Adapt.io vs Hunter: Honest Comparison for 2026
Adapt.io and Hunter.io solve different slices of the same problem. One gives you a broader B2B database with phone numbers; the other gives you a clean email finder with built-in sequences. Neither gives you everything, and both will frustrate you with credit limits faster than you'd expect.
With email lists decaying roughly 22.5% per year, picking the right finder isn't a minor decision.
Side-by-Side Snapshot
| Adapt.io | Hunter.io | Edge | |
|---|---|---|---|
| G2 Rating | 4.6/5 (2,789 reviews) | 4.4/5 (634 reviews) | Adapt |
| Capterra Rating | - | 4.6/5 | Hunter |
| Ease of Use | 9.1 | 9.4 | Hunter |
| Ease of Setup | 8.9 | 9.5 | Hunter |
| Database Size | 250M+ contacts | 100M+ indexed email addresses | Adapt |
| Free Credits | 25 credits/day | 50/month | Adapt |
| Phone Numbers | Yes (Basic+) | No | Adapt |
| Built-in Sequences | No | Yes | Hunter |
| Team Members | Team management on Custom | Unlimited on all plans | Hunter |
| API Access | Custom plan only | Available on paid plans | Hunter |
| Est. Cost per Contact | ~$0.045 (Starter, if maxed) | ~$0.05-0.07 (Starter) | Adapt (slightly) |
The G2 comparison page confirms both tools skew heavily toward small business users - 64.3% for Adapt, 59.4% for Hunter.
What Adapt.io Offers
Use this if you need more than just emails. Adapt's 250M+ contact database includes 12M+ company profiles, direct dials, and 50+ data attributes per record. The advanced filters and ABM list-building features make it a legitimate prospecting database, not just a lookup tool. Phone credits start at the $99/mo Basic plan, 5M+ records get refreshed daily, and there's a 7-day free trial with no credit card required. Key integrations include Salesforce, HubSpot, Pipedrive, Zoho, Outreach, and Salesgear.
Skip this if you need volume. Here's the scenario that trips people up: you sign up for Starter expecting to build a 1,000-contact list, then hit the 50/day cap and realize it'll take 20 business days. Even the $99/mo Basic plan caps you at 100 contacts/day. We've seen teams hit Adapt's daily cap within the first hour of a prospecting sprint.
CSV export is included starting on Starter. API access? Custom plan only - meaning you're talking to sales. The daily limits are the single biggest friction point, and G2 reviewers consistently call it out: "limited credits" is a top complaint with 34 mentions.
What Hunter.io Offers
Use this if your workflow is email-only and you already know which companies to target. Hunter works best for finding specific contacts from your own targeted research - it's less suited for building ICP lists from scratch (use an ideal customer profile to keep targeting tight). The killer feature is built-in email sequences: find a contact, verify the email, and drop them into a cold email campaign without leaving the platform. It sends from your own Gmail/Google Workspace or Outlook account for better deliverability.
With 6M+ users and that 9.5 Ease of Setup score on G2, it's battle-tested. All plans include unlimited team members - Adapt gates team management to Custom. The Chrome extension and domain search make it dead simple for quick lookups, and native integrations with major CRMs plus 5,000+ connections via Zapier keep it flexible.
Skip this if you need phone numbers. Hunter doesn't have them, period. Also watch out if you burn through credits fast. In our testing, Hunter's domain search eats credits from the same pool as Finder and Verifier, so your SDR running domain searches on 15 target accounts in week one can drain those 2,000 monthly Starter credits before anyone runs a verification pass.
Both Adapt and Hunter gate volume behind daily caps and shared credit pools. Prospeo gives you 300M+ profiles, 125M+ verified mobiles, and 98% email accuracy - all at ~$0.01/email with no daily contact limits. Data refreshes every 7 days, not whenever the vendor gets around to it.
Stop renting a meter. Get the data you actually need.
Pricing Compared
Adapt.io Pricing
| Plan | Monthly | Email Credits | Enrichment Credits | Daily Limit |
|---|---|---|---|---|
| Free | $0 | 25/day | 25/day | 25 contacts |
| Starter | $49 | 500 | 500 | 50 contacts |
| Basic | $99 | 1,000 | 1,000 | 100 contacts |
| Custom | Talk to sales | Unlimited | Unlimited | No cap |
Basic also includes 100 phone credits. Annual billing saves 20%, putting Starter at ~$39/mo.
Hunter.io Pricing
| Plan | Monthly | Annual | Credits/mo |
|---|---|---|---|
| Free | $0 | - | 50 |
| Starter | $49 | $34/mo | 2,000 |
| Growth | $149 | $104/mo | 10,000 |
| Scale | $299 | $209/mo | 25,000 |
| Enterprise | Custom | Custom | Custom |
Starter includes 3 connected email accounts. Need more? Each additional account costs $10/mo - a hidden cost that adds up for growing teams.
Hunter's 30% annual discount is more aggressive than Adapt's 20%. At the Starter tier, Hunter gives you 4x the credits for the same $49/mo, but those credits cover Finder, Verifier, and Domain Search from one pool.
Let's be honest: both tools are built on the same business model - give you just enough to get hooked, then gate the volume behind escalating tiers. You're not buying a database. You're renting a meter.
Cost Per Usable Contact
This is the math neither vendor wants you to do.
Adapt Starter ($49/mo): 50 contacts/day x ~22 business days = 1,100 max contacts. That's ~$0.045/contact if you max out every single day. Most teams won't - realistic cost is closer to $0.08-0.10/contact.
Hunter Starter ($49/mo): 2,000 credits shared across Finder, Verifier, and Domain Search. A typical workflow - find an email, verify it - costs 2 credits per usable contact. That's ~1,000 verified emails max, or ~$0.05/contact. Run domain searches and the number drops fast; realistic cost lands around $0.05-0.07/contact.
At the Starter tier, they're surprisingly close. Adapt edges ahead on raw cost-per-contact if you max daily limits, but Hunter delivers more flexibility in how you spend.
What Users Actually Say
Both tools earn praise for ease of use. The complaints are where things get interesting.
Adapt.io (2,789 G2 reviews): Users love the ease of use (71 mentions), contact info quality (59), and data accuracy (30). Top complaints? Limited credits (34 mentions) and incorrect emails (14 mentions).
Hunter.io (634 G2 reviews): Users praise ease of use (42 mentions), the verification tool (24), and accuracy (22). Complaints center on expense at scale (10 mentions), limited credits (10), and lack of integration with professional networking platforms (7). The consensus on r/sales threads tends to echo this - Hunter's great for quick lookups, but teams doing serious outbound volume outgrow it fast.
The pattern across both platforms is unmistakable: credits run out too fast. That tells you everything about the business model.
Which Tool Fits Your Workflow?
Pick Hunter if:
- Your workflow is email-only with no phone outreach
- You want sequences built into the same tool
- You value fast setup, a clean UI, and unlimited team seats
Pick Adapt if:
- You need phone numbers alongside emails
- You want broader company data and advanced filters
- You're building targeted ABM lists with firmographic criteria (start with firmographic filters)
For teams that need verified emails, verified phone numbers, no daily caps, and data that's actually fresh, neither tool quite gets there. That's where Prospeo fits - 300M+ professional profiles with 98% email accuracy, 125M+ verified mobile numbers, and a 7-day data refresh cycle. No daily contact caps, no annual contracts, and pricing starts at roughly $0.01 per email. The free tier gives you 75 verified emails per month with no credit card required.
If you're comparing more options, see our roundup of Hunter alternatives.
Hunter has no phone numbers. Adapt caps you at 100/day on a $99 plan. Prospeo delivers verified emails and 125M+ direct dials in one platform - with 30+ filters, intent data, and a 7-day refresh cycle that keeps your lists from decaying.
Emails, mobiles, and intent data - no credit games, no sales calls.
FAQ
Is Adapt.io more accurate than Hunter for emails?
No neutral head-to-head benchmark exists. A small test of 20 queries put Hunter at 75% valid emails found. Both tools list "incorrect emails" among their top G2 complaints. Test with your own ICP before committing - accuracy varies dramatically by industry and seniority level.
Does Hunter.io offer phone numbers?
No. Hunter is strictly email-only - no direct dials, no mobile numbers. If you need phones, Adapt starts offering phone credits at $99/mo (100 credits). Prospeo includes 125M+ verified mobiles at 10 credits per number across all plans, with a 30% pickup rate.
Can I use both tools for free?
Yes. Adapt's free plan gives 25 email credits per day plus enrichment credits. Hunter's free plan gives 50 credits per month and includes 1 connected email account. Both are enough to test data quality, but neither supports real prospecting volume.
Which is better for outbound teams scaling past 1,000 contacts per month?
Neither tool handles high-volume outbound gracefully at entry-level pricing. Adapt's daily caps throttle output, and Hunter's shared credit pool drains fast when you're combining Finder, Verifier, and Domain Search. Teams doing 1,000+ contacts monthly should evaluate Growth-tier plans ($149+/mo) or consider platforms where credits aren't gated by daily limits and cost roughly $0.01 per verified email.