Yes, both Flock and Nextcloud offer a Free Trial.
Flock is designed for Large Enterprises, Medium Business and Small Business.
Nextcloud is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing details for both Flock and Nextcloud are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to Flock includes CollaborateCloud, Zoho Connect, Zoho Cliq, ClickUp, Workplace, Zimbra Collaboration, mi.team, Fleekdrive, Chatter, Collabtools and Ideagen Huddle.
Some top alternatives to Nextcloud includes TrueConf Server, Flock, CollaborateCloud, ClickUp, Google Workspace, Google Drive, FileCloud, ownCloud.online, ownCloud, Fleekdrive and Genialcloud Facsys.