# Your First iOS and SwiftUI App, Episode 27: Variables and Constants | Kodeco

**URL:** <https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-episode-27-variables-and-constants-kodeco/197212>\
**Category:** 🎓 Courses & Articles\
**Created:** [October 6, 2023, 3:27am UTC](https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-episode-27-variables-and-constants-kodeco/197212 "2023-10-06T03:27:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rwenderlich](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/rwenderlich/32/108604_2.png) [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\
**Post date:** [October 6, 2023, 3:27am UTC](https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-episode-27-variables-and-constants-kodeco/197212/1 "2023-10-06T03:27:10Z")

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> This content was released on Sep 3 2019. The official support period is 6-months from this date.

Finalize the difference algorithm and score calculation, and learn about an important Swift concept: the difference between variables and constants.

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This is a companion discussion topic for the original entry at [https://www.kodeco.com/4919757-your-first-ios-and-swiftui-app/lessons/27](https://www.kodeco.com/4919757-your-first-ios-and-swiftui-app/lessons/27)