Best CO2 AI Alternatives in 2026
Updated
20 apps from carbon accounting software ranked against CO2 AI on the same published basis.
- 1CO2 AI vs CarbonTool
- 2CO2 AI vs Persefoni
- 3CO2 AI vs Carbonfact
- 4CO2 AI vs ACT Group Decarbonization Platform
- 5CO2 AI vs Normative
- 6CO2 AI vs Watershed
- 7CO2 AI vs Sweep
- 8CO2 AI vs SINAI Technologies
- 9CO2 AI vs CarbonAnalytics
- 10CO2 AI vs Greenio
- 11CO2 AI vs Plan A
- 13CO2 AI vs NetNada
- 14CO2 AI vs Vaayu
- 15CO2 AI vs GreenStitch
- 16CO2 AI vs CarbonSmart
- 17CO2 AI vs Hedgehog Carbon Platform
- 18CO2 AI vs EcoReko
- 19CO2 AI vs TrackZero
- 20CO2 AI vs scoped
- 21CO2 AI vs Carbonstop Ccloud
CO2 AI alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | CarbonTool | 8.2 | Free plan | $166.67/mo | API, Web |
| 2 | Persefoni | 7.9 | Free plan | Free | API, Web |
| 3 | Carbonfact | 7.4 | Free plan | Free | API, Web |
| 4 | ACT Group Decarbonization Platform | 7.3 | No | — | Web |
| 5 | Normative | 7.1 | No | — | Web |
| 6 | Watershed | 7.0 | No | — | Web |
| 7 | Sweep | 6.9 | No | — | Web |
| 8 | SINAI Technologies | 6.8 | No | — | Web |
| 9 | CarbonAnalytics | 6.8 | No | £69.99/mo | API, Web |
| 10 | Greenio | 6.8 | Free plan | ₹2,999/mo | API, Web |
| 11 | Plan A | 6.6 | No | — | Web |
| 13 | NetNada | 6.3 | No | — | Web |
| 14 | Vaayu | 6.3 | No | — | Web |
| 15 | GreenStitch | 6.2 | No | — | Web |
| 16 | CarbonSmart | 6.2 | No | — | Web |
| 17 | Hedgehog Carbon Platform | 6.0 | No | — | Web |
| 18 | EcoReko | 6.0 | No | — | Web |
| 19 | TrackZero | 5.7 | No | — | Web |
| 20 | scoped | 5.6 | No | — | Web |
| 21 | Carbonstop Ccloud | 5.6 | No | — | Web |
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Questions about CO2 AI alternatives
What is the best alternative to CO2 AI?
CarbonTool, number 1 in carbon accounting software with a score of 8.2 out of 10. The others here: Persefoni, Carbonfact, ACT Group Decarbonization Platform and 16 more.
What is the best free alternative to CO2 AI?
CarbonTool is the best-ranked alternative with a free plan. 4 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.