can I get ipad on installements

If you want to buy it from Apple Online Store, it depends on the country you're in.

See this support page and contact a specialist:--> Apple Store Online - Apple

If you want to buy it from Apple phisycal Store or Apple Authorized Reseller, contact them and ask for monthly installments payments.

Regards

Giulio

If you are located in the U.S., see information in Apple Card - Monthly Installments - Apple and Products you can buy with Apple Card Monthly Installments - Apple Support and How to apply for Apple Card - Apple Support