Kilo

About Kilo

Kilo is an agentic fitness coach that operates through iMessage. It builds a training program, texts you your workouts, and uses your logged data and check-ins to recommend what comes next. The tool is currently in a free private beta, with the maker onboarding lifters in small groups.

Review

Kilo takes a conversational approach to fitness coaching by meeting users where they already text. The tool constructs a program, sends workouts via iMessage, and adjusts recommendations based on training history and check-in responses. It's built for people who want coaching without opening a separate app, though the beta status means the feature set is still taking shape.

Key Features

• Builds a training program and texts daily workouts through iMessage
• Logs completed workouts and uses that history to suggest adjustments
• Responds to check-ins about schedule changes or recovery, then modifies the plan accordingly
• Handles sign-up and authentication via Clerk, so account setup doesn't require custom infrastructure
• Runs on Convex for backend data, keeping coaching conversations and training history connected

Pricing and Value

Kilo is free during the private beta period. Pricing for a full release has not been announced, and the maker hasn't published details about future plans or tiers. Anyone trying the tool now won't encounter a paywall, but long-term cost is undefined.

Pros

• Coaching happens inside iMessage, which removes the need to switch between apps
• Program adjustments factor in actual training logs and self-reported recovery, not just a static template
• Onboarding happens in small groups, so early users get direct attention from the maker
• Backend infrastructure uses established tools like Convex and Clerk rather than untested custom systems
• Conversational format lets users explain context-like a missed session or low energy-in plain language

Cons

• The tool is in private beta, so the full scope of coaching logic and exercise variety isn't publicly documented yet
• iMessage-only delivery means Android users and people who prefer other messaging platforms can't use it
• Kilo isn't well suited for athletes who need sport-specific programming or in-person coaching cues

Kilo fits lifters who want a text-based coach that adapts to their logs and daily check-ins without leaving iMessage. It's less practical for anyone outside the Apple ecosystem or those whose training demands specialized programming beyond general strength and hypertrophy work. The beta rollout is gradual, so interested users should expect a wait before getting access.