When doing some research here is a list of similar calculator apps that have some advanced features like qalculate, but may or may not be on all platforms. Nothing against qalculate - just for completeness.

• tydlig
• mac calc updates in '25+ release
• Chalk - chachatelier.fr/chalk/chalk-home.php?lang=en
• Qalculate - qalculate.github.io/index.html
• Speedcrunch - heldercorreia.bitbucket.io/speedcrunch/
• Figr - www.figr.app
• Kalker - kalker.xyz
• Numi - paid
• soulver - paid