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Guides to upskill — and fund it

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Codex vs Claude Code: Which AI Coding Agent Should You Actually Use?
24-08-2026 178

Codex vs Claude Code: Which AI Coding Agent Should You Actually Use?

Both are agentic coding tools. Both ship a desktop app, an IDE extension, a CLI and a web surface. The real difference is where each one puts its centre of gravity: Codex is built to delegate work to, Claude Code is built to work alongside. Here is the honest comparison — context windows, token efficiency, multi-agent coordination, price — and which to learn first.

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From Our Classroom to the App Store: How a Learner Built LeanerTogether with Claude Code
24-08-2026 172

From Our Classroom to the App Store: How a Learner Built LeanerTogether with Claude Code

Tan Chin Hock, 47, sat our WSQ Agentic AI Applications with Claude Code class on 30 May 2026. Two days later he started building a calorie-tracking app that understands chicken rice and cai png. By August he had lost 3.2kg, shipped LeanerTogether on both the App Store and Google Play, and been featured in The Straits Times. Here is what his story shows about how fast a non-developer can now ship real software.

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What our learners say

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★ ★ ★ ★ ★

Well-structured, engaging and easy to follow

I had the pleasure of learning R Data Analytics and Visualization under Dr Alvin Ang at Tertiary Infotech. His lessons were well-structured, engaging, and easy to follow, allowing even complex R programming concepts to be understood with confidence. Through a combination of clear explanations, practical examples, and hands-on exercises, he created an enjoyable and highly effective learning experience. Throughout the course, Dr Alvin covered a comprehensive range of topics including data wrangling with the tidyverse, data visualization using ggplot2, data manipulation with dplyr, tidyr and readr, piping with %>%, text mining using wordcloud, and statistical analysis techniques that are highly relevant to real-world data analytics. He was always patient, approachable, and willing to answer questions, ensuring that every participant understood the concepts before moving forward. Beyond the classroom, Dr Alvin generously shared additional learning resources, industry insights, and practical career advice to support our continued learning journey. I would highly recommend Dr Alvin Ang to anyone looking to build a strong foundation in R programming, data analytics, and data visualization. His passion for teaching and depth of knowledge make him an outstanding trainer and mentor.
WW
Wanxin Wang CASL - Data Analytics and Visualization with R
★ ★ ★ ★ ★

Engaging Data Analytics with R Course

I had the opportunity to attend Dr Alvin Ang's Data Analytics with R course, and I enjoyed the class a lot. Dr Alvin Ang was able to explain R concepts very clearly and answer our questions promptly. His teaching style was very engaging (he includes some witty humour during the class from time to time). I would recommend anybody who wants to learn a skill to come sign up for a course at Tertiary Courses Singapore.
NW
Nah Yi Wei Data Analytics with R
★ ★ ★ ★ ★

Structured so easily to follow

My biggest THANK YOU for the workshop on Claude! Cos you structured it so easily to follow, and easy to execute, I digested well. Thank you 师父 (master)!!
TH
Tan Chin Hock WSQ - Agentic AI Applications with Claude Code
★ ★ ★ ★ ★

Explains things clearly and patiently

I would like to express my sincere appreciation to Dr. Alvin for being such a wonderful and dedicated teacher. He explains things clearly and patiently, making even difficult topics much easier to understand. Highly recommended!
MI
Muhammad Iszan WSQ - Data Analytics and Visualization with Python