Deep Work Plan vs Quartz: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Deep Work Plan and Quartz — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Deep Work Plan
Dailybot
Open-source, spec-driven methodology that turns any repo into a harness so coding agents finish long-horizon work.
Key features
- Spec-In-Repo Planning: Writes atomic tasks, acceptance criteria, validation gates, and resumable state directly into the repository as a durable plan.
- Drift Resistance: Keeps agents from losing context or abandoning multi-hour tasks by anchoring them to the plan as the source of truth.
- Resumable Long Runs: State survives context resets so any agent can pick up exactly where the previous one stopped.
- DWP-Verify: Produces an objective pass/fail report against the spec so AI-first completion is verified, not assumed.
- Agent-Agnostic: Works with Claude Code, Codex, Cursor, or any coding agent, with no lock-in.
- Open Source: Released under the MIT license and free to adopt in any repository.
Best for
- Large Migrations: Driving multi-file migrations to completion without the agent drifting or stalling.
- New Subsystems: Building a new subsystem against explicit acceptance criteria and validation gates.
- Cross-File Refactors: Coordinating refactors across dozens of files with a durable, resumable plan.
- Verified Delivery: Producing an objective pass/fail report to confirm work meets the specification.
Quartz
datarockets
AI-native email client for Mac that sorts your inbox and drafts replies in your voice, running entirely on-device.
Key features
- On-Device AI: Inbox sorting and reply drafting run locally on Apple Silicon, so email is never sent to external AI providers.
- Importance-Based Triage: Auto-categorizes every message by importance you define and the system learns over time, surfacing what matters and collapsing FYI, Icebox, and Noise.
- Voice-Matched Drafts: Learns your writing style, sender relationship, and thread context to draft replies that sound like you rather than a template.
- Local Encryption: Mail is encrypted on your device with keys only you hold, and the company has no servers that can read it.
- Gmail Integration: Connects to Gmail accounts and has been independently audited under Google's Cloud Application Security Assessment.
Best for
- Inbox Overload: Professionals who get high message volume let Quartz triage by importance so they focus only on mail that needs attention.
- Privacy-Sensitive Email: Users who handle confidential correspondence keep AI processing fully on-device instead of uploading mail to cloud AI services.
- Faster Replies: Drafting routine responses in the user's own voice to cut time spent writing repetitive email.