Inertium

Your Daily Habit Log

The zero-bullshit habit tracker.
No ads. No freemiums. Privacy-first.

Simple and minimalistic at it's core.
Does one thing and does it well.

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✨ NEW

AI-Powered Coaching

Self-host your AI fitness coach using Inertium MCP

Inertium MCP server is open-source and meant to be run locally. It allows you to connect your Inertium App account to Claude Desktop via MCP and quickly build an AI fitness coach that actually understands your history.

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Weekly check-ins that pull your real data automatically
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Progress analysis against personalized projections
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Pattern detection across weeks of entries
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Recommendations grounded in what you actually did
View Setup Guide →
AI Fitness Coach (Example Claude Desktop Session)

📊 Week 4 Summary — Dec 13, 2025

Weight: 87.0 kg (target: 87.4 kg) → 0.4kg ahead

Rate: 0.93 kg/week ⚠️ slightly fast

Lifts vs Projection:

Squat 120 kg ✓ +10kg
Bench 87.5 kg ✓ +5kg

Recommendations:

Increase protein intake to 1.8g/kg/day

No manual data entry.

All data is pulled from Inertium into Claude Desktop client automatically.

Need help building AI-powered products?

Hire the man who built Inertium.

Master's degree in engineering from a top UK university. Writing software professionally since the early 2010s. I consult at staff/principal level. My clients are usually enterprises and mature (Series A+) startups in EU/UK. Reach out if you're looking for help building your next SaaS or AI-powered product.

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My personal and company sites, to get in touch:
www.narvidas.com
www.monadengineering.com
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