Apps Like Castella for iPhone and iPad
Ranked alternatives
Showing 361–380 of 1,000 ranked alternatives.


calcISO5817
Georg Rose
Calculate weld quality levels for ISO 5817.
The app assists welding engineers, technicians, and experts by calculating weld quality levels based on ISO 5817 standards. Users input weld geometry and select imperfections to determine if a weld meets required standards.





Board Meet+
Sachin Hiriyanna
Chair meetings with structure and clarity
Create and manage meeting agendas with built-in timers for each item. Track time spent on discussions and enforce time limits. Monitor meeting progress and control session flow remotely. Share agendas and update notes in real-time.

Fastener Calc
Bossard AG
Calculators and converters for engineers.
The app offers calculators and converters for engineers, technicians, designers, and students. It includes converters for length, torque, pressure, force, and hardness, alongside geometrical and mechanical calculators for bolted joint applications.


Summit Battery
Jiangxi Dahuo Network Technology Co., Ltd.
Monitor status and exchange data via Bluetooth
Monitors status and displays real-time voltage, current, power, and internal resistance. Tracks individual cell voltages and alerts for abnormalities. Communicates via Bluetooth to exchange data. Enhances stability and prolongs service life.







Orbit Architect
a.i. solutions, Inc.
Design and explore satellite orbital geometry interactively.
The app lets users design and explore satellite orbital geometry using an iPad's multi-touch interface. Users can manipulate orbits with gestures, see real-time effects on orbits and ground tracks, and animate results.
How we rank alternatives
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