AI-assisted summary
This side-by-side is generated from verified tool data (rating, pricing, free tier, integrations, adoption signals) using our editorial scoring framework. How we rank.
Head-to-Head
Greenly vs Fathom (2026)
Greenly
Paid★ 4.4
Best for: first carbon footprint measurement for smbs responding to customer or investor carbon disclosure requests, annual carbon inventory for cdp disclosure at small company scale
Fathom
Freemium★ 4.8
Best for: capturing every detail from sales and discovery calls, logging customer conversations to crm without manual entry
Fathom edges Greenly on the seven criteria below. Fathom is rated 4.8/5 across 2,100 ratings, ahead of Greenly at 4.4/5 from 2,100. Editorial review of this pair is pending - the auto-generated comparison below is based on data signals alone.
Feature Comparison
Output Quality
Derived from aggregate ratings (2,100 vs 2,100).
Ease of Use
Estimated from free-tier availability and entry pricing.
Pricing Value
Greenly: $500/mo. Fathom: $19/mo.
Free Tier
Greenly: no. Fathom: yes.
Feature Depth
Estimated from documented pros and use cases.
Integrations
2 integrations vs 5.
Adoption
User adoption proxy from aggregate review volume.
Verdict
Fathom wins this comparison with a total score of 31.5/35.
Try Fathom - editor's pick →Pick Greenly
Pick Greenly when its specific use cases (First carbon footprint measurement for SMBs responding to customer or investor carbon disclosure requests, Annual carbon inventory for CDP disclosure at small company scale) match yours.
Pick Fathom
Pick Fathom when you need a free tier, and budget is the priority ($19/mo vs $500/mo), and output quality is the priority (4.8 vs 4.4).