PaceCraft — Adaptive Running Coach

Product Concept

Problem: 65% of people who start a running habit quit within first 6 weeks. Not because running is hard — because they start too fast, get injured or exhausted, and conclude running "isn't for them." Couch-to-5K programs assume a starting point and progress in rigid weekly increments. The sedentary person gets crushed by Week 3. Solution: PaceCraft starts with a 5-question assessment and builds a 12-week plan that starts laughably easy (walk 10 minutes, 2x/week) and builds incrementally. The AI adjusts the plan weekly based on self-reported fatigue, weather, and schedule compliance. Miss a week → it rebuilds, doesn't punish. Core value prop: "Run for the rest of your life. Start with 10 minutes."

Target Customer

Primary: "The Comeback Kid" — Adults 28–48 who used to be active, let it slip in their 30s, recently had a trigger moment. They want to run. They've tried before and quit. Pain point: Over-estimate starting fitness. Feel embarrassed. Quit when plan feels harder than it should. Need someone to tell them to slow down. Secondary: "The Gym-Curious" — People who've never run but want to add cardio. 22–35. Consistent at gym, avoid running outside. Need a plan that tells them exactly what to do, no decision required. Market: ~35M Americans who describe themselves as "not runners but want to be." Global running app market: $2.1B (2024) → $5.8B by 2032 (12.8% CAGR). Gen Z and Millennial women fastest-growing segment.

Feature Plan

Brand Direction

Encouraging without being soft. Real coaching: "Slow down. This week is supposed to be easy. The hard weeks come later." No generic "you can do it!" motivation.

Landing Page Copy

• Starts easier than you think (Week 1 is walking — intentional)
• Adjusts when you miss (rebuilds, doesn't punish)
• Audio coaching, not playlists (real coaching cues, form tips, pace calls)

App Store Copy

You've tried running before. It was hard, you quit, you told yourself you're not a runner. PaceCraft disagrees. Most running apps start you too fast and quit you when you miss a session. PaceCraft starts at 10 minutes of walking and builds from there — adjusting your plan every week based on how you actually feel.

Pricing Strategy

Freemium

Free gets users through Week 2 and proves the coaching style. Paywall arrives exactly when they're committed and want the full journey.

Paywall Plan

Free tier gets user to Week 2 and proves the coaching style works. Paywall arrives exactly when they're starting to see value and want the full journey.

Marketing Content

• TikTok: POV style "Day 1: 10 minutes walking." "Day 28: I just ran 20 minutes."
• Reddit (r/running, r/C25K)
• Instagram Reels (transformation arcs)
• Google SEO: "couch to 5K app," "beginner running plan," "running for non-runners"

Developer Prompt

Stack: React Native (Expo) — iOS & Android · Node.js/Express backend · PostgreSQL (Neon) · HealthKit/Google Fit integration

Key Screens: Onboarding (5-question assessment → personalized start plan) · Home (this week's 3 sessions, today's run with audio player, progress arc) · Workout Player (full-screen during run, large timer, TTS coaching cues, background play, one tap to pause/end) · Check-In (simple 4-option weekly survey, AI adjusts plan) · Plan View (12-week calendar, past grayed, current highlighted, future shown but locked)

Constraints: Audio coaching uses TTS (no recorded audio at MVP — warm, not robotic voice) · GPS tracking for virtual 5K must work in background mode (iOS background location permission prompt at onboarding) · No leaderboards or competitive rankings · Plan adjustment algorithm must be transparent — users see "Why did my plan change?" tooltip

Launch Checklist