
kaizen
Run training that adapts based on the running you do

AI first coaching app for hybrid athletes
Most fitness apps are built for weight loss. OnlyGains is an operating system for high-performance athletes managing the complex ecosystem of training, nutrition, and recovery required for intense events like HYROX and Ironman.
OnlyGains.ai made its debut on March 12, 2026 — 3 months ago. OnlyGains.ai is positioned within the Activity tracking and Sports apps sectors. Considered a startup in its early growth phase, it has gathered 14 votes and 5 comments from the community.
Browse all startups in Activity tracking, Sports apps.
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