shifree.com

What It Is

シフリー（Shifree） is a shift management SaaS offered by a Japanese operator, positioned around “Googleカレンダー連携シフト管理” — shift scheduling integrated with Google Calendar. Users sign in with a Google account, then create an organization and invite team members to collaborate on shift management, automatic calendar syncing, and approval workflows.

Core Features and Collaboration

Based on the available content, the core modules include Google account login, automatic Google Calendar synchronization, team shift management, organization creation, team invitations, and approval workflows. A key feature is that shift information can be written to Google Calendar, although the terms clearly state that user consent is obtained before doing so. Registration depends on an invitation from an organization administrator or an invitation code, indicating that it is designed for team use rather than as a purely personal tool. However, the site does not disclose more detailed capabilities such as role-based permissions, approval hierarchy, shift templates, shift swaps, or notifications.

Pricing and Integrations

On pricing, the terms explicitly state that “the service is provided free of charge,” and that users will be notified in advance if paid plans are introduced in the future. This makes it highly cost-effective at present. As for third-party integrations, only Google Calendar support is clearly mentioned, and Google account login is required. There is no visible information about integrations with Slack, HR systems, payroll systems, APIs, or Webhooks.

Security, Compliance, and Deployment

The service is provided via online login, so it can be regarded as a cloud SaaS; no self-hosting information is available. The terms state that rights to data entered by users remain with the users, and improper access is prohibited. However, there is no disclosed information on data encryption, backups, audit logs, access control details, ISO/SOC certifications, or the full text of a privacy policy. The terms also state that the service is provided as is and does not guarantee the accuracy or completeness of shift or calendar data, so enterprises with large-scale, mission-critical scheduling needs should evaluate it carefully.

Pros, Cons, and Who It’s For

The advantages are that it is free, easy to get started with, and tightly aligned with the Google Calendar ecosystem. It is suitable for small teams, retail stores, part-time teams, or project groups that want to sync shifts to personal calendars. The downsides are that public information is limited, enterprise-grade permissions, security compliance, customer support SLAs, and API capabilities are not disclosed, and the product is highly dependent on Google services.

Access from China

Because the product relies on Google login and Google Calendar, users in mainland China will generally need a proxy environment for stable use. Payment information is not disclosed. If a team is primarily based in mainland China, it is recommended to first evaluate local scheduling solutions such as DingTalk, WeCom, or Feishu.