It would be nice to have the option to only pay for the Proton services you want/use. I've been using a free Proton account for years with the desire to contribute, but my financial situation hasn't allowed for this. I'm just now to the point where I could pay a couple of dollars for Proton services, and would particularly benefit from an upgraded Proton Calendar. Unfortunately, this is only available in the Proton Unlimited, which is $10USD per month even when committing to a full year. This seems quite pricy when I just want a less restricted calendar. Would it be nice to also have Proton VPN, multiple email addresses, etc? Sure. But this plan isn't financially feasible for everyone. Regardless of which Unlimited service it is, I imagine I’m not the only one who would benefit from this proposal. Even if the a la carte prices were slightly more than their prices in the bundled plans, this would allow users to afford the privacy-friendly services they want & give Proton some income from users like me who currently provide nothing.