FishBox Packing Calculator
The challenge
In fish packing plants, calculating tare and net weight per box is done many times a day, under time pressure, often with a wet calculator and a notebook. Errors propagate to invoices and inventory, and each operator does the math slightly differently.
The solution
FishBox is a mobile app built with .NET MAUI that standardizes the calculation: the operator enters gross weights and the app computes tare and net fish weight automatically, distributes weight across boxes, and keeps a local history (SQLite) that works with no connectivity — normal conditions on a plant floor. A built-in conventional calculator means the phone replaces every device the operator used before.
Results
- Automated tare and net weight calculation
- Per-box weight distribution
- Works fully offline — built with .NET MAUI for iOS and Android
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