Toptal equips construction tech firm with app built for low-connectivity areas.
A leading construction technology company partnered with Toptal to improve its mobile auditing app, which needed to function reliably in remote job sites with limited or no internet access.
Client
A UK-based construction technology company providing mobile auditing tools for field teams.
Industry
TechnologyDelivered Services
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The existing mobile app required a constant internet connection, making it difficult for users to log issues in the field and causing delays and incomplete reports.
Solution
Offline-first Architecture
Toptal redesigned the app’s architecture to support full offline functionality, enabling users to record snags, capture photos, and store data locally using Flutter and SQLite, with automatic queuing for API calls and intelligent sync once connectivity resumed.
Robust Sync System
To maintain data integrity, Toptal implemented a custom sync manager with conflict resolution logic, smart retry scheduling, and background sync capabilities.
Outcome
Improved Field Performance
The app now allows uninterrupted use on job sites with limited or no internet, eliminating delays and boosting user adoption by removing one of the largest pain points in the field.
Business Expansion Potential
The stability of the offline-first solution enabled the client to confidently expand into remote and international markets, reduced support requests, and improved sales demos by addressing a critical buyer objection.
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