About this app
Greetings, Cadet, and welcome to the Punctuation Department! Punctuation is the police force of Grammaropolis, keeping the sentences running smoothly and clearly. Without punctuation, there would be total chaos! Meet Officer Period, Detective Question Mark, and Sergeant Exclamation Mark and discover everything they do to add clarity to your writing. Includes bonus sections on Capitalization and Abbreviation! Track your progress through our puzzle bank, and test your knowledge with increasing levels of difficulty. Drag and drop the appropriate punctuation and capitalization to sentences and paragraphs! Grammaropolis was created and developed in the ultimate proving grounds: the classroom.
Latest release
What’s New
This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included. iOS 11 support.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 8, 2026 · 2:30 AM $2.99
Screenshots
