To cite package ‘appler’ in publications use:

Baldry A (2023). appler: 'Apple App Store' and 'iTunes' Data Extraction. R package version 0.2.1, https://github.com/ashbaldry/appler.

Corresponding BibTeX entry:

  @Manual{,
    title = {appler: 'Apple App Store' and 'iTunes' Data Extraction},
    author = {Ashley Baldry},
    year = {2023},
    note = {R package version 0.2.1},
    url = {https://github.com/ashbaldry/appler},
  }