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Perry the Prompter vs Diffsift

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

Perry the Prompter compared with Diffsift
DetailPerry the Prompter logo Perry the PrompterDiffsift logo Diffsift
What it doesHelp your AI understand you. AI code review that runs locally on your machine
StageNot given Not given
FoundedNot given Not given
Based inDE GB
Pricing modelFreemium Paid
PricingFree: €0 (5 improvements a week, 2 question rounds a week, access to all seven chat apps, no account needed). Pro, monthly: €4.99/month or €59.88/year (unlimited improvements, more thorough model, history and prompt library, profile synced across computers). Students: 30% discount (€3.49/month bille Personal: $59 (one-time). Team: $119 per seat (minimum 2 seats, one-time). Renewal: 50% of original price ($29 personal / $59 per team seat) for 12 months of updates.
Key features
  • Rewrites rough prompts into clear, structured versions
  • Works across seven AI chat apps
  • Personalized profile for tone and detail preferences
  • Leaves blanks instead of guessing missing details
  • Prompt history and library for Pro users
  • Profile syncs across multiple computers
  • Proactive review inbox with Windows notifications
  • Multi-pass review for large PRs
  • Evidence-linked findings
  • Review profiles for different focus areas
  • Review history stored locally
  • Supports local and external model providers
  • Azure DevOps and GitHub integration
  • Encrypted credential storage
  • Offline license activation
What makes it different
  • Works with seven AI chat apps at once, not just ChatGPT
  • Runs on paid-tier Google Gemini, which does not train on prompts
  • Built in Germany with GDPR privacy from the start
  • Free plan with no account required to start
  • No code leaves your machine by default with local models
  • One-time purchase with perpetual fallback license
  • First-class Azure DevOps support
  • No telemetry or vendor lock-in
  • Tested with real models at actual performance speeds
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)2 +2 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)1314
Referring domains (Majestic)12

6 details filled in for both companies.

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