Made for cold emailers who want more warm leads.
Your inbox is full of leads you're ignoring.
Get more warm leads from the emails you're already sending, with signal detection, automatic campaigns and SimilarContact AI replies.
Zero promptsZero list buildingZero babysitting
Works with Instantly and EmailBison. 30-day free trial. Cancel anytime.
Real Results After Using SimilarContact
Every campaign creates the next opportunity.
Your campaigns generate replies. Those replies generate signals. Those signals generate new prospects. Those prospects become new campaigns. And the cycle keeps going, so your inbox becomes a self replenishing source of warm leads.
- 1
Your existing campaigns
- 2
Inbox signals
- 3
New prospects
- 4
New automated campaigns
↻ The cycle repeats automatically
How it works
1. Connect your inbox
Connect Instantly or EmailBison. No CSVs, no prompts, no complex workflows. Choose native contact collection and verification or use your own keys. Both services are required for new accounts.
2. We find the opportunities
SimilarContact finds inbox signals. SimilarContact AI gives eligible lukewarm conversations another chance to become warm leads, without replying to existing warm leads or opt-outs.
3. New campaigns launch automatically
The system sources bonus leads and launches fresh, targeted campaigns around those exact signals.
4. The engine keeps getting smarter
SimilarContact AI learns from similar conversations in your workspace. New signals shape new campaigns, while eligible AI replies help create more warm leads for your team.
AI Replies
Handles familiar conversations automatically.
Signal Detection
Finds new opportunities hiding in inbox activity.
Autonomous Campaigns
Turns those opportunities into new prospects and campaigns.
SimilarContact AI has one goal: more warm leads from overlooked lukewarm conversations. It never replies to existing warm or interested leads, unsubscribes or opt-outs.
Set it up once. It keeps working.
SimilarContact doesn't wait for you to find new lists or tell it what to do. It watches your inbox, learns from your existing outreach, discovers new opportunities and builds campaigns around them.
New replies create new signals. New signals create new campaigns. SimilarContact AI handles eligible overlooked conversations to help create more warm leads, while your team keeps existing interested leads and opt-outs stay untouched.
No daily tasks. No prompts.
Your inbox is full of untapped opportunities.
Your campaigns should generate leads beyond the original list. SimilarContact Signals land in your inbox every day, and this is the engine that activates them autonomously.
It turns those opportunities into new campaigns, continuously generating bonus leads from the outreach you're already doing. Think of it as getting more out of every email you send.
Your autonomous lead engine
Inbox signals, automatic campaigns and SimilarContact AI work toward one goal: more warm leads. AI only handles eligible lukewarm conversations, never existing warm leads or opt-outs.
It gets smarter every day
SimilarContact AI learns from similar conversations in your own workspace to craft more relevant replies. No training prompts, and no learning from another customer's inbox.
More opportunities from every campaign
The longer SimilarContact runs in the background, the more relevant conversations it can create, which can help your deliverability over time. Results vary and nothing can guarantee sender reputation.
Your keys or native services. Your campaigns.
Use native integrations, your own contact data and verification keys, or one of each. We operate your campaigns, not a data marketplace. More sending can create more signals.
20 seconds to a self running lead engine.
- 1. Connect your Instantly or EmailBison API key.
- 2. SimilarContact analyzes your existing inbox activity.
- 3. Your first signal driven campaigns launch automatically as soon as leads are ready.
That's it. No uploading lists, writing prompts or managing another campaign platform.
Get more out of the contacts you already collect and the emails you already send.
Connect API Key & Launch FreeUse my own API keys for contact data and email verification. Plans start at $49/mo; your providers bill their usage separately.
Contact Data Provider
Email Verification Provider
Before you start: select Contact Data and Email Verification above.
Choose your provider for each API key you have. Missing a key? Choose “I Don't Have” and we'll include the native service in your plan price.
Solo Unlimited
$49/mo
Unlimited Signals for Your Company
- Automatically learned AI replies, subject to safe activation
- Unlimited signal discovery, subject to monthly usage limits.
- Automated signal driven campaigns
- 1 company workspace
- Instantly or EmailBison
- Solo Unlimited Fair Use: 2,500 actions/mo, 1,000 campaigns
Your trial is waiting on your Contact Data and Email Verification provider selection.
Card required, cancel anytime
Agency
$149/mo
Unlimited Signals for up to 5 Client Workspaces
- Automatically learned AI replies, subject to safe activation
- Unlimited signal discovery, subject to monthly usage limits.
- Automated signal driven campaigns
- Up to 5 client workspaces
- Enter keys or pick from your master key
- Agency Fair Use: 25,000 actions/mo, 5,000 campaigns
Your trial is waiting on your Contact Data and Email Verification provider selection.
Card required, cancel anytime
Agency Ultra
$299/mo
Unlimited Signals for up to 50 Client Workspaces
- Automatically learned AI replies, subject to safe activation
- Unlimited signal discovery, subject to monthly usage limits.
- Automated signal driven campaigns
- Up to 50 client workspaces
- Enter keys or pick from your master key
- Agency Ultra Fair Use: 50,000 actions/mo, 10,000 campaigns
Getting started is waiting on your Contact Data and Email Verification provider selection.
Paid plan, no free trial
Agency Enterprise
$699/mo
Unlimited Signals for up to 1,000 Client Workspaces
- Automatically learned AI replies, subject to safe activation
- Unlimited signal discovery, subject to monthly usage limits.
- Automated signal driven campaigns
- Up to 1,000 client workspaces
- Enter keys or pick from your master key
- Agency Enterprise Fair Use: 250,000 actions/mo, 50,000 campaigns
Getting started is waiting on your Contact Data and Email Verification provider selection.
Paid plan, no free trial
SimilarContact AI replies
Overlooked replies.
New warm leads.
SimilarContact AI learns from similar conversations you've had in your workspace to craft personalized replies. Find the right contact. Answer known questions. Give a conversation you might have ignored another chance, without a training prompt.
One goal: more warm leads
- 01
Recognize the conversation
Learns from similar discussions in your own workspace, not another customer's inbox.
- 02
Keep the door open
Asks for the right contact or answers a familiar question when the facts are known.
- 03
Leave the warm lead to you
When interest appears, your team takes it forward. AI does not reply to already warm leads.
Jordan Taylor
Prospect reply
I'm not the person who handles this. Our operations team might be a better fit.
Alex Morgan
Reply prepared by SimilarContact AI
Thanks for pointing me in the right direction, Jordan. Who on the operations team would be the best person to reach out to?
Alex Morgan
Jordan Taylor
New opportunity
I've checked with our team. This is something we'd like to explore. Can we set up a call?
Interest detected. Your team takes it from here.
Your warm leads stay yours.
AI never replies to warm or interested leads, unsubscribes or opt-outs. Unknown answers and already handled conversations also stay untouched. Replies only send when safe handling checks pass. The example is illustrative, not a guaranteed result.
More from every email
SimilarContact Daily Signals Calculator
Your sending volume. Your reply rate. Your potential for more warm leads.
Your daily outreach
Potential signals per day
48.6
Illustrative range: 24.3 to 72.9 per day
- Emails per day
- 5,000
- Expected replies per day
- 150
Based on early aggregate activity, counting multiple opportunities from a reply where applicable. Assumes paid campaigns are live and required services are working. Illustrative range, not a guarantee or statistical confidence interval. Signals are opportunities, not guaranteed leads or meetings. Your offer, reply quality, availability and plan limits affect results. Historical backfill and additional paid opportunities are not included in this estimate.