Reddit + Hacker News + X monitoring

Find the social posts where people are looking for your product

Sift monitors Reddit, Hacker News, and X for conversations where people need what you've built. Get notified via SMS or your dashboard with draft replies ready to post.

Get started freeSee how it works→

Monitoring where your audience already is

Reddit
Hacker News
X (Twitter)PRO
100+Founders trusted
70,000+Posts analysed per week
8,000+Opportunities surfaced per week

How it works

From setup to your first reply in minutes.

01

Describe your product

Tell us what you built in plain English. Sift suggests relevant keywords for Reddit, Hacker News, and X, then tailors its reply style to each platform's tone.

02

Review opportunities

Open your dashboard or check your SMS alerts. Each opportunity shows the original post, a relevance score, and a draft reply. One click copies the draft to your clipboard and opens the conversation — you're posting in seconds.

03

Never miss a conversation

Get SMS alerts for time-sensitive conversations. Sift keeps monitoring so you're always first to the posts that matter.

Features

AI finds the conversations. You decide which ones are worth joining.

Smart opportunity detection

Sift uses semantic search and AI scoring to find posts where your product genuinely helps — not just keyword matches. Every post is scored on relevance and buyer intent, so only genuine opportunities surface.

Relevance scoringIntent detection

Instant value on signup

Don't wait days for new posts to trickle in. Sift scans thousands of recent posts from your target communities, scores the best candidates, and surfaces opportunities you can act on right away.

Historical backfillImmediate opportunitiesNo cold start

AI-drafted replies

Every opportunity comes with two AI-drafted replies: one that's genuinely helpful with no product mention, and one that leads with value then naturally introduces your product. Every draft is yours to review, edit, and post on your terms.

Engage draftsPromote draftsPlatform-aware tone

Continuous monitoring

After backfill, Sift watches your target communities continuously. New posts are scored as they appear, and only the best opportunities reach you — no notification fatigue.

Real-time pollingSignal, not noiseSmart filtering

Two reply modes

Not every post needs a pitch. Sift knows the difference.

Engage

Build credibility first

When a post is relevant but not a natural promotion fit, Sift drafts a genuinely helpful reply — advice, experience, or discussion. No product mention at all. Building real credibility in communities means contributing value beyond your own product.

Example draft

“We ran into the same issue scaling our webhook pipeline. What worked for us was switching to a fan-out pattern with per-tenant queues — keeps backpressure from one client from affecting others. Happy to share more details if helpful.”

Promote

Mention when it fits

When the post is a strong fit — the author has a problem your product solves — Sift drafts a reply that leads with value, then mentions your product with honest disclosure.

Example draft

“This is a common pain point with invoice reconciliation. One approach: batch your matching jobs and run them async. Full disclosure — I built Ledgr which does exactly this, but the pattern works regardless of tooling.”

Ethical marketing, not growth hacking

Other tools post stealthy product mentions across dozens of threads. That gets you banned. Sift takes the opposite approach — help first, mention your product only when it genuinely solves someone's problem, and with honest disclosure. The result is real credibility, not a shadowbanned account.

Transparent

Always discloses — "I built this" or "I work on the team"

Platform-aware

Adapts tone for each platform. Founder-direct on HN, conversational on Reddit.

Human-in-the-loop

Sift drafts — you decide what to post and when. You always have the final say.

Pricing

Start free. Upgrade when you're ready.

Free
$0forever
  • 1 project
  • Up to 3 keywords per platform
  • 30-minute monitoring
  • Email notifications
  • AI-powered reply drafts
  • Relevance & intent scoring
Get started
Pro
$10/mo
  • Up to 5 projects
  • Up to 12 keywords per platform
  • 5-minute monitoring
  • SMS & email notifications
  • AI-powered reply drafts
  • Relevance & intent scoring
  • X (Twitter) monitoring
  • Priority support
Upgrade to Pro

FAQ

Common questions about Sift.

Does Sift post replies for me?+
No, and that's by design. AI-drafted replies are good most of the time, but sometimes you'll want to tweak the tone, add context, or skip one entirely. We think full control over what you post matters for your brand image and for ethical community participation. Sift drafts, you decide.
What platforms do you support?+
Sift monitors Reddit, Hacker News, and X (Twitter). Reddit and Hacker News are available on all plans, while X monitoring is a Pro feature. We're actively working on adding more platforms soon.
How quickly will I see opportunities?+
Within minutes. When you create a project, Sift immediately scans thousands of recent posts from your target communities and surfaces the best matches. After that, continuous monitoring picks up new posts as they appear.
How do I post a reply?+
Each opportunity has a one-click button that copies the draft reply to your clipboard and opens the original post in a new tab. Edit the draft if you want, paste it in, and you're done. The whole process takes seconds.
Can I try it before paying?+
Yes. The free plan includes 1 project, up to 3 keywords per platform, AI-drafted replies, and email notifications — no credit card required.
How is Sift different from other monitoring tools?+
Most tools auto-post stealthy product mentions across dozens of threads — a fast way to get banned. Sift takes the opposite approach: honest disclosure, platform-aware tone, and you always have the final say before anything gets posted.

Ready to join the conversation?

Set up in 5 minutes. Get your first opportunities today, not next week.

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