Side by side
Persefoni vs Plan A
Both stand on environmental, social and governance reporting software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Persefoni combines emissions accounting coverage with guided disclosure tools and anomaly detection. The free Pro plan has clear user and reporting limits, while Advanced pricing is available by demo request.
Visit Persefoni Paid APIWeb
Plan A combines emissions measurement and reporting with target-setting and reduction planning for businesses. Buyers should note that pricing is on request and CSRD reporting is an add-on.
Visit Plan AThe facts
| Persefoni | Plan A | |
|---|---|---|
| Free plan | Yes | Not published |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Web |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 2 | 3 |
| Maker | Not published | Not published |
| Website | persefoni.com | plana.earth |
| On environmental, social and governance reporting software | #1 of 22 | #6 of 22 |
Persefoni: what it does well
- Free Pro plan with unlimited assets and historical years
- Covers Scope 1, 2, and all 15 Scope 3 categories
- Guided disclosures for CSRD, ISSB, and CDP
- Copilot support and AI anomaly detection
- Both plans list four security certifications
What to know first
- Pro is limited to one user
- Detailed GHG Metrics Reports are not included in Pro
- Advanced pricing requires a demo request
- Concierge Support is a paid upgrade
Plan A: what it does well
- Covers emissions across Scopes 1, 2, and 3.
- Extracts invoice details from PDFs.
- Supports science-based targets and reduction planning.
- Calculation methodology is TÜV Rheinland certified and GHG Protocol-aligned.
- Offers an API for data upload and export.
What to know first
- Pricing is available only on request.
- CSRD reporting is an add-on.
- Enterprise includes 500 suppliers; Supply Chain+ is optional for Essential.
- API use is limited to carbon accounting integration; rate limits may apply.
Alternatives to Persefoni Alternatives to Plan A The whole list