VOL. XCIV, NO. 247

★ BEST INVESTING TOOLS COMPARISON ★

NO ADVICE

Tuesday, February 24, 2026

Tool Comparison

Firefly III vs OpenCorporates comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Firefly III logo

Firefly III

firefly-iii.org

PricingFree
PlatformsWeb, API
OpenCorporates logo

OpenCorporates

opencorporates.com

PricingFree, Subscription
PlatformsWeb, API
Top 50 Investing ToolsThe global ranking of the best investing tools, ranked by community votes.

At a glance

Platforms
Firefly IIIWeb, API
OpenCorporatesWeb, API
Categories
Firefly III4
OpenCorporates3
Pricing details

Tool

Firefly III

Starting price

Free tierYes
Free trial

Plans & pricing

FreeFree

Tool

OpenCorporates

Starting price

Free tierYes
Free trial

Plans & pricing

Free (personal & public-benefit use)Free
Essentials (API)Subscription
Starter (API)Subscription
Enterprise Bulk (SFTP CSV datasets)Subscription

Vote sentiment comparison

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Platform details

AttributeFirefly IIIOpenCorporates
Asset types
Other
Other
Experience
BeginnerIntermediateAdvanced
BeginnerIntermediateAdvanced
Regions
Not specified
North AmericaEuropeAPACLatAmMiddle EastAfrica
Data freshness
Not specified
End of Day
API access
REST
REST
Export formats
CSV
CSVJSON

Coverage overlap

Shared categories1

Categories where both tools offer overlapping coverage.

Firefly III strengths3

Categories covered by Firefly III only.

OpenCorporates strengths2

Categories covered by OpenCorporates only.

Frequently Asked Questions

What's the difference between Firefly III and OpenCorporates?

Firefly III focuses on Portfolio, APIs & SDKs, and Webhooks while OpenCorporates specializes in Data APIs, Regulatory Filings Monitoring, and Other. They overlap in 1 categories, so choose based on your preferred workflow and pricing.

How much do Firefly III and OpenCorporates cost?

Good news—both Firefly III and OpenCorporates offer free plans. You can try each platform without commitment and only pay when you need premium features.

Do Firefly III and OpenCorporates have APIs?

Yes, both platforms offer API access for developers and quants who want to build custom integrations or automate their workflows.

Should I choose Firefly III or OpenCorporates?

Choose Firefly III if you need Self-hosted open-source personal finance manager (AGPLv3 license)., and Supports double-entry bookkeeping with budgets, categories, tags, and detailed reporting.. Go with OpenCorporates if 230M+ company records spanning 145+ jurisdictions, aggregated from 140+ official registries with full provenance and source links., and Versioned REST API with JSON (default) or XML output; API keys required. Free tier provides up to 200 requests per month (50 per day). better fits how you invest.

Can I export data from Firefly III and OpenCorporates?

Both platforms let you export data to spreadsheets (CSV). This is useful for custom analysis or record-keeping.

Can I track my portfolio with Firefly III or OpenCorporates?

Firefly III offers portfolio tracking features. OpenCorporates is more focused on research and analysis.

Keep Exploring

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.