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.
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. Paste your API key (20 seconds)
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 decode your inbox signals
SimilarContact scans the past 30 days of replies to look for actionable signals.
3. Autonomous campaign launch
The system sources bonus leads and launches fresh, targeted campaigns around those exact signals.
4. Continuous self optimization
As new replies roll in, SimilarContact spots emerging signals, spins up new campaigns and refines targeting while you focus on closing calls.
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. Campaign results help shape what happens next. While you're busy running your business, SimilarContact is finding your next batch of leads.
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
Nothing to babysit. It keeps reading your inbox, finds the warm leads hiding in replies and puts them to work while you're on a call.
It gets smarter every day
Every new reply teaches it more about what you sell and who responds, so new campaigns keep getting sharper.
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.
Solo Unlimited
$49/mo
Unlimited Signals for Your Company
- Unlimited opportunity discovery
- Automated signal driven campaigns
- 1 company workspace
- Instantly or EmailBison
- Solo Unlimited Fair Use: 2,500 actions/mo, 1,000 campaigns
Card required, cancel anytime
Agency
$149/mo
Unlimited Signals for up to 5 Client Workspaces
- Unlimited opportunity discovery
- 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
Card required, cancel anytime
Agency Ultra
$299/mo
Unlimited Signals for up to 50 Client Workspaces
- Unlimited opportunity discovery
- 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
Paid plan, no free trial
Agency Enterprise
$699/mo
Unlimited Signals for up to 1,000 Client Workspaces
- Unlimited opportunity discovery
- 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
Paid plan, no free trial
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.