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

# How to Set Per Purchase Spending Limits, by Merchant Category (Mobile App)

> PEX gives Administrators sophisticated tools to manage cardholder spending, by limiting how much cardholders can spend on a single purchase in any Merchant Category (e.g., Restaurants, Retail Stores).

Administrators can set Per Purchase Spend Rules for cardholders through the Mobile App:

* Download the [iOS app from the App Store](https://itunes.apple.com/app/id584331280)
* Download the [Android app from the Google Play Store](https://play.google.com/store/apps/details?id=com.softjourn.pexcardholder)
* The download is free but carrier data rates may apply

## How to set the spend limit per purchase, by merchant category, using the Mobile App

<Steps>
  <Step>
    Log in to the Mobile App
  </Step>

  <Step>
    Click the "Cards" icon at the bottom of the screen
  </Step>

  <Step>
    Navigate to the cardholder
  </Step>

  <Step>
    Click on the cardholder's name
  </Step>

  <Step>
    Click "Spend Rules"
  </Step>

  <Step>
    Click on "Merchant categories"
  </Step>

  <Step>
    Click on the Merchant Category where you want to limit spending
  </Step>

  <Step>
    Enter the Per Purchase Limit amount in the first field
  </Step>

  <Step>
    Click "Save" in the upper right corner
  </Step>

  <Step>
    The Per Purchase limit now appears in the Category description
  </Step>
</Steps>


## Related topics

- [Managing Cards](/administrator-guide/managing-cards.md)
- [How to Set Per Purchase Spending Limits, by Merchant Category (Administrator Site)](/administrator-guide/how-to-set-per-purchase-spending-limits-by-merchant-category-administrator-site.md)
- [How to Set Spend Limits by Merchant Category](/administrator-guide/how-to-set-spend-limits-by-merchant-category.md)
- [How to set up spend policy](/administrator-guide/how-to-set-up-spend-policy.md)
- [Administrator Site](/administrator-guide/administrator-site.md)