# Pricing models

How your app earns, always in EUR.

All app pricing on Southbill is denominated in **EUR**. Merchants see and pay EUR; conversion happens on their side.

| Model | When to use | Billing |
| --- | --- | --- |
| **Free** | Growth, companion apps, internal tools | Nothing charged |
| **One-time purchase** | Setup-heavy tools, migrations, templates | Charged once at install |
| **Subscription** | Ongoing value: automation, reporting, support | Monthly or yearly, recurring |

Pick the model in the wizard step *Availability & pricing*, set the price in minor units and describe the details ("from €19 / month") in the pricing text. The pricing shown in the store must match what you actually charge — mismatches are a rejection reason.

## Trials and discounts

Offer them inside your own product and describe them in the pricing details. There is no platform-managed trial engine yet.

## Publishing fee

Publishing a version in live mode charges a one-time publishing fee to your billing method. Sandbox publishing is always free — the fee simply does not exist in test mode.

## Changing prices

A price change is a new version and goes through review. Existing subscribers keep their price until you migrate them; communicate changes at least 30 days ahead.