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A Notion-based operating system for building, organizing and monetizing Custom GPTs
Estimated monthly website visits
Similarweb estimates for this domain, not active users. Only available observation months are shown; collection date is separate from the traffic period.
Collected Nov 11, 2026

According to OpenAITools.app telemetry verified on 2026-11-11, CustomGPT OS (gumroad.com) is an AI platform indexed under AI Assistant generating 18.93M monthly visits with a month-over-month traffic delta of +1.06M (+5.9%). Its primary geographic market is United States (30.9% traffic share), and it operates on a Paid pricing model. Top competing alternatives by monthly volume include ChatGPT (6.05B visits/mo), Google Gemini (2.64B visits/mo), Claude (1.25B visits/mo).
Saved hours organizing my custom GPT ideas.
A bit pricey for a Notion template, but well structured.
Super clean command center.
Still requires manual work.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Keeps tutorials, use cases and templates organized so you can reuse your best resources instead of starting from scratch every time.
A dedicated space to generate, capture and revisit Custom GPT ideas so promising concepts never get lost in scattered notes.
A structured build pipeline plus version tracking so you can iterate on a GPT and safely roll back or compare earlier versions.
One central view that lists and manages every active GPT you run, removing the need to hunt through separate tools or bookmarks.
Pre-built assistants that handle repetitive tasks, freeing your time for the work that actually grows the business.
CustomGPT OS is a digital product sold through the GCProductivity store on Gumroad. Rather than being a standalone web application, it is a fully customizable Notion workspace that acts as a command centre for anyone building and selling Custom GPTs. The creator positions it as a way to go from a blank page to a working army of AI assistants in under a few hours, even without technical skills.
The system is organized around a clear workflow. You start in the Learning Hub to collect resources, move to the Brainstorming Board to generate ideas, park them in the Idea Vault, validate them with the Market Research module, then build in the Building Factory while Version Control keeps every iteration safe. A Live GPTs dashboard lets you monitor all active assistants from one screen, and three bundled AI assistants take over repetitive chores so you can focus on higher-value work.
The store emphasizes practical outcomes: automating daily tasks, reclaiming productive hours, scaling output without hiring, and opening a new income stream by selling top-performing GPTs. It is designed for creators, solopreneurs and small business owners, and is sold with a private license. A larger CustomGPT Bundle adds a course, a library of ready-made GPTs, idea lists and prompt packs.
Route recurring tasks to bundled Custom GPT assistants and reclaim hours each week without adding headcount.
Take an idea from the Brainstorming Board through validation and build, then package your best GPT as a sellable product.
Use one organized dashboard to run several assistants at once and handle more work with the same team.
Skip designing a system from zero and start from a customizable template built specifically for GPT development.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | CustomGPT OS | 18.93M | +5.9% | 43% direct | Paid | Current |
| 1 | ChatGPT | 6.05B | +2.2% | 73% direct | Freemium | vs ChatGPT |
| 2 | Google Gemini | 2.64B | -0.1% | 62% direct | Freemium | vs Google Gemini |
| 3 | Claude | 1.25B | +23.8% | 72% direct | Freemium | vs Claude |
| 4 | DeepSeek | 372.76M | +4.3% | 78% direct | Freemium | vs DeepSeek |
| 5 | Grok | 203.85M | -0.8% | 66% direct | Freemium | vs Grok |
| 6 | Hostinger AI Website Builder & Hosting | 54.53M | +3.9% | 66% direct | Paid | vs Hostinger AI Website Builder & Hosting |

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