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Comparison · 2026
HARPA AI vs InstantKnow
HARPA AI vs InstantKnow: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: HARPA AI is freemium, InstantKnow is paid. Feature lists share 0 overlapping items across the two listings.
freemium
AI browser assistant for Chrome that brings chat, page-aware replies and web automation into your everyday browsing.
VS
paid
Website change monitoring tool that tracks pages, compares versions, and sends alerts when content changes, with AI insights on each change.
Side-by-side
| Attribute | HARPA AI | InstantKnow |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | freemium · $13.2 | paid · $6.93 |
| Votes | 0 | 0 |
| Category | AI Agent | AI Assistant |
Features checklist
| Feature | HARPA AI | InstantKnow |
|---|---|---|
| 50 AI command runs | ||
| vision | ||
| agent and page-aware messages total | ||
| 2 web automations | ||
| 2 custom commands | ||
| 3 in 1 package: GPT-4o | ||
| Claude 3.5 | ||
| API Key models | ||
| Data not used for training | ||
| no hourly rate limits | ||
| faster than ChatGPT Plus | ||
| Edit predefined commands | ||
| Website checker for monitoring changes | ||
| comparing versions | ||
| and automating alerts |