Grasshopper (mobile app)
Grasshopper was an app developed by Google that taught users to code with JavaScript. Available for IOS and Android operating systems, the program had aimed to teach with small "bite-size" coding lessons. The program got harder as it progressed, and upon finishing the program, the user was given a certificate of completion. Assessments were not required to gain the certificate of completion. In March 2023, Google announced that Grasshopper would shut down on June 15, 2023. References

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Android (operating system) software
Discontinued Google services
Discontinued Google software
IOS software
Mobile software