In need of a password manager for 3 devices

Hi, I would like to have a good password manager to use across three devices, and preferably one that supports an unlimited number of accounts (is this necessary?). Best of all, I would like it to be at a very affordable price. Are there any free password managers worth using? Even if they don't get close to these specifications. Please let me know how you've made your choice, and any recommendations you have on how to choose mine. Thanks in advance!