EngTools is a practical engineering calculator app for everyday work.
Includes fast calculators and converters for:
• Unit conversion
• Mechanical engineering (stress, beam deflection, torsion)
• Electronics (Ohm’s law, voltage drop, wire size)
• Workshop tools (drill & tap, bolt torque, machining)
• Aerospace (Mach number, orbital velocity, rocket equation)
Designed for engineers, students, technicians and makers.
ENGTOOLS PRO (one-time purchase)
Unlock advanced calculators:
material weight, geometry, spring rate, machining feeds & speeds,
threads & tolerances, battery runtime and more.
Light & dark mode.
Multi-language support.
Thank you for your support!
Latest Version
1.0.7Uploaded by
Siti Nurlela
Requires Android
Android 7.0+
Category
Free Tools AppContent Rating
Everyone
Security Report
Check Now
Report
Flag as inappropriateLast updated on May 29, 2026
Added full app functionality with 8 Aerospace categories, 5 tools each, a cleaner design, bug fixes, performance improvements, and Android 15 edge-to-edge support.