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Day vs BuildFerry

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

Day compared with BuildFerry
DetailDay logo DayBuildFerry logo BuildFerry
What it doesOne app. Every platform. All Day. Install iOS builds on any iPhone with one link
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelOpen source Freemium
PricingNot given Free: $0 forever (1 app, 2 stored builds per app, builds up to 200 MB). Solo: $12/month (5 apps, 10 stored builds per app, builds up to 1 GB, or $120/year with two months free). Pro: $29/month (20 apps, 30 stored builds per app, builds up to 2 GB, or $290/year with two months free).
Key features
  • 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
  • UDIDs collect automatically via one-time profile approval in Safari
  • Cloud signing with no Mac or Xcode required
  • Approval controls before testers can install
  • PIN, expiry date and auto-approve options for share links
  • Real certificate profiles showing Verified status in iOS
  • Displays your current iPhone registration count against Apple's 100-device limit
  • Encrypted Apple key stored at rest and deleted after each signing job
  • One permanent share link per app that works for all new testers
  • Builds up to 1 GB on Solo and 2 GB on Pro plans
What makes it different
  • 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
  • No UDID hunting required; testers approve with one tap in Safari
  • One link per app stays live and re-signs automatically for new testers, unlike services that require rebuilding
  • Direct iOS installation from Safari with no TestFlight app or Beta App Review delay
  • Auto-registers new device UDIDs and re-signs builds instantly in the cloud
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)29 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)10
Citation Flow (Majestic)250
Referring domains (Majestic)290

4 details filled in for both companies.

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