This page covers AI StartupPro on IDX, from AI Data Inc. (AIデータ株式会社) in Minato-ku, Tokyo. Its product page is in Japanese, and we describe it in English here. The page doesn't state which languages the product supports. A press release dated 15 January 2026 announced it and planned a launch for mid-February 2026. We read that release and the product page in October 2026. No prices are published, so this page is short.
The seven advisors
| Advisor area | Work described in the release | Closest in Nautis |
|---|---|---|
| Business design | Structuring ideas, competitor analysis, pivot support | Business plans, SWOT |
| PMF and customers | Target definition, interview summaries, hypothesis testing | GTM planner experiments |
| Development | MVP design, feature priorities, technology choice, roadmaps | Task boards |
| Finance and funding | Runway and burn, fundraising strategy, investor materials | Startup Health, fundraising CRM, investor readiness |
| Sales and partnerships | Sales materials, pricing strategy, winning patterns | Leads CRM, contacts |
| People and organization | Job requirements, role design, culture, skills gaps | Jobs and recruitment, employee management, Burnout Radar |
| Management and PMO | Weekly KPI summaries, decision frameworks, priorities, tracking | Decision Loop, daily briefing |
How AI StartupPro works, as described
It's built on a platform called AI孔明 on IDX, which the release describes as combining generative AI, retrieval and a virtual data room. Company data, documents and financial information sit on the IDX platform, and the advisors answer from that knowledge base. The aim it states is to replace founder-dependent management with a repeatable process. The release also mentions no-code data connection and use of AI models.
Its target users go beyond founders. The release names seed to Series A founders, corporate new-business units, accelerators, investors and consulting firms.
Getting access, and what we couldn't confirm
- Access. The page offers a proof of concept at no cost, a demo request and a general inquiry, all through the same AI Data form.
- Price. Not stated on the page or in the release.
- Live status. The release planned a mid-February 2026 launch, and the product page is live with contact forms. We couldn't confirm usage beyond that.
- Actions. The pages describe decision support. We didn't see whether advisors take actions in other tools.
How Nautis differs from AI StartupPro
AI StartupPro puts advisors over your documents. Nautis starts from its own working modules. In Nautis, the investor list lives in a fundraising CRM, invoices live in invoices, and the Chief of Staff reads across those every morning at 7:00 am and proposes actions you approve. Its AI Advisory Board offers specialist advisors too, and custom advisors can carry their own knowledge files, so that part of the two products is comparable.
For buying, Nautis lists $49, $99 and $129 a month as of October 2026 and offers a 14-day trial with no card, so a small team can decide without a meeting. There's no free tier.
Language is the likely deciding point. Nautis screens and guides are in English. Its AI replies in the language you write in, and MailBox can translate messages into Japanese, but we didn't see a Japanese interface. A company in Tokyo whose documents and staff work in Japanese should test AI StartupPro's proof of concept first.
Which to choose
Consider AI StartupPro if you're in Japan, already keep your knowledge in documents, and are comfortable with a sales conversation. It also suits a corporate innovation team, which falls outside Nautis's focus on startups. Consider Nautis if you need a startup operating system that holds records as well as advice, and if English works for your team.
Remember Nautis's own limits. It launched on Product Hunt in July 2026, independent reviews are few, its credits are capped, and it's not an accounting system or a replacement for a lawyer or accountant. A workspace with little data also produces a thin briefing.
FAQ
What is the main difference in Nautis vs AI StartupPro?
AI StartupPro places seven AI advisors over your company's documents and data, with pages in Japanese and access through a proof of concept. Nautis is a set of working startup modules with a daily AI briefing, published prices and a self-serve trial.
How much does AI StartupPro cost?
AI Data's page and press release don't state a price as of October 2026. The page offers a proof of concept at no cost and a demo through a contact form, so you'd need to ask.
Does Nautis work in Japanese?
Partly. Its screens and guides are in English. Its AI replies in the language of your message, and its voice settings and MailBox translation list Japanese. Test it during the 14-day trial if your team works in Japanese.
Disclosure: We make Nautis, so we have a stake in this comparison. It's based on published information, not a scored hands-on test. Spotted something out of date? Tell us and we will correct it.
Sources
- IDX: AI StartupPro (checked Oct 31, 2026)
- PR TIMES: AI StartupPro on IDX release, 15 January 2026 (checked Oct 31, 2026)