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Get annual ChatGPT Apps Premium for $149
ChatGPT Apps Premium Subscription
For self-paced learning on the world's first ChatGPT Apps development course
  • Access to Basic ChatGPT Apps Course
    The interactive self-paced course consists of 100 lectures and 20 levels covering all essential topics: from first widget to Store deployment. You'll find MCP protocol, Agents SDK, ACP monetization, enterprise security, and 40 practical tasks.
  • Practice Environment
    The entire course is built on practice. You complete every task in a real development environment using professional tools. The IDE plugin lets you receive and submit tasks with just a couple clicks.
  • Practical Tasks
    The course includes 40 practical ChatGPT Apps development tasks that will help you master all key skills. You'll learn to create widgets, work with MCP, program agents, and configure ACP monetization. Each task has clear instructions and instant solution verification.
  • Task Requirements
    After submitting a solution for verification, you'll see a detailed report: which requirements are met and which aren't. Instead of guessing why your app doesn't work, you know exactly what needs fixing.
  • Instant Task Verification
    All your ChatGPT Apps are verified automatically and instantly. The system checks not only syntax correctness but also application logic. You immediately receive feedback and can improve your solution.
  • Optimization Recommendations
    The system analyzes your solution and provides improvement recommendations from a virtual AI mentor. It will suggest how to optimize code and avoid common mistakes.
Get annual ChatGPT Apps Premium for $149
Comments (1554)
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Karthik Rao K S
Level 18 , Mangalore, India
1 August 2018, 15:59
I have visited numerous websites and applications that claim to teach Java in the best way possible. But Code Gym stands out of all those websites; because it does what it claims to do. The simplest to the most complex of topics of Java are explained in layman terms so that anyone irrespective of their educational background can learn, practice, and master Java. A major thumbs up to you, Code Gym!
Anonymous #11357650
Level 2 , Kenya
18 June 2023, 09:06
But me I am not understanding why
Anonymous #11356534
Level 2 , South Africa
27 June 2023, 14:32
mmmh i think you need to be a little bit serious and dedicate more time to practice and learning
Shenika
Level 0
22 January 2025, 18:22
How abut Python?
hidden #10447638
Level 22
30 July 2019, 02:57
Just this morning I posted in another part that I would not be able to pay for the course. I've been around for 12 levels and I've definitely loved it. There is a saying that I've tried to stick to ever since I saw it: "empty your pockets to fill your mind, for once there will come a time where your mind will fill your pockets" I've got the money from a very close person and plan to take full advantage of the course. Happy coding, everyone!
Akash gupta
Level 1 , Sri Dungargarh, India
25 April 2019, 15:47
System.out.println("Awesome mehtod of teaching programming. I really appreciate it.");
慢就是快 Enterprise Java Developer
28 October 2021, 02:12
method :)
Anonymous #11433943 e at e
7 December 2023, 10:11
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Anonymous #11501823 e at e
17 April 2024, 11:48
Tara Edwards
Level 6 , United States
26 July 2019, 12:56
I'm reluctantly transitioning from manual testing to test automation. I've started a lot of java courses online and this is the first time I feel like I might actually be "getting it"!
Anonymous #11501823 e at e
13 April 2024, 01:23
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Tangerin
Level 27 , Chongqing, China
7 July 2019, 19:51
Absolutely love this website and its tutorial! I used to have a C class in university, but the professor is too dull and boring to pay attention to, I just skipped the whole course. But I passed the exam cuz I practice a lot, so I know that in programming, practice matter. And when I want to learn Java and found here...jeez, 80% practice, that's what makes you success, couldn't agree more.
Itgelsaikhan Enkhtur
Level 7 , Ulaanbaatar, Mongolia
25 December 2019, 13:08
Hello Tangerin. Can you say me please if I buy Premium account for one month it will contain all 40 levels? I want to finish all 40 lelvels but I can just buy one month Premium account. I saw that you loved this course site. Please answer me.
Maciej Blankenburg Java Developer
18 November 2022, 02:18
no, it is impossible, 12000 exercise even for me who is junior java developer is impossible in one month
mbaharchange
Level 1 , Germany, Germany
24 November 2022, 06:31
Tangerin, you've said it all😅
hidden #11339738
Level 9
23 May 2023, 04:07
12000? Actually, the real figure is 1200 exercises. Which is still challenging in one month.
Molchyn
Level 25 , Yahil'nytsya, Ukraine
31 July 2019, 10:07
Thank you for this course, thank you for the work you have done. Since the theory, enshrined in a large practice, is a big plus of this course. Good luck to all. P.S. We are waiting for additions to the course
Anonymous #11433943 e at e
7 December 2023, 10:11
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Michael Coleman
Level 8 , South Carolina, United States
3 June 2019, 05:53
I never thought coding was possible for me, but, so far, this program has been easy to understand and use. My only request would be to be able to see the best possible solution after getting a solution right, given that there are multiple ways to solve each task.
Anonymous #11501823 e at e
16 April 2024, 10:42
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浩倫洪
Level 0 , Taiwan
19 August 2024, 16:23
I
Kumar Vishal
Level 6 , India
1 August 2018, 21:11
Something new... The story based approach is what i like the most and at each step there are exercises after a brief lesson which makes it more intriguing. Thanks a lot for such a step.
Prasanthi
Level 3 , Chennai, India
22 October 2018, 08:37
This is really helpful. It is so different from Udemy lessons. All the task actually make me think a lot.....
nitesh
Level 3
2 August 2018, 07:22
awesome way of teaching
Anonymous #11501823 e at e
16 April 2024, 10:41
e