ListKit vs Ocean.io: Data, Pricing, and the Better Pick
ListKit and Ocean.io aren't really competitors - they solve different slices of the same problem. One is a lookalike engine that finds companies similar to your best customers. The other handles more of the list-building workflow from search through exporting contacts. That distinction matters more than the feature lists suggest, and we've spent time digging into both to figure out where each one actually delivers.
30-Second Verdict
ListKit wins if you want a single platform for company search, contacts, and outbound-friendly workflows.
Ocean.io wins if you already have a contact enrichment and verification tool and specifically need AI-powered lookalike company discovery.
Skip both if email accuracy is the non-negotiable. Prospeo delivers 98% verified emails at roughly $0.01 each - neither ListKit nor Ocean.io matches that accuracy or cost.
What Each Tool Does
Ocean.io calls itself "the only Lookalike API for companies and people." You feed it your customer list, and it finds similar companies using 40+ attributes. The API is the real product - the platform wraps around that lookalike engine. Fair warning: there's a learning curve for the advanced features, and browsing costs money at 0.2 credits per search result, before you even pull contact data.
ListKit takes a broader approach. Its AI Company Search lets you describe your ideal prospect in plain English and generates targeted lists from that prompt. Contacts run through a Triple-Verification Engine before export, and ListKit also includes intent data with daily refreshes. For teams that want one tool instead of three, it covers more ground out of the box.
Feature-by-Feature Comparison
| Feature | ListKit | Ocean.io | Edge |
|---|---|---|---|
| Core approach | AI search + contacts | Lookalike API | ListKit (broader) |
| Search method | Plain-English prompts | Customer lookalikes | Ocean.io (if you have a strong customer list) |
| Database size | Not publicly disclosed | Not publicly disclosed | Tie |
| Email verification | Triple-verified | Verified (1 credit) | ListKit |
| Phone numbers | Includes mobile/direct dials | 10 credits / $0.64 each | ListKit |
| Intent data | Yes (daily refresh) | Not prominent | ListKit |
| CRM integrations | CRM integrations | HubSpot, Pipedrive, Salesforce (custom/enterprise) | Ocean.io |
| Chrome extension | Yes | Yes | Tie |
| GDPR compliant | Yes | Yes | Tie |
| API access | Yes | Yes | Tie |
| G2 rating | 4.7/5 (388 reviews) | 3.1/5 (12 reviews) | ListKit |
ListKit covers more of the outbound workflow end-to-end. Ocean.io's lookalike search is genuinely unique, but you'll often pair it with a separate tool for verification and sequencing.
Ocean.io charges $64 per 1,000 emails and burns credits just browsing. ListKit runs ~$48. Prospeo delivers 98% verified emails at ~$10 per 1,000 - with a 7-day data refresh cycle that keeps records current while competitors lag 6 weeks behind.
Stop overpaying for data that bounces. Start at $0.01/email.
Pricing Breakdown
Here's the thing about Ocean.io's pricing: three sources give you three different numbers. The official site shows a credit-based model with a minimum of 9,000 credits at $0.064 per credit. OMR lists plans from $79/month to $475/month. FullEnrich shows yearly pricing starting at $790/year for a Starter tier, $2,990/year for Professional, and $800-$2,000/month for Enterprise. Our best estimate: expect $1k-$6k/year for small teams, $10k+ for larger ones. Credits expire after 12 months.
And remember - Ocean.io charges 0.2 credits just to browse search results. You're paying during research, not just at export time, even though exports themselves are free and you only pay for verified emails and phone numbers.
ListKit's pricing is cleaner. Free tier gets you 100 credits with unlimited users. Pro runs $97/month for roughly 2,000 credits. (If you want the full cost math, see ListKit pricing.)
| Platform | Cost / 1,000 Emails | Notes |
|---|---|---|
| Ocean.io | $64 | 1 credit per verified email, 0.2 per search result |
| ListKit | ~$48 | $97/mo for ~2,000 credits |
| Prospeo | ~$10 | ~$0.01/email, 75 free/mo |
If your average deal size sits below $15k, Ocean.io's credit math doesn't pencil out. You'll burn through credits just searching before you ever export a list. ListKit gives you more runway per dollar.
What Users Say
ListKit - 4.7/5 on G2 (388 reviews), 4.2/5 on Trustpilot (218 reviews)
- Pros: Easy to use, solid data quality, outbound-friendly workflows
- Cons: Billing confusion shows up in Trustpilot reviews; occasional verification discrepancies when cross-checking with other tools
Ocean.io - 3.1/5 on G2 (12 reviews), 3.2/5 on Trustpilot (1 review)
- Pros: Lookalike precision is praised when the setup is done well
- Cons: Negative G2 themes include data inaccuracy, outdated records, export limitations, and expensive credits
The review volume gap speaks for itself. We've seen similar skepticism on Reddit, where one practitioner thread about Apollo estimated almost 30% of its data is obsolete. That general "data freshness" problem is exactly why email verification matters no matter which discovery tool you pick.
Who Should Pick Which
Use Ocean.io if you already have a solid enrichment and verification tool and specifically need lookalike company discovery. You know your ICP cold, you have a strong customer list, and you want an AI engine to find matching accounts. Pair it with a verification tool before you send anything.
Use ListKit if you want one platform for company search, contact data, and outbound workflows. You're running outbound and don't want to stitch together three tools to get from prospect to sent email.
Skip both if your bounce rates are above 5% and accuracy is the priority. Bad data tanks your sequences regardless of how clever the search is. (If you’re troubleshooting, start with email bounce rate.)
A Better Option for Accuracy
Look - if accuracy is the dealbreaker, and it should be if you're doing cold email at scale, neither of these tools is built for it. Prospeo handles verified emails and phones at a fraction of the cost: 98% email accuracy across 300M+ profiles, a 7-day data refresh cycle while the industry average sits around six weeks, and pricing around $0.01 per email. No annual contracts, no credit minimums, no sales calls required. Teams using Prospeo report bounce rates under 4%, and the platform includes 30+ search filters, intent data tracking 15,000 topics, and native integrations with Salesforce, HubSpot, Instantly, and Clay.
Neither ListKit nor Ocean.io publicly discloses database size. Prospeo gives you 300M+ profiles, 30+ search filters, and intent data across 15,000 topics - no credit minimums, no annual contracts, no sales calls required.
Teams using Prospeo report bounce rates under 4%. See why 15,000+ companies switched.
FAQ
Is Ocean.io worth the price?
For most outbound teams, no. The lookalike search is unique, but a 3.1/5 on G2 from only 12 reviews and recurring data accuracy complaints make it risky. You'll spend $576 before sending a single email with that 9,000-credit minimum, and search browsing eats credits too. Test carefully.
Does ListKit verify emails?
Yes - ListKit uses a triple-verification process, and many reviews mention solid deliverability. Some Trustpilot reviewers report discrepancies when cross-checking. Running a secondary verification pass before launching campaigns is always smart regardless of your data source.
Is there a cheaper alternative to both?
Prospeo delivers 98% email accuracy at roughly $0.01 per email with a free tier of 75 emails per month. No annual contracts, no credit minimums, and data refreshes every 7 days. It's the clear pick for accuracy-first teams on a budget.
Can I use Ocean.io's lookalike search with another data provider?
Yes, and most power users do exactly that. Use Ocean.io to identify target accounts, then enrich contacts through a dedicated verification tool. This avoids Ocean.io's expensive per-contact credit costs while keeping the lookalike discovery advantage.