01
Draft the core business idea from your input
Organize who it is for, what you deliver, and how.
PrototypeR
Evaluate and propose business ideas in a pseudo market
Market simulationfor a business people want.
PrototypeR is an AI tool that builds and evaluates business ideas through pseudo-market simulations with generated customer personas, organizing why people would buy, why they would not, and what to fix next.
Free trial: draft the idea before evaluation
The free trial lets you create the draft business idea that will be used for simulation.
Refine a business idea through AI persona reactions.
02
Evaluate it in a pseudo market
Use AI persona reactions to confirm reasons to buy and reasons not to buy.
03
Propose a sharpened business direction
Turn the result into improvements to target, message, and first scope.
Turn pseudo-market reactions into the next proposal.
Simulate the created business idea from multiple customer viewpoints and use reactions and concerns to assemble a stronger direction.
Reactions reviewed in the pseudo market
Whether customers need the product
Extract what the market needs from persona reactions and propose a product that directly addresses the problem.
Why usage or purchase does not happen
Organize reasons people hesitate, such as price, switching cost, and trust.
Where to improve next
Connect findings to changes in target users, messaging, price, and first build scope.
What gets proposed
- Narrowed target users and usage scenes
- Value to communicate, price, and concerns at introduction
- First build scope and what to validate next
Start free by creating the draft business idea used for this simulation.
Organize a business idea for freeMarket reactions general AI cannot show
PrototypeR puts the business idea in front of generated customer personas and organizes reasons to buy, reasons not to buy, and next improvement proposals.
Output
General AI
Answer for the current conversation
PrototypeR
Business proposal evaluated in a pseudo market
Decision material
General AI
Mostly text
PrototypeR
Reasons to buy, reasons not to buy, and improvement proposals
Continuity
General AI
Context can scatter across conversations
PrototypeR
Previous organization is used in the next step
Likelihood to sell
General AI
You need to evaluate it yourself
PrototypeR
Checked through AI persona reactions
Implementation connection
General AI
Depends on how well you prompt
PrototypeR
Connects to requirements and prototype creation
Best use
General AI
Idea generation and writing
PrototypeR
Business idea evaluation, improvement proposals, and first-scope planning
What remains after organization
Draft business idea
Who it is for, what you deliver, and why.
Expected users and usage scenes
What kind of people use it and in what situations.
Value and money flow
What people value and who pays.
What validation confirmed
Reactions, reasons for hesitation, and fixes when validation is run.
First build scope
What to build first and what to leave for later.
Memo for prototype creation
Organized in a form that is easy to pass to the next implementation.
Credit charge model: use only what you need
Prepaid credits are used only when you run the necessary step.
- Credits are prepaid. If the balance is insufficient, execution does not start.
- Light Mode is suited to checking direction first.
- Think Mode is suited to organizing the content in more detail.
- The validation step is charged only when buyer response exceeds the threshold.
Light Mode
For starting small and testing quickly.
Organize business idea
3 credits
Organizes the idea, customer, problem, and first build scope.
Validation step, threshold reached
8 credits
Charged only when buyer response exceeds the threshold. Improvements are tried up to 3 times.
Validation step, below threshold
0 credits
If the threshold is not reached, the main charge for this step does not occur.
Build a prototype
3 credits
Charged per generation. Outputs are structured for easier use in the next implementation.
Think Mode
For organizing the content in more detail.
Organize business idea
15 credits
Organizes the idea, customer, problem, and first build scope.
Validation step, threshold reached
40 credits
Charged only when buyer response exceeds the threshold. Improvements are tried up to 3 times.
Validation step, below threshold
0 credits
If the threshold is not reached, the main charge for this step does not occur.
Build a prototype
9 credits
Charged per generation. Outputs are structured for easier use in the next implementation.
Example: in Light Mode, moving from business idea organization through prototype creation is roughly 14 credits. If the validation step is below threshold, the main charge for that step does not occur. 1 credit is approximately JPY 10 in prepaid value.
Common questions
How does pricing work?
PrototypeR uses prepaid credits. Credits are used only when each step is executed, and if the balance is insufficient, processing does not start.
Can I use it before signup?
Yes. In the free trial, you can create the draft business idea. It does not mean market validation or prototype creation can be completed for free.
Who owns the generated outputs?
Usage rights for generated outputs belong to the user.
How reliable is the AI market evaluation?
It does not replace actual customer interviews or sales data. PrototypeR is a support tool for finding weak points and things to verify at an early stage.
Can other users see my content?
No. Other people can view it only if you explicitly share a read-only link.
Can I share the outputs externally?
Yes. Requirements, validation results, and prototype outputs can be shared or exported.