Comparing as AI Scheduling & Calendar ToolsShortwave vs Clockwise
Compare features, pricing, pros & cons, and user ratings to decide which AI tool is best for your needs.
Shortwave
Clockwise
Core Differences
The fundamental difference lies in their primary domain of AI application and workflow integration:
- Shortwave: An AI-powered email assistant that integrates directly with Gmail/Google Workspace. Its AI focuses on understanding, organizing, writing, and automating tasks within the email client, effectively transforming the inbox into a productivity hub. It uses agentic AI to manage communication flows.
- Clockwise: An AI-powered calendar optimizer. Its AI was dedicated to analyzing and manipulating calendar events to create more efficient schedules, generate 'Focus Time', and reduce meeting conflicts. It operated on the structure of time rather than the content of communication.
In essence, Shortwave optimizes your communication workflow, while Clockwise optimized your time allocation workflow.
Verdict by Category
Email Productivity & Automation
Shortwave is purpose-built for comprehensive AI-driven email management, offering organization, writing, and workflow automation.
Team Collaboration Features
Shortwave explicitly mentions enhancing team collaboration through shared threads and comments within email.
Future Viability & Support
Clockwise is discontinuing service on March 27, 2026, making Shortwave the only sustainable option for long-term use.
Editor's Take
Honest opinion from our review team
As someone constantly battling inbox overload and fragmented schedules, I found myself drawn to the promise of both tools. Using Shortwave felt like having a highly efficient, almost clairvoyant, personal assistant for my email. The AI-powered bundling and intelligent autocomplete genuinely streamline the process of triaging and responding. I particularly appreciated how it integrates with other tools; it felt less like just an email client and more like a command center for my communications and tasks. The learning curve was minimal for basic features, and the AI suggestions felt increasingly intuitive over time. It truly changed the 'feel' of managing my inbox from a chore to a more proactive, organized activity.
Clockwise, in its prime, offered a different kind of relief. The concept of 'Focus Time' being automatically carved out felt like a guardian angel protecting my deep work. It intelligently shifted meetings, reducing the mental overhead of calendar Tetris. However, knowing that Clockwise is shutting down significantly impacts its appeal. While it did make my calendar feel more optimized, the ephemeral nature of its service overshadows any past convenience. It's a stark reminder that even the most innovative tools require long-term commitment from their creators to be truly valuable.
Detailed Comparison
Shortwave offers a clear and tiered freemium model, which is highly advantageous. Its free plan provides standard search history and limited AI usage, allowing users to experience core benefits before committing. For more advanced features and higher AI usage, the Business, Premier, and Max plans are available at transparent annual rates, catering to different team sizes and needs. This structure provides excellent value for money, particularly for teams leveraging its collaborative features.
Clockwise, conversely, had a 'Custom' pricing model with no public details, which can be a barrier for smaller teams or individuals seeking transparency. More critically, its impending service shutdown on March 27, 2026, completely negates any potential value proposition, as the service will cease to exist. This makes Shortwave the undisputed winner in terms of pricing clarity, accessibility (with a free tier), and long-term investment viability.
Shortwave Pros & Cons
Pros
- Saves time by automating email tasks
- Enhances team collaboration through shared threads and comments
- Improves inbox organization with AI-powered filters and bundles
- Integrates with other productivity tools for seamless workflows
- Offers a free plan for basic use
Cons
- Advanced features require a paid subscription
- Relies on Gmail or Google Workspace accounts
- May require a learning curve to fully utilize all AI features
- Accuracy of AI summaries and suggestions may vary
- Limited customization options compared to traditional email clients
Clockwise Pros & Cons
Pros
- Helps create dedicated Focus Time
- Optimizes meeting schedules for better efficiency
- Integrates seamlessly with existing calendars
- Reduces meeting overload and improves productivity
- Offers flexible meeting options
Cons
- Service ending on March 27, 2026
- Smart Hold events will be removed from calendars
- Scheduling Links will no longer be available
- No data transfer to Salesforce after shutdown
- Customer support will end on March 27, 2026
AI Verdict
In the bustling landscape of AI-powered productivity tools, Shortwave and Clockwise emerge with distinct approaches to time and task management. Shortwave positions itself as an AI email assistant, a sophisticated agent designed to revolutionize your inbox. It tackles email overload head-on, leveraging agentic AI for intelligent organization, writing, search, and scheduling. Imagine an AI proactively bundling related emails, drafting replies, or finding that crucial attachment with a natural language query – that's Shortwave's core promise. It's built for individuals and teams who find their productivity bottlenecked by email, offering integrations with tools like Slack, Notion, and Asana to transform emails into actionable workflows.
Clockwise, on the other hand, was a pioneer in AI-powered calendar optimization. Its mission was to make time for focused work by intelligently rescheduling meetings, creating 'Focus Time' blocks, and streamlining team schedules. While Shortwave focuses on the content and workflow originating from email, Clockwise honed in on the structure and allocation of time on your calendar. It was ideal for organizations struggling with meeting fatigue and fragmented schedules, aiming to carve out dedicated periods for deep work. However, a critical differentiator is Clockwise's impending service termination on March 27, 2026, as it joins Salesforce, rendering it a non-viable long-term solution.
Ultimately, the choice hinges on your primary pain point. If your inbox is a chaotic vortex demanding an intelligent assistant to automate and organize communication, Shortwave is the clear, forward-looking solution. It aims to make your email an integrated productivity hub. If you previously sought AI to optimize your calendar for better meeting hygiene and focus time, Clockwise offered a compelling solution, but its sunset date means users must now seek alternatives for calendar optimization, while Shortwave continues to innovate in the email space.
Frequently Asked Questions
QDoes Shortwave work with email providers other than Gmail/Google Workspace?
No, Shortwave is designed to integrate specifically with Gmail and Google Workspace accounts. It leverages the underlying Google infrastructure to provide its advanced AI and organizational features.
QWhat happens to my Clockwise data after March 27, 2026?
Clockwise has stated that Smart Hold events will be removed from calendars, and Scheduling Links will no longer be available. Crucially, there will be no data transfer to Salesforce after the shutdown, meaning users should export any necessary data before the deadline.
QCan Shortwave's AI write entire emails for me?
Shortwave's AI can assist significantly with email writing, offering intelligent autocomplete, drafting suggestions, and enhancing existing text. While it can generate substantial portions of an email, it's designed to be an assistant, requiring human review and finalization for accuracy and tone.
QAre there any alternatives to Clockwise for calendar optimization now that it's shutting down?
Yes, many other tools offer similar calendar optimization features, including tools like Reclaim.ai, Motion, and various scheduling assistants integrated into larger productivity suites. Users should research current alternatives to find a suitable replacement.