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Kern vs HARDER

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

Kern compared with HARDER
DetailKern logo KernHARDER logo HARDER
What it doesThe to-do app you share with your AI Challenges with photo proof, pre-written steps and a built-in comeback
StageMVP Startup
FoundedNot given 2026
Based inNL PL
Pricing modelNot given Freemium
PricingNot given Free plan includes 5 personal challenges per month, 5 private challenges per month, 1 public challenge per month, 1 public with approval challenge per month, and 1 extra space. Premium plan costs $7.99 per month (or annual pricing available) and includes unlimited personal, private, and public chall
Key features
  • Claude AI integration for reading and changing tasks
  • Voice input to add or modify tasks
  • AI-generated next steps with actionable buttons
  • Research with sources
  • Quick Entry on Mac to capture pages and emails
  • Spaces and sections for organizing tasks
  • Subtasks with progress tracking
  • Repeating tasks
  • Offline sync between iPhone and Mac
  • Data export and deletion
  • Pre-written daily steps for every challenge
  • Photo, text, or Apple Health proof verification
  • Automatic comeback system after missed days
  • 200+ ready-made challenges across multiple categories
  • Personal, private, or public challenge visibility
  • Offline functionality with sync
  • Space profiles and social community
What makes it different
  • Chat with Claude inside individual tasks while still checking them off in the app
  • Tasks automatically suggest next steps and provide one-tap actions
  • Seamless Mac integration with window capture and menu bar control
  • Never keeps window screenshots and no ads or tracking
  • Pre-written daily steps eliminate decision fatigue and executive function burden
  • Missing a day doesn't reset progress—you pick up where you stopped
  • Proof-based accountability that creates genuine evidence, not just checkboxes
  • Automatic health data verification eliminates manual proof entry
  • Join anytime without waiting for a challenge start date
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)Not checked yet no change since last check4 no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)140
Referring domains (Majestic)30

5 details filled in for both companies.

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