Side by side
Keryx vs Overloop
Both stand on sales engagement software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial Web
Choose Keryx if an outbound team needs parallel dialing, prospect notes, and call analytics with organization-wide do-not-call suppression. Look elsewhere if you need HubSpot or Salesforce integrations today, or if a paid plan starting at $150 per seat per month does not fit.
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Free trial APIExtensionWeb
Overloop combines contact discovery, buying signals, AI-assisted messaging, and multichannel campaign tracking. Its paid tiers increase credits, email accounts, campaigns, integrations, and support for larger teams.
Visit OverloopThe facts
| Keryx | Overloop | |
|---|---|---|
| Free plan | A free trial | A free trial |
| Open source | Not published | Not published |
| Runs on | Web | API, Extension, Web |
| Lowest paid plan | Professional: $150 per seat a month | Starter: $69 per user a month |
| Plans published | 3 | 3 |
| Maker | Not published | Not published |
| Website | usekeryx.com | overloop.com |
| On sales engagement software | #36 of 70 | #32 of 70 |
Keryx: what it does well
- Calls up to three prospects at once, connecting the first answer.
- Stores prospect notes beside calls.
- Tracks outcomes, duration, and notes with dashboard and per-rep analytics.
- Suppresses do-not-call numbers across the organization.
- Exports call logs as CSV.
What to know first
- Professional starts at $150 per seat monthly.
- The seven-day Trial is limited to 210 call minutes and one seat.
- Dedicated Twilio numbers are blocked during the Trial.
- HubSpot and Salesforce integrations are planned, not current.
Overloop: what it does well
- Database advertises over 450 million B2B contacts
- AI drafts personalized outreach messages
- Campaigns combine email and LinkedIn steps
- Tracks opens, clicks, and replies
- Includes email warm-up and reply detection
What to know first
- No free plan
- Phone numbers cost 5 credits when found
- Starter allows three campaigns
- Enterprise pricing is custom
Alternatives to Keryx Alternatives to Overloop The whole list