Yes. On Shopify Plus stores, you can offer the gift on the checkout page. This is available on the Plus only plan.

Steps
- In Omake's Settings > Checkout, under Where to offer the gift, set Offer the gift in to Checkout.
- Add the Omake gift offer block in the checkout editor.
What customers see
¥0 gifts are added to the order automatically, and others get an Add button. Customers can remove the gift if they don't want it.
The text can be changed for each language.
Related
Offer the gift inside checkout