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last30days vs siift: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of last30days and siift — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

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last30days

mvanhorn

Free

An AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web, then synthesizes a scored, grounded brief.

Key features

  • Multi-Source Search: Searches Reddit, Hacker News, X, YouTube, TikTok, Polymarket, and the web in parallel.
  • Engagement Scoring: Ranks results by upvotes, likes, transcripts, and real-money Polymarket odds instead of editorial picks.
  • AI Judge Synthesis: An agent synthesizes all sources into a single grounded brief.
  • Broad Host Support: Installs in Claude Code, Codex, Cursor, Copilot, Gemini CLI, and 50+ Agent Skills hosts.
  • Zero-Config Start: Reddit, HN, Polymarket, and GitHub work immediately with no setup.
  • Setup Wizard: Unlocks X, YouTube, and TikTok sources in about 30 seconds.

Best for

  • Trend Research: Quickly understand what people are saying about a topic across social platforms.
  • Market Sentiment: Combine social engagement with Polymarket odds to gauge real sentiment.
  • Content Discovery: Surface the most-engaged posts and videos on a subject.
  • Competitive Intelligence: Track recent discussion of a product or company across communities.
  • Briefing Generation: Produce a single grounded summary for a question instead of manual searching.
View last30days details
siift logo

siift

siift

Freemium

An agentic AI operating system that helps founders map, validate and execute business strategy on one intelligent canvas.

Key features

  • Intelligent Business Canvas: A visual workspace that maps ideas, assumptions, actions and results into decision-ready filters so the whole business can be seen at once.
  • Living Memory System: A scalable agentic memory that learns as the business evolves and keeps context aligned across tools, data and teammates.
  • AI-Scored Validation: Automated, continuous research that grades assumptions into evidence so founders know what is validated and what is still risky.
  • Five-Stage Execution Loop: Guided progression through Ideate, Validate, Build, Go To Market and Scale, each with its own AI-driven workflow.
  • Safe Stack Automations: Human-in-the-loop actions across 80+ popular applications so approved work executes without leaving the canvas.
  • Shareable Workspaces: Collaborative views that let teammates, advisors and other stakeholders work from the same strategy context.
  • Proactive Next-Step Guidance: Personalized, iterative advice that surfaces the highest-leverage action rather than a generic checklist.
  • Credit-Based AI Usage: Monthly request credits scaled by plan and weighted by task complexity, with unlimited projects even on the free tier.

Best for

  • Idea Validation: De-risking a new business concept by turning founder assumptions into automatically researched, scored evidence before building.
  • Strategy Mapping: Turning a cloud of unstructured ideas into a visual mind-map that exposes blindspots across the business model.
  • Go-To-Market Planning: Iterating on sales and marketing with an AI-native loop that tests which channels actually produce revenue.
  • Product Prioritization: Helping product leaders decide what to build next based on verified market opportunities rather than intuition.
  • Scaling Diagnostics: Systematizing an existing business to surface its current growth constraints and reverse-engineer fixes.
  • Advisor Collaboration: Sharing a single live strategy workspace with co-founders, advisors and investors instead of static decks.
View siift details