
Armbrella
United Kingdom
Armbrella is a mobile-first fitness & wellness platform where everyday users discover certified coaches, subscribe to tiered workout/nutrition plans, track daily progress (steps, water, calories, weight), join challenges, and share short videos in a safe, moderated feed while coaches run their business end-to-end with client plans, sessions, messaging, and a revenue dashboard. A single web admin reviews coach credentials, moderates content, manages subscriptions and reports, and oversees transparent payouts. Payments are simple: users buy plans via App Store/Play; coaches are paid monthly via Stripe Connect with clear ledgers.
Timeline 6 Months
Services
Prototype Design
Market Research
Frontend Development
Backend Development
QA Testing
Platform Deployment
Did You Know?
Users who track fitness metrics daily and participate in community challenges are 65% more likely to stay consistent with their wellness goals—Armbrella unifies tracking, challenges, and social motivation in one experience.
Did You Know?
Users who track fitness metrics daily and participate in community challenges are 65% more likely to stay consistent with their wellness goals—Armbrella unifies tracking, challenges, and social motivation in one experience.
Figma
React-Native
Next.js
Nest.js
MongoDB

Problem Statement
Building Armbrella meant combining fitness tracking, social content, and coaching monetization—each with unique technical risks. Finding a free, compliant music API suitable for workouts was non-trivial. Moderating a social feed at scale required AI-based safeguards to prevent unsafe content. AI calculators had to be accurate and interpretable, not just technically correct. Synchronizing multiple daily metrics (steps, calories, weight, water) into real-time graphs added further complexity.
Solutions
We evaluated and integrated compliant audio sources suitable for fitness use cases. An AI-powered moderation layer was introduced to flag and manage unsafe content automatically. Wellness calculators were tested against edge cases to ensure realistic outputs. We built a robust aggregation layer to sync fitness data in real time, ensuring dashboards and graphs always reflected accurate user progress—making Armbrella reliable for both users and coaches.
Technical Architecture
A comprehensive fitness ecosystem where users achieve wellness goals while coaches build sustainable businesses. React Native mobile apps connect to Nest.js backend with MongoDB database. Next.js admin panel manages content moderation, subscriptions, and coach payouts. App Store/Play Store IAP handles user subscriptions, while Revenue Cat Connect processes monthly coach payments with fitness tracking, social feed, challenges, and workout program features.
Tech Stack
Figma
React-Native
Next.js
Nest.js
MongoDB
The process
The process
Having the design, within a few months our development team built the product that was ready for the client's review. Since then worked on retainer basis for maintenance, QA & testing.
KPIs
41%
User Engagement Lift
Armbrella improved user consistency by 41% by combining daily fitness tracking, community challenges, and coach-led programs within a single mobile wellness ecosystem.
KPIs
Armbrella improved user consistency by 41% by combining daily fitness tracking, community challenges, and coach-led programs within a single mobile wellness ecosystem.
41%
User Engagement Lift
54%
of traffic are active users
54%
of traffic are active users
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