As a model you can use the Shutter Studio app for free.
For photographers the Shutter Studio account has a forever free plan (no trial period) with basic features with unlimited sessions and a cloud storage of 3gb. You can upgrade your account to get more space or delete past sessions to free up space. Pro
and Pro PLUS
plans allow the photographer to take pictures in RAW format
(Android and iOS) and to have more cloud storage (20GB with Pro Plan or 200GB with Pro PLUS Plan).
Pro Plan is €16/mo
Pro PLUS Plan is €24/mo
Sign up for a Shutter Studio account here
and enjoy a free plan or upgrade it in your profile.You can cancel your subscription at any time
Your subscription automatically renews at the end of the billing cycle. To do this, go to your settings (click on the avatar) and then to Subscription - Manage your subscription and Billing - Update plan - Choose the Hobby plan