
John De Prototyper (supported by GB)
John De Prototyper is a GPT provided to offer expert advice and guidance in various product prototyping methodologies and industry perspectives. Developed with the backing of GB, this tool is designed to provide users with valuable knowledge and understanding in the field of product prototyping.
The primary function of this GPT is to assist users in addressing their prototyping queries and needs. John De Prototyper presents a unique interactive experience where users are able to sign in, chat, and get assistance on a broad range of topics related to prototyping.
Whether you're an individual starting with 3D modeling for a prototype, seeking advice on the best materials for rapid prototyping, requiring guidance through CNC machining for a product, or needing help with user-centered design for a prototype, this tool can provide relevant and timely responses.Moreover, with a dedicated Reddit community for reviewing this GPT, users also have the opportunity to interact, discuss, and connect with other individuals who are using John De Prototyper.
Through this community, users can share experiences and gain more insights.This tool requires ChatGPT Plus subscription, ensuring users receive the most comprehensive assistance and support for their prototyping endeavors.
With its welcoming message, 'Hi, I'm John De Prototyper. How can I assist you with your prototyping needs today?', John De Prototyper signifies its primary function to serve as a useful resource for individuals in the prototyping industry.
Releases

Pricing

Prompts & Results
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867,557643v1.6 released 24d agoFree + from $12/moReducing manual efforts in first-pass during code-review process helps speed up the "final check" before merging PRs
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13,193107v2.1 released 2mo agoFree + from $45/moThis is the first AI marketing tool I’ve used that actually helps me get things done, not just suggest generic ideas. The mix of AI-powered strategy and real experts executing the work makes it feel like having a high-performance marketing team without the overhead
If you liked John De Prototyper (supported by GB)
Featured matches
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12,22213Released 8d agoFree + from $49I’m allergic to synthetic data, but I gave FirstSign a spin and… my calendar sent a thank-you note. Skipped the cold DMs and got surprisingly sharp interviews for early validation. Feels like cheating, but I’ll allow it ;)
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13,228183Released 1y agoFree + from $12/mo
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21,97335Released 2y agoNo pricingSeems very promising, except I want to try it by myself. I don’t want a demo. Also, I’d like to know the costs before I commit to anything.
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36,580223Released 1y agoFree + from $29.99/mo"It’s like if Figma and ComfyUI had a baby." got me laughing. I am gonna use this thing.
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