MuscleBox delivers curated fitness and nutrition boxes on a recurring subscription. The engineering problem is the subscription lifecycle: plans that customers change, pause, and tailor to their goals, with billing that has to stay correct through all of it.
MuscleBox has delivered 1M+ boxes globally on WooCommerce Subscriptions, across tiers from $29 to $79 a month.
What I built
- Subscription plan creation and management on WooCommerce Subscriptions, with customisation against a customer’s stated fitness goals.
- Product curation for each box, tied to the subscription tier.
- Engagement features including workout challenges and nutrition content.
- Reporting on subscription trends and product performance to inform what goes in the next box.
- Multi-tier subscription pricing and custom box configuration across hundreds of product options.
- Subscription lifecycle management — signup, changes, pauses, and cancellations.
- A custom reconciliation plugin that resolved high-volume ID mapping failures the platform hit at scale.