The problem
The coaches I watched were excellent at what they did. But clients were churning not because of bad programming — because of operational chaos. Follow-ups forgotten in DMs. Renewals missed because the spreadsheet wasn't updated. Promising leads gone cold because life got in the way.
The tools that existed were either too complex (built for sales teams) or too simple (a spreadsheet with a logo). Nothing was made for the specific way fitness coaches actually work.
The product
Senarx is a mobile CRM for independent fitness coaches. Track every client, see who is at risk before they churn, and manage your leads without juggling five apps.
Available on iOS and Android. Free to start, no credit card required.
Built in 2026 by a single developer who spent too many hours watching coaches lose clients to avoidable chaos.
The founder
Johan Cristiani — independent builder and the person answering contact@senarx.app.
Former B2B sales consultant, now building the tools I wish coaches had.
Senarx is a solo project, built from scratch. Every feature exists because a coach needed it.