About this app
This app provides study materials and learning tools to help you learn how to use correct prepositions. In English, a preposition can combine with a noun, adjective or verb to form a collocation. The authors have given a very complete list of common collocations of a noun, adjective or verb with prepositions and detail explanation of how to correctly use prepositions. In addition, sample sentences are added to illustrate each usage. Do you know what is the difference between “abound in” and “abound with”? When do we use “advocate of” instead of “advocate for”? Do you know which preposition go with adjective “contiguous”? This app will help you to learn how to choose prepositions correctly. We hope you enjoy this valuable work. ● units - entries are divided into units - use cards to study ● notes - write note for each entry ● basic features: - search feature - bookmark feature - built-in dictionary: long press a word to look up ● If you want to give feedback, please use the feedback feature in the settings
Latest release
What’s New
We have improved the app's user interface and performance in this version.
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 Aug 14, 2026 · 2:53 AM $0.99
Screenshots
