ConfTool vs HotCRP

ConfTool is conference management software for academic conferences, congresses, workshops, and seminars, including on-site and virtual events. It supports submissions and reviews, program scheduling, participant registration, administration, and invoicing. With ConfTool Pro, organizers can configure open or blind reviews, optionally use multiple tracks, schedule accepted submissions, and check presenter conflicts. Participants can create personal agendas. Pro registration supports participant groups, time discounts, event options, and admission limits; payments can be handled by bank transfer, PayPal, Stripe, or connections to more than 45 online credit card payment systems. Pro can link sessions and presentations to external virtual-event resources and export data in Excel, Word, CSV, JSON, and XML. ConfTool Standard is free on request for smaller non-commercial events, for up to 150 participants, and requires local installation. Pro is hosted and billed per conference; its fee depends on event requirements and size, and optional modules may cost extra. The maker lists HTTPS access, automatic backups, and role-based access control. Standard comes without support, while Pro includes professional support.

HotCRP manages conference paper submissions and reviews, either as open-source software for self-hosting or through the hosted HotCRP.com service. Submission tools include customizable forms, optional registration, program-committee conflict collection, and configurable PDF checks. Papers can be assigned by hand, in batches, or automatically, including through globally optimal assignments. Search, sorting, bulk downloads, formulas, and tags help organize submissions. Review workflows support custom forms, LaTeX math, multiple rounds, offline reviewing, delegation, and external reviewers. Program committee meeting tools include rebuttals, votes, rankings, a live tracker, decision types, and mailing users. The REST API uses bearer tokens that can be scoped, including for read-only access or selected papers. HotCRP.com connects with ACM publication services for copyright forms, final versions, PDF checks, proceedings, and Digital Library export. Self-hosting requires a web server and software including Nginx, PHP 7.3 or higher, MariaDB, and PHP packages. Listed free plans serve certain sponsored events and classroom use; independent conferences pay $7.50 per submission after the deadline.