> ## Documentation Index
> Fetch the complete documentation index at: https://docs.profy.cn/llms.txt
> Use this file to discover all available pages before exploring further.

# Pricing & Billing

> Choose the right pricing model for your Expert — free, trial, one-time purchase, or usage-based

Choosing the right pricing model is key to your Expert's commercial success. Profy offers four flexible pricing options to fit different product strategies.

***

## Four Pricing Models

<CardGroup cols={2}>
  <Card title="Free" icon="gift">
    Free for everyone, no charges
  </Card>

  <Card title="Trial + Paid" icon="hourglass">
    Free trial for a few conversation rounds, then purchase to continue
  </Card>

  <Card title="One-Time Purchase" icon="bag-shopping">
    Users pay once for unlimited permanent access
  </Card>

  <Card title="Usage-Based" icon="gauge">
    Charged based on actual usage (token consumption)
  </Card>
</CardGroup>

***

## Free Model

**Best for**: Building an initial user base, establishing reputation, non-profit Experts

* Everyone can use it without barriers
* Zero payment pressure for users, easier to attract initial traffic
* You won't earn direct revenue from usage
* Works well as a "lead magnet" paired with paid Experts

<Tip>
  A free Expert is a great way to attract attention. Many successful creators use a free Expert to demonstrate their capabilities, then guide users toward purchasing the paid version.
</Tip>

***

## Trial + Paid Model (Recommended)

**Best for**: The optimal choice for most Experts

* Users can try a certain number of conversation rounds for free
* After the trial ends, they need to purchase to continue using
* Trial rounds are freely configurable
* Lets users experience value first, reducing the purchase decision barrier

<Note>
  Setting trial rounds is an art: too few and users won't feel the value, too many and they may not feel the need to pay. Set enough rounds for users to experience their "aha moment."
</Note>

***

## One-Time Purchase Model

**Best for**: High-value, low-frequency Experts; scenarios where users dislike usage-based billing

* Users pay a one-time price for unlimited permanent access
* Price is set by you
* Ideal for Experts positioned as "tools" (e.g., resume optimizer, contract reviewer)
* After paying, users have no psychological burden and often use it more frequently

***

## Usage-Based Model

**Best for**: API integration scenarios; users with highly variable demand; significant differences between heavy and light usage

* Charged based on actual token consumption
* Users only pay for what they actually use
* Ideal for Experts called programmatically via the Platform API
* High-usage users contribute more revenue

***

## How to Set Pricing

<Steps>
  <Step title="Go to the Studio Edit Page">
    Open your Expert and switch to the "Billing" tab.
  </Step>

  <Step title="Choose a Pricing Model">
    Select the most suitable model from the four options.
  </Step>

  <Step title="Configure Parameters">
    * Free: No additional configuration needed
    * Trial + Paid: Set trial rounds and purchase price
    * One-Time Purchase: Set the one-time price
    * Usage-Based: Confirm per-token billing
  </Step>

  <Step title="Save Settings">
    Once saved, pricing takes effect after the next version review is approved.
  </Step>
</Steps>

***

## Pricing Strategy Tips

<Accordion title="Start Free, Then Monetize">
  Launch with a free model first, observe user feedback and usage data. Once you confirm the product has appeal, switch to a paid model. The accumulated reviews and usage history will significantly boost paid conversion rates.
</Accordion>

<Accordion title="Make Trial Rounds Meaningful">
  Trial rounds should be just enough for users to complete one full task experience. If your Expert helps write proposals, 3 rounds may not be enough to finish one; if it answers professional questions, 3 rounds might suffice.
</Accordion>

<Accordion title="One-Time Price Reference">
  Reference pricing of similar consulting services. If your 1-hour consultation costs 500 yuan, and users get comparable value from your Expert, you can price at a certain percentage of that range.
</Accordion>

<Accordion title="Usage-Based Works for B2B">
  If your target users are developers or enterprises (integrating via API), usage-based billing is usually the most reasonable choice — let clients pay for actual consumption to lower the integration barrier.
</Accordion>

***

## Your Revenue

Regardless of which pricing model you choose, here's how your revenue works:

* **One-Time Purchase / Trial + Paid**: For each user purchase, you earn a percentage as diamond revenue
* **Usage-Based**: For each usage fee generated, you earn a percentage as diamond revenue

The specific revenue share depends on your creator level. See [Revenue System](/en/creators/revenue-system) for details.

<Warning>
  Pricing information is publicly displayed on the marketplace page. The price users see is the real-time price shown in the product.
</Warning>

***

## Changing Pricing

You can modify your Expert's pricing model and price at any time. After changes:

* Saved as draft state
* Submit a new version for review
* New pricing takes effect after review approval
* Existing purchasers' entitlements are not affected

***

## Next Steps

<CardGroup cols={2}>
  <Card title="Publish to Marketplace" icon="rocket" href="/en/creators/publish-and-review">
    Pricing set, ready to go live
  </Card>

  <Card title="Revenue System" icon="diamond" href="/en/creators/revenue-system">
    Learn how much you can earn
  </Card>
</CardGroup>