🤖

AI Session Analysis

Your AI coach analyses every session, daily check-in and training load to give personalised insights after every workout.

AI-Powered · Post-Workout

✓
Instant AI session breakdown
✓
Detect fatigue before injury happens
✓
Compare similar workouts over time
✓
Clear suggestions for your next session

📊

Fitness vs Fatigue Dashboard

See the full picture in one place. Track fitness build vs fatigue, intensity distribution, and trends.

Real-Time · Adaptive

✅

Daily Check-Ins

A simple 2-minute habit that prevents injury. Log physical and mental state, detect early fatigue, and build consistency with streaks.

Injury Prevention

Physical

7.8

Mental

6.2

Energy

8.5

📅

Smart Calendar

Plan training around real life. Add work, travel and life events. Adapt when things change.

Life-Aware Planning

⚡

Strava Segment Hunter

Know exactly when your peak fitness window opens. Strike on Strava segments when you're primed for a PR.

Strava Sync · PRs

🔬

Session Comparison & Progress Tracking

Tag key sessions and compare them with AI. See real improvements in pace vs heart rate, power, efficiency, cadence, and more.

AI Comparison

✓
Pace vs heart rate trends
✓
Power and efficiency gains
✓
Fatigue vs performance correlation

🩸

Blood Lactate & True Training Zones

Connect lactate testing to unlock accurate heart rate zones and true threshold data. Train like the pros.

Precision Physiology

Z1 Recovery

Z2 Aerobic Base

Z3 Tempo

Z4 Threshold

Z5 VO₂ Max

Simple by design

From first launch to peak performance

LT learns your body and keeps refining as you improve. Four steps — then it just works.

📋

Build Your Profile

Answer a quick performance questionnaire about your sport, goals, fitness level, and lifestyle.

🔗

Connect Your Data

Sync Strava, Garmin, or Apple Health in seconds. LT instantly imports your full training history.

☀️

Daily Guidance

Each morning: a readiness score, today's focus, and a recommended workout — all personalised to how you feel right now.

📈

Track & Improve

Review post-session AI analysis, watch your fitness curve rise, and see your zone balance improve week over week.

Real athletes

What athletes are saying

⭐⭐⭐⭐⭐

I've been running for 6 years and always struggled with overtraining. LT finally gave me the structure to improve without constant injury. The readiness score alone changed how I train.

Marcus K.

Marathon Runner · 3:18 PB

⭐⭐⭐⭐⭐

The AI session analysis is what got me hooked. After every run it tells me exactly what I built and what to do next. It's like having a coach in my pocket 24/7.

Sarah L.

Triathlete · 70.3 Finisher

⭐⭐⭐⭐⭐

Segment Hunter is addictive. I used the peak fitness window to plan my best Strava week ever — 4 KOMs in one ride. Genuinely worth it for that feature alone.

James P.

Cyclist · Strava Addict

⭐⭐⭐⭐⭐

As a busy parent training for ultras, this app just gets real life. Missed a session? It adjusts. No guilt, no broken plan. Just keeps you moving forward.

Anna R.

Ultra Runner · 50K Finisher

⭐⭐⭐⭐⭐

The zone distribution graphs showed me exactly why I was always tired — everything in Zone 3. Fixed it in 4 weeks. My aerobic base is completely transformed.

Daniel M.

Duathlete · Zwift Racer

Simple pricing

Choose your plan

Start free. Upgrade when you're ready. Cancel anytime — no contracts.

Monthly

YearlySave More

Free

£ 0 /month

Everything you need to experience the core training intelligence — completely free.

✓Daily Readiness Score
✓Training Dashboard
✓Strava Sync (read-only)
✓Basic Zone Analysis
✓Daily Check-ins
—AI Session Analysis
—Segment Hunter
—Blood Lactate Zones

Get started free

Frequently asked questions

Can't find what you need? We're always happy to help.

Have a specific question about training methodology, lactate zones, or how the AI coach works?

Chat with us →

LT works best for endurance sports — running, cycling, triathlon, swimming, and rowing. The zone-based AI training principles apply across all of these, and we're continuously adding sport-specific guidance.

Lactate Training syncs with Strava, Garmin Connect, Apple Health, Wahoo, Polar, Suunto and Coros. More integrations are added regularly. If your device uploads to Strava, LT can read it immediately.

No — blood lactate testing is an optional premium feature. LT works excellently with heart rate, pace-based, and power-based zones from day one. Lactate testing just gives you even more precision.

Garmin and Strava record your activities. Lactate Training interprets them, plans around them, and tells you what to do next. It's the intelligence layer that sits on top of your existing tracking tools.

You get full Pro access for 14 days — no credit card required. At the end of the trial you choose to subscribe or stay on the free plan. Zero pressure, no hidden commitments.

Yes. Cancel through the app or your App Store / Google Play subscription settings at any time. No cancellation fees, no complicated process — your data is always yours.

Absolutely — beginners benefit most. You'll learn to train in the right zones from day one, build a solid aerobic base, and avoid the injury cycles that derail most new athletes.

Free 14-day trial · No credit card required