SAPRA WeldCalc is a professional-grade welding calculation application designed for engineers, welders, inspectors, and quality control professionals working in the fabrication, construction, and petrochemical industries. The app provides fast, accurate, and reliable calculations for a wide range of welding parameters — all from the convenience of your Android device.

Whether you are on the shop floor, at a construction site, or in a remote field location without internet access, SAPRA WeldCalc ensures your critical welding computations are always at your fingertips. The built-in offline calculation engine means you never have to depend on a network connection to get your work done.

Key Features

📐 Comprehensive Welding Calculations

• Weld joint design and parameter computation
  
• Heat input, voltage, current, and travel speed calculations
  
• Fillet weld and groove weld sizing
  
• Electrode and filler metal consumption estimation
  
• Preheat and interpass temperature determination
  
• Weld metal volume and weight calculations
  

📱 Works Completely Offline

• Integrated offline calculation engine — no internet required
  
• All computations are performed locally on your device
  
• Ideal for remote job sites, workshops, and field inspections
  

📄 PDF & Excel Export

• Generate professional PDF calculation reports with one tap
  
• Export data to Excel spreadsheets for further analysis and record-keeping
  
• Files are saved directly to your device's Download folder
  
• Automatically opens the exported file after saving for instant review
  

🎯 Simple & Intuitive Interface

• Clean, mobile-optimized design for easy one-handed use
  
• Organized tabs for quick navigation between calculation modules
  
• Large, readable fonts and touch-friendly controls
  
• Instant results — no waiting for server responses
  

🔒 Privacy & Data Security

• No data is sent to any external server
  
• All calculations and personal data stay on your device
  
• No account registration or login required
  
• No ads, no tracking, no unnecessary permissions
  

Who Is This App For?

• Welding Engineers — quickly verify parameters and design weld joints
  
• Welding Inspectors — perform on-site calculations and generate reports during inspections
  
• QA/QC Personnel — document and validate welding procedures with accurate data
  
• Fabrication Shop Supervisors — estimate consumable requirements and plan welding operations
  
• Engineering Students — learn and practice welding calculation methodologies
  
• Construction Project Managers — review and approve welding parameters in the field
  

Supported Standards & Methodologies

The app incorporates calculation methods aligned with internationally recognized welding standards and best practices, providing results that are consistent with industry expectations for quality and accuracy.

About the Developer

SAPRA WeldCalc is developed and maintained by Amin Naseri Karimvand, a professional with hands-on experience in welding engineering and quality control in the oil, gas, and petrochemical sectors. The app is built to address real-world challenges faced by welding professionals every day.

• Email: akarimvand@gmail.com
  
• Phone: +98 990 058 7168
  

Version Release Notes — v4.3

• Added full offline calculation engine — the app now works without any internet connection
  
• Implemented native file saving directly to the device Download folder
  
• Added automatic file opening after PDF/Excel export for instant review
  
• Improved mobile UI with optimized fonts and touch-friendly controls
  
• Fixed bottom navigation bar display issues on various screen sizes
  
• Enhanced app branding and header display
  
• Built as a fully native Android application with improved stability and performance
  
• Signed release build ready for marketplace distribution