Persefoni vs Plan A: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Persefoni and Plan A side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Persefoni leads on a free plan. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Persefoni
Measure, report, and decarbonize your organization's carbon footprint with AI-powered precision.
Best for you if:
- • You want a free tier before you commit
Plan A
Certified carbon accounting software for precise measurement, reporting, and reduction of emissions.
Best for you if:
- • You want certified software ensures accuracy and compliance with global standards
| At a Glance | Persefoni | Plan A |
|---|---|---|
Starts at | Free plan | Not published |
Category | Sustainability & ESG Analytics | Sustainability & ESG ESG Reporting |
Rating | 4.8/5 G2 4.8 · Capterra 4.9 20 reviews | n/a |
Free plan | Yes | No |
Watch out for | Many key features are 'Add-on' in PRO tier | n/a |
Choose Persefoni or Plan A?
Choose Persefoni if
- You want a free tier before you commit
- You want comprehensive coverage of Scope 1, 2, and 3 emissions
- You want AI-driven tools enhance accuracy and efficiency in carbon accounting
Choose Plan A if
- You want certified software ensures accuracy and compliance with global standards
- You want AI-enhanced features significantly reduce time spent on data management and reporting
In-Depth Analysis
Persefoni
Measure, report, and decarbonize your organization's carbon footprint with AI-powered precision.
Persefoni's pricing structure is opaque, with only a 'Start for free' PRO tier and 'Request a demo' for the ADVANCED tier.
Watch out
Many key features are 'Add-on' in PRO tier
Strengths
- Pro: Comprehensive coverage of Scope 1, 2, and 3 emissions
- Pro: AI-driven tools enhance accuracy and efficiency in carbon accounting
- Pro: Strong focus on regulatory compliance, including specific solutions for California SB 253 and SB 261
- Pro: Expert support and advisory services from sustainability and regulatory specialists
- Pro: High data security and assurance standards (SOC 1 Type II, SOC 2 Type II, ISO 27001, ISO 27017)
Weaknesses
- Con: Specific pricing tiers and detailed feature breakdowns for each tier are not immediately transparent without requesting a demo or signing up.
- Con: Some advanced AI features like natural language emission factor mapping are listed as "coming soon".
Key features
Plan A
Certified carbon accounting software for precise measurement, reporting, and reduction of emissions.
Strengths
- Pro: Certified software ensures accuracy and compliance with global standards.
- Pro: AI-enhanced features significantly reduce time spent on data management and reporting.
- Pro: Comprehensive support from in-house scientists and experts for tailored decarbonization strategies.
- Pro: Focus on a 'decarbonization-first' approach for impactful emission reductions.
- Pro: Access to a community and resources for continuous learning and collaboration.
Weaknesses
- Con: Specific pricing details are not publicly available, requiring a demo request.
- Con: The platform's full capabilities and integration ecosystem are not exhaustively detailed without a demo.
Key features
Plans and prices: Persefoni vs Plan A
| Tool | Plans and prices | Source |
|---|---|---|
| Persefoni |
| persefoni.com/pricing read Nov 2, 2026 |
| Plan A | No plan prices on file | plana.earth |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Persefoni pricing and Plan A pricing.
Key Takeaways
Persefoni
- Has a free plan
Plan A
- Choose if you want certified carbon accounting software for precise measurement, reporting, and reduction of emissions
What the data shows
On the data below, Persefoni leads on a free plan. We do not name an overall winner for this pair.
- Only Persefoni has a published user rating (4.8/5 from 20 reviews); Plan A has none we can show.
- Only Persefoni has a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Persefoni and Plan A compare in 2026?
On the data below, Persefoni leads on a free plan. We do not name an overall winner for this pair. Only Persefoni has a published user rating (4.8/5 from 20 reviews); Plan A has none we can show. Only Persefoni has a free plan.
What are Persefoni and Plan A used for?
Persefoni: Measure, report, and decarbonize your organization's carbon footprint with AI-powered precision. Plan A: Certified carbon accounting software for precise measurement, reporting, and reduction of emissions.
What does Persefoni cost vs Plan A?
Persefoni has no public paid-plan price on file. Plan A has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Nov 2, 2026.
What's the main difference between Persefoni and Plan A?
Persefoni's main strength: comprehensive coverage of Scope 1, 2, and 3 emissions. Plan A's main strength: certified software ensures accuracy and compliance with global standards.