kitio.aiDouble vs Warmer
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Double starts at See pricing page and Warmer starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- AI web research on leads
- Lead qualification questions
- Verified email finder
- Targeted outreach messages
- Bulk processing
- CSV lead upload
- Social profile enrichment
- Personalized messages
- CRM export
- Enrichment API
| Feature | Double | Warmer |
|---|---|---|
| Best for | AI research agent for cleaning and qualifying lead lists | Enriches lead lists and writes personalized outreach messages |
| Category | Sales | Sales |
| Pricing model | Freemium | Free trial |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | No, trial available |
| Made by | Double Technologies, Inc. | Warmer |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Double starts at See pricing page and Warmer starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Double
- Answers link to their sources
- Handles large lists in bulk
- Combines many email data sources
- No pricing on the homepage
- Answers depend on what is public online
- Few integrations listed
Warmer
- Personalization generated per lead
- Exports to any CRM
- Enrichment API available
- Pricing is not published clearly
- Works from CSV uploads
- Credit-based usage
Which one should you choose?
Choose Double if you want:
- Answers link to their sources
- Handles large lists in bulk
- Combines many email data sources
Watch out: no pricing on the homepage.
Choose Warmer if you want:
- Personalization generated per lead
- Exports to any CRM
- Enrichment API available
Watch out: pricing is not published clearly.
Double vs Warmer FAQ
What is the difference between Double and Warmer?
Double: AI research agent for cleaning and qualifying lead lists. Warmer: Enriches lead lists and writes personalized outreach messages. Both are sales tools.
Is Double or Warmer cheaper?
Double starts at See pricing page and Warmer starts at See pricing page. Check both pricing pages for current plans.
Do Double and Warmer have free plans?
Double: Yes. Warmer: No, trial available.
Who makes Double?
Double is made by Double Technologies, Inc..
Who makes Warmer?
Warmer is made by Warmer.
Which should I choose, Double or Warmer?
Choose Double if you value answers link to their sources and handles large lists in bulk. Choose Warmer if you value personalization generated per lead and exports to any crm.