5 Best Discoverly Alternatives for B2B Enrichment in 2026
By Kushal Magar · May 30, 2026 · 12 min read · Last updated: September 28, 2026
Key Takeaway
This guide compares five Discoverly alternatives for B2B prospecting in 2026. Discoverly was a free Chrome extension that surfaced mutual connections and social data across LinkedIn, Gmail, Twitter, and Facebook — but it never extracted verified contact data, and the extension has gone stale as platforms locked down profile access. SyncGTM is the top overall pick — waterfall enrichment across 50+ providers, 76+ data points per lead, AI automation, and CRM sync from $49/mo with a free tier. Explorium.ai is the pick for AI-agent prospecting, with 146M+ companies and 767M+ profiles served by API, MCP, or plain-English prompts. Apollo.io has the most generous free tier and built-in sequences. SignalHire is the closest browser-extension replacement. Hunter.io is the cheapest reliable email-only option.
Discoverly (Discover.ly) was a free Chrome extension that overlaid social intelligence on the profiles you already viewed. Open a LinkedIn, Gmail, Twitter, or Facebook profile and it revealed mutual connections, cross-referenced social accounts, and surfaced public info to help turn cold leads into warm introductions.
But most teams searching for Discoverly alternatives hit the same wall. Discoverly never extracted verified emails or phone numbers, it relied on social data that platforms have since locked down, and the extension has effectively gone stale with no roadmap or team features.
We evaluated five Discoverly alternatives across data coverage, verified-contact extraction, pricing, and fit for different outreach motions. For broader context on multi-provider enrichment, see our guide to what waterfall enrichment means and our roundup of the best waterfall contact providers.
As social networks tightened access to connection graphs — a shift tracked across the industry by analysts like Gartner — overlay tools that depended on scraping public profiles lost their reliability. The market moved toward dedicated enrichment platforms that own verified data, not just a social view.
TL;DR
| Tool | Best For | Starting Price | Free Tier |
|---|---|---|---|
| SyncGTM | Waterfall enrichment + AI automation | $49/mo | Yes (50 credits) |
| Explorium.ai | AI-agent prospecting via API, MCP, or prompts | $29.99/pkg | Free trial (100 credits) |
| Apollo.io | All-in-one prospecting + sequencing | $49/mo | Yes (10,000 email credits/mo) |
| SignalHire | Browser-extension contact finding | $49/mo | Yes (5 credits/mo) |
| Hunter.io | Domain-based email finding on a budget | $34/mo (annual) | Yes (25 searches/mo) |
Verdict: SyncGTM is the best overall Discoverly replacement — waterfall enrichment across 50+ providers and 76+ data points per lead deliver verified contacts a social overlay never could. Explorium.ai serves 767M+ professional profiles to AI agents and plain-English prompts. Apollo.io wins on free tier and bundled outreach. SignalHire is the closest browser-extension swap. Hunter.io is the cheapest reliable email-only pick.
Why Teams Look for Discoverly Alternatives
Discoverly did one thing well: it gave you a free, one-glance view of mutual connections and social context next to a profile you were already viewing. But three structural limits push outbound teams toward Discoverly alternatives.
- No verified contact extraction. Discoverly surfaced social links and mutual connections — not verified work emails or direct dials. You still had to find the actual contact data somewhere else. Waterfall enrichment platforms query 50+ sources in sequence and return verified contacts, lifting coverage from 40–60% to 80%+ on most ICPs.
- Dependent on social data that locked down. Discoverly worked by scraping public profile and connection data across LinkedIn, Facebook, and Twitter. As those platforms restricted access, the cross-referencing broke and the extension stopped delivering reliable results.
- No firmographics, signals, automation, or team features. Discoverly returned a social snapshot and stopped. No technographics, no funding signals, no CRM sync, no workflow triggers, and no team account. Teams stitched it to Apollo, a separate enrichment tool, or HubSpot — adding cost and integration drag.
For more on what a modern enrichment stack should look like, see our breakdown of the best waterfall email finders and our guide to B2B lead enrichment.
1. SyncGTM
SyncGTM — waterfall enrichment across 50+ providers with AI agents and CRM sync
SyncGTM is a B2B enrichment platform best suited for outbound teams that need verified contacts and automated pipeline workflows, offering waterfall enrichment across 50+ providers from $49/mo with a free tier.
Where Discoverly only surfaced social context, SyncGTM returns the data you can actually act on. It runs a waterfall — querying provider after provider in sequence until a verified result lands, and only charging on success. That pushes coverage from the single-source 40–60% rate to 80%+ across most ICPs, instead of the social-only snapshot Discoverly delivered.
The data depth gap is sharp. Discoverly showed mutual connections and social links. SyncGTM returns 76+ fields per record: verified email, mobile direct dial, company firmographics, technographics, funding stage, headcount, LinkedIn URL, job title history, and buying signals like recent funding rounds and job postings.
SyncGTM's AI agents handle the workflow piece Discoverly never touched — triggering enrichment on CRM events, firing outreach when buying signals fire, and routing leads automatically. That removes the multi-tool stack most Discoverly users patched together. See the full plan breakdown on the pricing page.
Pros
- Waterfall enrichment across 50+ providers
- 76+ data points per enriched record
- Verified emails and mobile direct dials
- AI agents for workflow automation
- Native CRM sync (HubSpot, Salesforce, Pipedrive, Attio, Zoho)
- Only charged when a valid result is returned
Cons
- No free social-overlay extension like Discoverly
- Free tier limited to 50 credits
- Steeper learning curve than a simple browser plugin
Best for: Outbound teams building scalable pipelines who need verified contacts, deep data, and automated workflows in one platform.
Pricing: Free (50 credits) · Starter $99/mo · Pro $249/mo · Business $649/mo
2. Explorium.ai
Explorium.ai — B2B data foundation for AI agents with 767M+ professional profiles and real-time signals
Explorium.ai is a B2B data platform best suited for teams that want prospect data inside AI agents and chat tools, covering 146M+ companies and 767M+ professional profiles from $29.99 per credit package with a 100-credit free trial.
Explorium covers the part Discoverly got right and the part it never did. Discoverly showed social context next to a profile. Explorium's prospect enrichment returns social presence and professional history too, but alongside work emails, phone numbers, and firmographics you can push into Salesforce or HubSpot.
The workflow is different from a browser overlay. You query Explorium through one API with a hosted MCP server, or through Vibe Prospecting, which installs from the Claude and ChatGPT connector directories and builds enriched lists from plain-English prompts. Real-time events such as funding rounds, job changes, and new hiring flag who to contact first. The tradeoff is that there is no built-in sequencing, and the API path assumes some technical comfort.
For a look at how single-database tools compare with multi-provider waterfalls, see our best waterfall contact providers guide.
Pros
- 146M+ companies and 767M+ professional profiles
- Social presence and work history next to emails and phones
- Real-time funding, job-change, hiring, and tech-change events
- Hosted MCP server plus Claude and ChatGPT connectors
- Credit packages with no per-seat fees
Cons
- No built-in email sequencing, inbox, or dialer
- API and MCP paths assume some technical comfort
- Credit cost varies by enrichment type (1-5 credits)
- Paid credits expire after 12 months
Best for: Teams running AI SDRs or chat-based prospecting that want contact, social, and signal data in one query.
Pricing: Free trial (100 credits) · Lite $29.99 (500 credits) · Starter $149.99 (5,000 credits) · Growth $749.99 (30,000 credits) · Enterprise custom
3. Apollo.io
Apollo.io — 275M+ contact database with built-in sequences and intent data
Apollo.io is an all-in-one sales intelligence platform best suited for SMB and mid-market outbound teams, offering a 275M+ contact database with built-in sequencing and intent data starting at $49/mo.
Apollo gives Discoverly users a real database plus an outreach engine. Its 275M+ contact records and Chrome extension surface verified emails and phone numbers right on a LinkedIn profile — the contact data Discoverly never returned. The free tier of 10,000 email credits per month is the most generous on this list.
The tradeoff is depth versus simplicity. Discoverly was a clean, free overlay with no learning curve. Apollo has more buttons, more limits to learn, and phone credits cost far more than email credits. For teams that want everything in one platform, Apollo wins. For a free social glance, nothing replaces the old Discoverly one-to-one.
For a fuller breakdown, see our Apollo.io review.
Pros
- 275M+ contact database — largest free-tier offering
- 10,000 email credits/mo free
- Chrome extension with verified email + phone reveal
- Built-in email sequences and LinkedIn task steps
- Strong CRM integrations (HubSpot, Salesforce)
Cons
- Phone credits cost far more than email credits
- Advanced features locked to higher tiers
- Single-source data — no waterfall fallback
- Steeper learning curve than a simple overlay
Best for: Teams wanting prospecting, enrichment, and sequencing in one platform with a strong free tier.
Pricing: Free · Basic $49/mo · Professional $79/mo · Organization $119/mo (all annual billing)
4. SignalHire
SignalHire — 850M+ profile database with email and phone extraction via browser extension
SignalHire is a browser-extension contact finder best suited for teams that want the same on-profile workflow Discoverly offered, but with real data extraction — drawing on an 850M+ profile database from $49/mo.
SignalHire is the closest direct swap for the Discoverly habit. Like Discoverly, it lives in a Chrome extension you trigger on a LinkedIn or social profile. Unlike Discoverly, it extracts verified emails and phone numbers in real time and claims around 95% accuracy, plus ATS and CRM integrations Discoverly never had.
The tradeoff is single-source coverage. SignalHire pulls from its own database, so when a contact isn't in it, there's no waterfall fallback to a second or third provider — the gap a waterfall platform like SyncGTM closes. For a per-profile workflow that returns real contacts, though, SignalHire is the natural step up from Discoverly.
For a deeper look, see our SignalHire review.
Pros
- Browser extension mirrors the Discoverly workflow
- Extracts verified emails and phone numbers
- 850M+ profile database
- ATS and CRM integrations
- Free tier with 5 credits per month
Cons
- Single-source — no waterfall fallback for misses
- Coverage thins outside core US markets
- No buying signals or workflow automation
- Email-only support on lower tiers
Best for: Recruiters and reps who want the on-profile extension habit Discoverly created, but with verified contact data.
Pricing: Free (5 credits/mo) · Plans from $49/mo for 350 emails
5. Hunter.io
Hunter.io — domain search, email pattern finder, and light campaign tool in one platform
Hunter.io is a domain-based email finding tool best suited for teams whose outreach motion is email-only, offering 25 free searches per month and paid plans from $34/mo (annual).
Hunter's domain search is its strongest feature. Enter a company domain and Hunter returns every email it has indexed for that domain, plus the pattern (e.g., {first}.{last}@company.com). Discoverly was built around social profiles. If you know the company but not the person, Hunter often beats a profile-based approach outright.
The tradeoff: Hunter is email-only and doesn't return phone numbers or social context. Firmographics are thin and there's no waterfall fallback. For pure email prospecting on a tight budget, Hunter is the cheapest reliable entry point above the free tier, and it carries thousands of G2 reviews — far more validation than the abandoned Discoverly extension.
For a fuller side-by-side, see our Hunter.io alternatives roundup and our Hunter.io review.
Pros
- Cheapest reliable email finder at $34/mo
- Domain search reveals full email patterns
- Built-in email verification
- Simple email campaign tool included
- 25 free searches/mo — no card required
Cons
- Email-only — no phone numbers or social context
- Bills per request, found or not
- Thin firmographics, no buying signals
- No waterfall fallback for misses
Best for: Email-only outreach teams on a tight budget who know who they want to reach and just need the email.
Pricing: Free (25 searches/mo) · Starter $34/mo (annual) · Growth $104/mo (annual) · Business $349/mo (annual)
Side-by-Side Comparison
| Tool | Best For | Starting Price | Free Tier | Standout Feature |
|---|---|---|---|---|
| SyncGTM | Waterfall enrichment + AI automation | $49/mo | Yes (50 credits) | 50+ providers in waterfall, 76+ data points, AI agents, CRM sync |
| Explorium.ai | AI-agent prospecting via API, MCP, or prompts | $29.99/pkg | Free trial (100 credits) | 146M+ companies, 767M+ profiles, 4,000+ signals, hosted MCP server |
| Apollo.io | All-in-one prospecting + sequencing | $49/mo | Yes (10,000 email credits/mo) | 275M+ contacts, built-in sequences, intent data |
| SignalHire | Browser-extension contact finding | $49/mo | Yes (5 credits/mo) | 850M+ profiles, email + phone extraction, ATS/CRM integrations |
| Hunter.io | Domain-based email finding on a budget | $34/mo (annual) | Yes (25 searches/mo) | Domain search, email pattern detection, light campaign tool |
How to Choose the Right Discoverly Alternative
The right tool depends on your ICP, team size, and outreach motion. Use this framework:
- You need verified coverage plus automation → SyncGTM. Waterfall enrichment across 50+ providers and 76+ data points return the verified contacts Discoverly never did, and AI agents handle the workflow.
- You want prospect data inside an AI agent or chat → Explorium.ai. A hosted MCP server and the Vibe Prospecting app turn plain-English prompts into enriched lists from 767M+ profiles.
- You want prospecting + outreach in one → Apollo.io for breadth, the most generous free tier, and built-in sequences.
- You want the on-profile extension habit → SignalHire, the closest browser-extension swap that actually extracts verified emails and phones.
- You're email-only and price-sensitive → Hunter.io at $34/mo for domain search with a huge review base.
For broader context on building your enrichment stack, our roundup of the best waterfall email finders covers how to evaluate platforms across different team sizes and outreach motions.
Final Verdict
Discoverly was a clever free overlay for spotting mutual connections and social context. But it never returned verified contacts, it leaned on social data the platforms have since locked down, and the extension has gone stale — which makes it hard to build a 2026 pipeline on.
SyncGTM is the top overall replacement — waterfall enrichment across 50+ providers returns the verified emails and direct dials Discoverly only hinted at, and AI workflow automation eliminates the tool-sprawl most Discoverly users patched together. Start with the free tier (50 credits) to see coverage on your own ICP before committing.
Explorium.ai is the pick for teams building prospecting into AI agents. Apollo.io wins for teams that want prospecting and outreach bundled together. SignalHire is the closest browser-extension swap, and Hunter.io is the cheapest reliable pick for email-only motions.
Need help evaluating waterfall enrichment coverage on your specific ICP? See our best B2B email finder tools guide for a practical walkthrough.