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Head-to-head · Carbon Accounting Software

CarbonTool vs Sweep

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score CarbonTool #3 in Carbon Accounting Software 9.2/10 30-day trial Free trial✓ 3 of 3 features Visit CarbonTool
Sweep #7 in Carbon Accounting Software 8.8/10 Pricing on request ✓ 3 of 3 features Visit Sweep

CarbonTool leads on 0 checks, Sweep on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCarbonTool · 9.2/10
  • Free trialonly CarbonTool

CarbonTool scores higher on our rubric for carbon accounting software: 9.2 against 8.8 out of 10; our editors rank them #3 and #7.

CarbonTool is the better fit for organizations needing affordable audit-ready accounting. Sweep is the better fit for complex value-chain and product footprints.

  • CarbonTool fits best

    Organizations needing affordable audit-ready accounting

  • Sweep fits best

    Complex value-chain and product footprints

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature CarbonTool 9.2/10 Visit ↗ Sweep 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #3 in Carbon Accounting Software #7 in Carbon Accounting Software
Best for Organizations needing affordable audit-ready accounting Complex value-chain and product footprints
Pricing model Paid Paid
Starting price €2,000/yr Pricing on request
Free plan — Not checked yet
Free trial 30 days —
Deployment Cloud Cloud
Platforms Web Web
Integrations 9 integrations 8 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features CarbonTool 3/3 · Sweep 3/3
Supplier engagement ✓ ✓
Audit trail ✓ ✓
API access ✓ ✓
Specs
Scope coverage Scope 1-3 Scope 1-3
Data collection Both Both
Emissions factors Both Both
Our review
Pros
  • Scope 1–3 accounting with 200+ emissions-source templates
  • Supplier surveys, consolidation and major reporting frameworks
  • Audit trail, REST API, OAuth 2.0, webhooks and bulk import
  • Covers Scope 1–3 across entities, sites, products, and suppliers
  • Supports supplier data collection, workflows, approvals, and audit trails
  • Includes lifecycle footprints, scenario modeling, and target setting
Cons
  • No time-unlimited free plan
  • Core supports single-entity measurement only
  • CSRD reporting starts with the €7,500 Enterprise plan
  • Core pricing requires contacting sales
  • Web-only access may not suit teams seeking native mobile or desktop apps
  • Its broad feature set may require substantial data and workflow coordination
Our verdict

CarbonTool is a web-based carbon accounting platform for organizations measuring, reporting and reducing greenhouse-gas emissions. It covers GHG Protocol Scope 1, 2 and 3 inventories, with manual entry, spreadsheet import, AI-assisted…

Read the review →

Sweep is a cloud sustainability platform for organizations measuring, reporting, and reducing greenhouse-gas emissions. It supports Scope 1, 2, and 3 accounting across entities, sites, products, and suppliers, making it suited to midmarket…

Read the review →
  1. CarbonToolCarbon Accounting Software 9.230-day trial
  2. SweepCarbon Accounting Software 8.8Pricing on request

Strengths and trade-offs

  • CarbonTool — where it wins

    • Scope 1–3 accounting with 200+ emissions-source templates
    • Supplier surveys, consolidation and major reporting frameworks
    • Audit trail, REST API, OAuth 2.0, webhooks and bulk import

    Where it doesn't

    • No time-unlimited free plan
    • Core supports single-entity measurement only
    • CSRD reporting starts with the €7,500 Enterprise plan
  • Sweep — where it wins

    • Covers Scope 1–3 across entities, sites, products, and suppliers
    • Supports supplier data collection, workflows, approvals, and audit trails
    • Includes lifecycle footprints, scenario modeling, and target setting

    Where it doesn't

    • Core pricing requires contacting sales
    • Web-only access may not suit teams seeking native mobile or desktop apps
    • Its broad feature set may require substantial data and workflow coordination
  • CarbonTool9.2/10 · 30-day trial

    Broad Scope 1–3 accounting and reporting from €2,000 per organization annually.

    Visit CarbonToolFull verdict →
  • Sweep8.8/10 · Pricing on request

    A broad carbon accounting platform for detailed corporate, product, and supplier footprints.

    Visit SweepFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update