Frequently Asked Questions

Tärnsund Business Developer is a platform that discovers, validates, and analyzes business ideas. Each idea comes with a complete deep analysis including market sizing, financial projections, competitive analysis, and implementation roadmaps. We also offer tools like Idea Lab, Blueprint Builder, and Idea Chat to help you go from concept to execution.

We scan thousands of data points across online communities, search trends, market reports, and emerging technology signals to identify opportunities with real demand, manageable competition, and clear paths to revenue. Each idea then goes through a multi-phase analysis pipeline.

New ideas are added weekly as our research pipeline runs continuously. Each batch goes through our full analysis pipeline before being published to the platform.

Idea Lab creates personalized business ideas based on your skills, experience, budget, and preferences. You fill out a short form and get 3 unique ideas tailored to you, complete with market fit analysis, revenue models, and getting started steps.

Blueprint Builder takes any idea and generates a complete project plan: a Product Requirements Document (PRD), recommended tech stack, cost estimate, go-to-market strategy, and copy-pasteable build prompts for AI coding assistants like Claude Code or Cursor.

Idea Validation runs real-time web searches to assess your idea against the current market. It finds competitors, demand signals, market gaps, and risk factors — then delivers a verdict (strong, moderate, weak, or risky) with a specific recommendation. You can validate ideas directly from your Idea Lab history.

Both Validation and Blueprint Builder continue running on our servers even if you close the tab or navigate away. Your results are automatically saved and will appear instantly the next time you open them — no need to re-run.

Yes! Both Idea Lab ideas and Blueprint Builder plans have Share buttons that create public links. You can copy the link or share directly to X and LinkedIn. Each shared page has a branded preview image for social posts.

Idea Chat lets you have a conversation with AI about any idea in our database. Ask questions about market fit, technical implementation, revenue strategy, or anything related to the idea. The AI has full context of the idea's analysis.

Free users get one trial of the Idea Lab and one trial of the Blueprint Builder — no credit card required. The trial gives you a preview of the output so you can see the value before subscribing. This is a one-time trial that cannot be repeated.

Free users can browse all idea cards with names, scores, and taglines. Each day, one idea is unlocked as the "Idea of the Day" and each week one as "Idea of the Week" — you can view their scores, executive summary, and problem/solution analysis for free. You also get one free trial each for Idea Lab and Blueprint Builder.

Every day at midnight UTC, a new idea is selected from our database and made fully accessible to all users (including non-logged-in visitors). The selection is deterministic — everyone sees the same idea on a given day.

No! You can browse all idea cards and view the Idea of the Day without creating an account. Creating a free account gives you access to bookmarking, the free trials, and your profile page.

Tärnsund Business Developer includes three free startup tools that anyone can use without an account: Business Name Generator, Break-Even Calculator, and Lean Canvas Creator. Find them all under the Tools section in the navigation.

Enter a short description of your business idea and get AI-generated name suggestions instantly. Great for brainstorming when you're starting out.

A visual calculator that shows you exactly how many customers or units you need to sell to cover your costs. Enter your fixed costs, price per unit, and variable costs — and get an interactive chart with your break-even point.

Build a one-page Lean Canvas for your startup idea. You can fill it in manually or let Blueprint Builder auto-generate one from your build plan. Export as PDF when you're done.

We offer three tiers: Free, Pro, and Pro+. The Free plan lets you browse all ideas, try the Generator and Builder once, and access the Startup Tools. Pro unlocks full deep analysis, Idea Chat, and more. Pro+ is for serious founders who want unlimited tools, Pitch Deck exports, and priority features. See our pricing page for current plans and pricing.

Yes. You can cancel your subscription at any time from your profile page via the "Manage Subscription" button. Your paid access continues until the end of your current billing period. No further charges will be made after cancellation.

No. Because the service delivers AI-generated content instantly upon use, we do not offer refunds for subscription fees already paid. When you cancel, you keep access until the end of your current billing period. If you experience a technical issue preventing access, contact us at johan@tarnsund.se within 14 days.

We accept all major credit and debit cards including Visa, Mastercard, and American Express. All payment processing is handled securely by Lemon Squeezy, our merchant of record, who also handles global tax/VAT compliance.

Yes. Your account data, bookmarks, chat messages, and generated content are completely private. We do not sell or share your personal data with third parties. See our Privacy Policy for full details.

Our analyses are generated by AI and should be treated as high-quality starting points for your own research, not as definitive business advice. Market data, competitor information, and financial projections are estimates based on available data at the time of analysis. We recommend validating key assumptions before making business decisions.

When you use features like Generator, Builder, and Chat, your inputs are sent to third-party AI services for processing. We only send the minimum data necessary to generate your requested content. See our Privacy Policy for details.