Growbots vs Warmbly
Growbots
growbots.comWarmbly
warmbly.comSide by side
| Figure | Growbots | Warmbly |
|---|---|---|
| Price from | $29/mo | $15/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 6 |
| Spec score · Cold Email Software | 9.1 (#2) | 7.8 (#25) |
| Compliance | Growbots says its prospect database is GDPR-compliant and excludes contacts from countries covered by the GDPR. | Warmbly describes its data handling as GDPR-aligned and lists SOC 2 Type II and ISO 27001 as planned, with no certification claimed. |
| Support | The company says its experts provide an updated knowledge base, in-app training, webinars, and Q&A sessions. | The pricing page lists community support for Starter, email for Grow, priority support for Business and dedicated support for Enterprise. |
Plans
Growbots
- FreemiumFree
- Starter Outreach$29 a month
- Pro Outreach$39 a month
- Outreach$49 a month
- All-in-one$199 a month
- 3-month bootcampPriced on request
- ProPriced on request
Warmbly
- Warmup pool · FreeFree
- Warmup pool · Unlimited$15 a month
- Starter$23 a month
- Grow$71 a month
- Business$263 a month
- EnterprisePriced on request
In their own words
Growbots
Growbots provides outbound prospecting, lead generation and campaign execution for small and medium-sized businesses. Its prospecting product gives access to a database of more than 180 million verified contacts with detailed search filters. Outreach features listed include email sequences, personalization, tracking, reporting, A/B testing and do-not-contact lists. Deliverability tools include dashboards, automatic warmup, authentication checks and tests. Salesforce and HubSpot integrations are native; other CRMs can connect through Zapier. Email providers can connect if they support IMAP, SMTP and SSL. A prospect credit is used when a contact is scheduled or exported; credits reset at renewal and do not roll over, while invalid or inactive email addresses are refunded. The free plan includes 20 email accounts, three sequences and partial database access. Starter Outreach is $29 a month, and Pro Outreach is $39 a month; prospect credits start at $0.13 each. Growbots runs on the web and offers a free trial.
Warmbly
Warmbly is an open-source cold outreach platform that brings email warmup, campaign sending, a unified inbox, analytics, and CRM together. Campaign sequences can branch based on opens, clicks, or replies, include A/B variants, and send follow-ups in the same conversation thread. Sending can be restricted to weekday working hours in a selected timezone. The inbox classifies replies, bounces, out-of-office messages, and clicks across connected mailboxes. Warmbly is available on the web and through an API, or can be self-hosted under Apache 2.0. When a self-hosted installation connects to Warmbly Cloud for warmup, campaigns, contacts, and inbox data remain on the self-hosted server. Integrations include HubSpot, Salesforce, Pipedrive, Close, Zapier, Make, n8n, Slack, Discord, Calendly, and Cal.com; Google Sheets lead sync is available on demand. The free warmup pool supports up to 10 mailboxes. Paid campaign plans include Starter at $23 a month billed annually, with 150 emails per day, and Grow at $71 a month billed annually, with 3,000 emails per day.