# C Reference

> Offline C programming language quick reference guide with examples. (iPhone/iPad app by Kenneth Wallace.)

- Source: https://appshunter.io/ios/app/c-reference/id318595873 (this page in markdown: same URL + `.md`)
- Developer: [Kenneth Wallace](https://appshunter.io/developer/318595876)
- Category: Reference, Utilities
- Price: $0.99
- Rating: 2.00/5 from 1 App Store ratings · 29 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 1 MB
- Languages: American English
- Released: 2009-06-07
- Data updated: 2026-08-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/c-reference/id318595873/reviews.md

## What is C Reference?

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.

## Key features

- Offline C programming reference
- Categorized C functions
- Data types and control structures
- Syntax, description, and examples
- Sample code for each detail sheet
- No internet connection required

## Chart rankings

- #197 in Top Paid · Reference (US App Store)

## Recent user reviews (10 of 29)

All indexed reviews: https://appshunter.io/ios/app/c-reference/id318595873/reviews.md

### 2/5 — Too basic, not enough shown per function

*2024-07-15*

This isnt nearly complete. So many functions in C have specifics that are not covered here. Things like fseek() not having seek_cur or seek_end means this isnt a very usable source. Feels like a half cocked student project.

### 5/5 — A rare find

*2016-10-28*

Very, very rarely do I take the time to review an app. 

This one is worth it.

It is concise, accessible and with just the right level of detail as a reference/introduction to concepts.

I will be using this regularly whilst completing my CS course.

Thank you. Truely.

### 3/5 — Nice app for reference

*2013-11-16*

The icon is horrible on iPhone 5s I'd like to see this fixed I would not have paid for this had I known is was so bad!

### 4/5 — Good

*2011-12-20*

Good reference with examples . Fully working

### 5/5 — Great App!!!

*2011-12-19*

But, please, add icon for retina display... PLEASE!!! :)

### 5/5 — Greats

*2011-11-23*

Great app!

### 5/5 — FIXED!!

*2011-11-20*

Works very nicely now 👍

### 1/5 — BROKEN!

*2011-11-08*

I might like it if it worked with IOS 5. Ken, Please fix your program.

### 2/5 — iOS5 is having none of it

*2011-10-28*

Crashes as soon as you work through the sub menus to whatever you wanna look up. Please sort this, it was once so handy

### 1/5 — Needs update

*2011-10-28*

Always crashes in iOS 5. Unusable.

## Frequently asked questions about C Reference

### What C programming topics does C Reference cover?

C Reference covers a wide range of C programming topics, including String Functions, Memory Allocation, Data Types, Conditionals, Looping, Pointers, and Preprocessor Statements. Each topic includes syntax, a description, and example code.

### Can I use C Reference without an internet connection?

Yes, C Reference is designed to be used entirely offline. All of the data is contained within the application, so no internet connection is required to access its content.

### What is the price of C Reference?

C Reference is a paid application and costs $0.99. There are no in-app purchases or ads mentioned.

### What devices is C Reference available on?

C Reference is available on iPhone and iPad devices.

### How often is C Reference updated?

The latest version of C Reference is 1.4, which was last updated on April 23, 2025. This indicates a recent update.

### What is the age rating for C Reference?

C Reference has an age rating of 4+, making it suitable for a broad audience.

### What do users think of C Reference?

Based on the provided data, C Reference has a rating of 2.0 stars from 1 rating. This suggests a mixed or negative user sentiment from the single available review.

### Is C Reference suitable for beginners learning C?

Yes, C Reference can be a valuable tool for students and those just learning C. It provides clear explanations and example code to aid the learning process.

## Version history (last 5 releases)

### 1.4 — 2025-04-23

Internal change that now requires iOS 16 or greater. Each detail sheet has a header label.

### 1.3 — 2023-10-23

Updated using current iOS architecture and now available on iPad.

### 1.2 — 2013-06-13

Added Bit Manipulation section

### 1.1 — 2011-11-19

Corrected errors when used on iOS 5

### 1.0 — 2009-06-07

No release notes.

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All apps by Kenneth Wallace: https://appshunter.io/developer/318595876

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*