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Hronaut vs Day

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Hronaut compared with Day
DetailHronaut logo HronautDay logo Day
What it doesA separate, visible browser for every project your coding agent touches One app. Every platform. All Day.
StageStartup Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree trial Open source
Pricing10-day free trial (no credit card required), then $4/month or $24/year per named user. Annual plan is 50% off the $48 cost of twelve monthly payments. Not given
Key features
  • Isolated workspace per project with separate cookies and sign-ins
  • Watch, pause, and take over agent actions at any time
  • Test local applications and localhost environments
  • Support for signed-in applications and session handoff
  • Parallel agent execution with isolated workspaces
  • Resume after agent disconnection with workspace persistence
  • Local Web3 wallet interaction and approval
  • Side-by-side split view for comparing pages
  • Cross-platform support: Windows, macOS, Linux
  • Up to three active devices per subscription
  • Native UI toolkits (AppKit, UIKit, Material Components, WinUI, GTK, Qt)
  • Shared Rust codebase for interface and logic
  • Localization with Fluent catalogs
  • UI testing with DayScript walkthroughs
  • Automated packaging and app store submission preparation
  • Accessibility annotations with native integration
  • Platform-specific extensions in Cargo crates
  • VS Code extension for development workflow
  • Crash reporting integration
  • Reusable components across apps
What makes it different
  • Your personal Chrome stays completely private and separate from agent operations
  • Local-first design with profiles stored on your computer
  • Verifiable releases with SHA-256 hashes and GitHub build attestations
  • Source-available under a subscription license
  • No credit card required for 10-day trial
  • Single Rust codebase compiles to native machine code for each target
  • Platform-native appearance and behavior without custom rendering
  • Keep existing Rust libraries unchanged and reuse across platforms
  • Full open source framework under MPL-2.0 with inspectable and modifiable code
  • Unified CLI and test format for all platforms and builds
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)12 −1 (down) since last check29 no change since last check
Trust Flow (Majestic)21
Citation Flow (Majestic)3025
Referring domains (Majestic)3029

4 details filled in for both companies.

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