Fitness and wearables software people keep using
Wearable data dashboards, membership and class booking, personal trainer platforms, AI nutrition tracking and corporate challenges. Built for daily use, with health data handled carefully.
What fitness and wearables software has to get right
Fitness software lives or dies on daily habits. If logging is slow, booking is clunky or the data from three devices does not agree, people stop opening the app.
It also handles health data more often than it seems: heart rate, weight, injuries and health screening answers. The builds below keep that data private, keep claims on the wellness side, and add safety checks where advice could cause harm.
Problems we are asked to fix
The problems teams bring to us, the system that fixes each one and the builds that did it.
Wearable data dashboard
Wearable data from different devices is hard to combine.
Data from several devices normalised into one view for athletes and coaches, with clear labels on what each number means.
Membership and class booking
Class booking and memberships run on clunky software.
Memberships, class booking and QR check-in for a gym chain, with recurring payments built in.
Personal trainer platform
Personal trainers manage clients over messages.
Programmes, check-ins and payments in one app, with health screening before a client starts.
AI nutrition tracker
Food logging is tedious so users quit.
Photo-first logging with AI estimates the user can correct, and safety rules for people at risk.
Corporate fitness challenges
Companies want fitness challenges that people join.
Team challenges with private leaderboards and fair scoring across different devices and activities.
5 kinds of fitness and wearables system we have built
Each one links the product build behind it, counted from our case studies.
Fitness and wearables products we built

Latu - Wearable Data Dashboard for Endurance Athletes and Coaches
Designed and built a clickable athlete app for a Finnish sports-tech company that joins heart rate, HRV, sleep and training load from several wearables: a daily readiness score that explains itself, training load and fatigue charts, every workout in one list with duplicates merged, and sleep trends against the athlete's own normal range.

Tessera - Membership, Class Booking and QR Check-In for a Gym Chain
Designed and built a clickable staff console for a chain of 18 boutique gyms and studios in Italy: a studio dashboard with today's classes by room, a check-in desk that checks membership, payment and medical certificate before letting anyone in, member profiles and session rolls with waitlists, late cancels and no-shows.

Setwise - Coaching Platform for Personal Trainers with Built-In Health Screening
Designed and built a clickable trainer web app for a US coaching platform: a dashboard of who needs attention today, a client roster with adherence trends, a client record with PAR-Q+ screening and programming holds, a check-ins inbox against a 48 hour response target, and Stripe payments - keeping the product on the coaching side of the line with medical care.

Quandong - Photo-First AI Nutrition Tracker with Safety Built In
Designed and built a clickable photo-first food diary for a Brisbane consumer health company: snap a meal, the AI finds each food and shows how sure it is, fix anything in two taps, and see kilojoules, macros, fibre and key micros against Australian reference values, with guidance tied to the Australian Dietary Guidelines.

Sztafeta - Corporate Fitness Challenges with Private Leaderboards and Fair Scoring
Designed and built a clickable employee app for a Polish employee-benefits company's step and activity challenges: team and solo challenges where every activity converts to points, leaderboards where each person chooses how they appear, prizes with payroll tax notes, charity goals and a fair-play check before anything is won - while the employer only ever sees aggregates.
The rules involved
The rules this kind of software usually has to follow. Guidance, not legal advice.
- 01
Health and personal data
The GDPR in the EU, state health data laws and the FTC Health Breach Notification Rule in the US, and similar laws elsewhere.
- 02
The medical device line
Fitness features stay outside medical device rules only while their claims stay on wellness. Diagnosis or treatment claims can move them inside.
- 03
Subscriptions and consumer law
Auto-renewal, cancellation and consumer rights rules apply to memberships and in-app subscriptions.
- 04
Payments
Card and direct debit rules, including strong customer authentication in Europe and PCI DSS scope for card data.
Framework guides
Rules our fitness and wearables builds cite most
- GDPR3
- WCAG 2.1 AA3
- European Accessibility Act2
- Australian Consumer Law1
- Australian Dietary Guidelines1
- CCPA/CPRA1
- Civil Code arts. 1341-13421
- Codice del Consumo1
- Codice Privacy1
Two ways to work with OceanLab
Project build
We design and build the system as one project. It starts with a clickable prototype your team tries before any production code is written. Pay per milestone (outcome-based) or hourly at $30-50/hr, depending on role and seniority.
Embedded engineers
Our engineers join your team on a flexible monthly retainer. Part-time is fine and it runs month to month, with hours that overlap the US, UK and Europe, the Middle East, and Australia and Asia. Outcome-based or $30-50/hr.
Guides and tools
Fitness and wearables software questions
Which wearables can you integrate?
We work with the device makers' APIs and the phone health platforms, and normalise the data into one model. Which ones fit depends on your users and the data each API allows.
Does health data in a fitness app need special care?
Yes. Heart rate, weight and health screening answers are health data under many privacy laws. We keep it out of analytics and marketing tools unless users agree, and encrypt it everywhere.
Can AI give fitness or nutrition advice?
It can estimate and suggest, with the user able to correct it. We add safety rules for risky situations and keep claims on the wellness side.