Adapt.io vs Ocean.io: Honest Comparison (2026)
A 4.6-star rating across 2,789 reviews versus a 3.1-star rating across 12 reviews. That's not a close fight. In the Adapt.io vs Ocean.io matchup, the numbers tell one story - but the experience gap between these two platforms is even wider than the scores suggest.
30-Second Verdict
Adapt.io is the safer pick. It has 150M+ contacts and thousands of positive reviews backing it up. Ocean.io's AI-driven lookalike search is a clever concept, but user reviews consistently flag data quality problems - the one thing that can't be broken on a prospecting tool.
What Each Tool Does
Adapt.io is a straightforward B2B lead intelligence platform used by 500K+ customers. You get 150M+ contacts across 30M+ companies, a Chrome extension for pulling contact data from professional profiles and company websites, and credit-based plans that scale from free to custom. It's built for SDRs and marketers who need lists fast.
Ocean.io takes a different approach entirely. Instead of maintaining a massive static database, it uses AI to build lookalike audiences - feed it your best customers, and it finds similar companies using data aggregated from 16+ sources. The concept is smart. The execution, as we'll get into, is where things get shaky.
Pricing Compared
Adapt.io publishes pricing for its Free, Starter, and Basic plans. The Custom plan is quote-based.
| Plan | Price | Credits |
|---|---|---|
| Free | $0/mo | 25 emails |
| Starter | $49/mo | 500 emails |
| Basic | $99/mo | 1,000 emails + 100 phones |
| Custom | Talk to sales | API + extras |
Ocean.io Credits (yearly subscription rate)
| Item | Credit Cost | Approx. Cost |
|---|---|---|
| Verified email | 1 credit | ~$0.064 |
| Phone number | 10 credits | ~$0.64 |
| Search result | 0.2 credits | ~$0.013 |
Ocean.io's minimum subscription runs ~$576/year for 9,000 credits. For 1,000 verified emails plus 100 phone numbers, the credit-equivalent cost is roughly $128 - but you're still buying into that annual minimum regardless. Ocean.io includes unlimited seats, which sounds generous until you realize seats don't matter if the data bounces.
Neither Adapt.io nor Ocean.io offers intent data. Prospeo tracks 15,000 buyer intent topics, delivers 98% email accuracy, and refreshes every 7 days - not 6 weeks. At ~$0.01/email, you get 90% cheaper data than legacy providers with zero annual contracts.
Stop choosing between cheap data and accurate data. Get both.
Feature-by-Feature Breakdown
| Feature | Adapt.io | Ocean.io |
|---|---|---|
| Database | 150M+ contacts | 16+ aggregated sources |
| Chrome extension | Yes | Yes |
| Lookalike search | No | Yes (core feature) |
| CRM integrations | Salesforce, Outlook, Slack | HubSpot, Pipedrive |
| Email verification | Yes | Double verification |
| API access | Custom plan only | All plans |
| Intent data | No | No |
Ocean.io's lookalike search is the one genuinely differentiating feature here. Adapt.io is a more traditional search-and-filter platform. Neither tool offers intent data - a meaningful gap for teams running ABM plays.
What Users Actually Say
Adapt.io's G2 profile tells a consistent story: 4.6/5 across 2,789 reviews, with ease of use and contact quality leading the praise. The top complaint is credit limitations, flagged 34+ times. Users love the product but feel nickeled on volume.
Ocean.io is a different story entirely. A 3.1/5 across just 12 reviews, with a polarized split - 41% five-star, 25% one-star. One reviewer called the database "junk." On G2, every listed alternative to Ocean.io is rated easier to set up, more usable, and better at meeting requirements. When a vendor hasn't been active on G2 for over a year, that tells you where their priorities are.
Here's the thing: in a Reddit head-to-head test, a user ran 10,000 contacts through Ocean.io and a competing tool - Ocean.io produced roughly 50% fewer valid contacts. That's a dealbreaker for outbound teams burning credits on bad data.
Who Should Pick Which
Pick Adapt.io if you need basic contact data on a budget, want a well-reviewed platform with a large user base, and can live without intent data or lookalike search. It's a solid workhorse for teams doing straightforward list building.
Pick Ocean.io if you specifically need AI-driven lookalike audience building and you're prepared to verify every output aggressively. The feature is unique. The data behind it is the risk.
Let's be honest: if your outbound volume is under 1,000 emails per month, neither Adapt.io nor Ocean.io gives you enough signal to justify the spend. You need accuracy and intent data more than you need a big database.
If you're evaluating vendors mainly on database size, start with a broader shortlist of sales prospecting databases and compare accuracy first.
Deliverability matters too: bad data inflates your email bounce rate and can tank your domain reputation.
Ocean.io's 50% invalid contact rate burns credits and kills deliverability. Prospeo's 5-step verification and proprietary email infrastructure deliver 98% accuracy across 300M+ profiles - with 125M+ verified mobiles and 30+ search filters including lookalike-level targeting.
75 free emails monthly. No credit card. No bounced data.
FAQ
Does Ocean.io still offer monthly plans?
Ocean.io has moved to a credit-based model at $0.064/credit with a minimum 9,000-credit yearly subscription (~$576/year). The old Starter and Professional tiers are discontinued. Monthly billing is available but costs more per credit.
Can I use Adapt.io without an annual contract?
Yes. Adapt.io offers monthly plans and a free tier with 25 email credits - no annual commitment required. Ocean.io offers pay-as-you-go credits at a higher per-credit rate than their annual subscription, so month-to-month use is possible but you'll pay a premium for the flexibility.
What's a good free alternative to both?
Prospeo's free tier includes 75 email credits and 100 Chrome extension credits per month - more generous than Adapt.io's 25 free emails and Ocean.io's credit minimum. It also includes real-time verification and intent data signals, which neither Adapt.io nor Ocean.io offer on free plans.