Can I exchange my iPad Pro to a Mac mini or MacBook?

You can trade in the iPad for a gift card or a discount on a new purchase of whatever you choose, but it won't be an even exchange, you will need to pay the difference.

click here ➜ Apple Trade In - Apple

If you have purchased a new device directly from Apple, in many countries you have up to 14-days to unconditionally return an unwanted device for exchange or refund. If this applies to you, you can swap your iPad for a Mac of your choice - paying the difference in cost. Beyond 14-days, the opportunity to return and exchange is lost.

While Apple operates a trade-in programme, be aware that both current model devices are not eligible for trade-in. Typically, devices become eligible for trade-in when superseded by a newer model. Similarly, very old devices may have no trade-in value.

You can verify eligibility - and obtain an estimate of your iPad's trade-in value - here:

Apple Trade In - Apple

Apple offers a trade in and recycling program. Depending on the age and model of device you can receive a gift card or purchasing credit equal to that value (if the product is old enough they may not offer you any value but you can turn it into them for recycling)that you can put towards the new purchase, it won't be enough to cover the product but it can make a difference. You can find out here:

https://www.apple.com/shop/trade-in?afid=p238%7Cs4wibFo6O-dc_mtid_1870765e38482_pcrid_607196296690_pgrid_80259604234_pntwk_g_pchan__pexid__&cid=aos-us-kwgo-brand--slid---product-