Vinicius Siqueira de Liz
Founder at OutArena — Sports management SaaS for padel & beach tennis instructors
Founder at OutArena — Sports management SaaS for padel & beach tennis instructors
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Hey StartupBase! 👋 I built Professor OutArena after seeing padel and beach tennis instructors in Brazil managing students through WhatsApp and spreadsheets. OutArena automates billing, tracks class packages, and sends WhatsApp reminders automatically — so instructors focus on teaching, not admin work. 7-day free trial, no credit card required. Would love your feedback!