Spek

Spek (stylized as Spek.) is a puzzle video game that was developed and published by for iOS, iPadOS, macOS, and tvOS.

Releases
Spek was announced by Apple on September 16, 2019 as an exclusive through Apple Arcade and early access was provided from that day to select users. On the following September 19th, it became publicly available as a launch title that was included with subscription to Apple Arcade for iOS. The iPadOS and tvOS versions became available on September 24th, followed by the macOS version in October 2019.

System requirements
As of December 2022, the minimum requirements for access through Apple Arcade are:
 * iOS 13 or later
 * iPadOS 13 or later
 * macOS 10.15 (Catalina) or later
 * tvOS 13 or later