About this app
C Reference is a quick reference for the C programming language. If you are an experienced C programmer use it as a quick reference guide, or if you are a student or just learning C it can be a valuable tool to help the learning process. All of the data is contained within the application, no internet connection is required. The C functions are separated into the following categories: String Functions String Conversion Functions Character Functions File Functions I/O Functions Math Functions Date/Time Functions Memory Allocation Memory Functions Utility Functions Bit Manipulation Also included is a reference guide for Data Types Conditionals Looping Pointers Precedence Operators Preprocessor Statements Each detail sheet contains Syntax, Description and Example sections. Sample code is supplied for each detail sheet.
Latest release
What’s New
Internal change that now requires iOS 16 or greater. Each detail sheet has a header label.
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 7, 2026 · 12:57 AM $0.99