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NULLONESOLUTIONS

Mobile & Web App · 2024

Sync

A cross-platform team scheduling app with offline-first sync across iOS, Android and the web.

Client
Workplace collaboration startup
Year
2024
Stack
React Native, Next.js, Realtime, Offline-first
Sync scheduling app shown on a phone and a laptop

01Challenge

The challenge

Shift-based teams needed a schedule they could trust on site, often with poor connectivity. Existing tools lost changes when phones went offline and created double bookings.

02Solution

Our solution

We built a shared TypeScript domain layer used by a React Native app and a Next.js admin panel, with a conflict-free sync engine so edits made offline merge cleanly when devices reconnect.

03Results

Results

Idea to three platforms
14 wks
Sync success rate
99.9%
Scheduling conflicts
−70%

The story

Shift-based teams live on their schedules — and they often check them in basements, warehouses and building sites with no signal. Sync needed to be trustworthy offline first, and pretty second.

Architecture

  • Shared domain layer. One TypeScript package defines schedules, shifts and rules, used by both the React Native app and the Next.js admin panel.
  • Conflict-free sync. Edits made offline are merged deterministically when devices reconnect — no lost changes, no double bookings.
  • Weekly builds. TestFlight and Play internal builds every Friday, so the client could test in the field from week two.

The result

Sync went from idea to iOS, Android and web in fourteen weeks, with a 99.9% sync success rate and a 70% drop in scheduling conflicts for pilot teams.

Learn more about our mobile app development and full stack web services.

04Gallery

Sync weekly schedule view on mobile
Sync web admin panel for managers

Let's talk

Let's turn your idea into real software.

Book a free consultation. We'll listen, ask the right questions and send back a clear plan — no strings attached.