Overview
Firma.dev and Logo.dev are both developer-focused API services, but they solve entirely different problems. Firma.dev is an ultra-low-cost e-signature API designed for SaaS companies that want to embed document signing directly into their applications. Logo.dev is a simple, reliable API for retrieving company logos – perfect for dashboards, fintech apps, and any UI that displays company information.
Feature Comparison
| Feature | Firma.dev | Logo.dev |
|---|---|---|
| Primary Function | E-signature API for embedding document signing | Company logo API for retrieving brand logos |
| Target Audience | Developers, SaaS teams, startups | Developers building dashboards, fintech apps, internal tools |
| Integration Complexity | Simple REST API, embeddable editors, integration in hours | Very simple API call; can be used as inline HTML img tag |
| White-Label / Branding | Fully white-labeled; resell-ready | Not applicable – logos returned as-is |
| Pricing Model | Pay-as-you-go at €0.029/envelope; free sandbox | Free tier available; paid plans for higher usage |
| Compliance & Security | SOC 2, ISO 27001, eIDAS, GDPR; audit trails | Not applicable |
| Data Coverage | N/A | 50M+ companies, 52M brand assets, 628M domains |
| Developer Experience | Swagger docs, pre-built UI components, webhooks, sample apps | Simple API, dark mode, retina sizes, grayscale options |
Pricing
Firma.dev: Pay-as-you-go at €0.029 per envelope (about 3¢). No monthly fees, no contracts, no minimums. Free sandbox with unlimited usage for testing. This is dramatically cheaper than traditional e-signature providers like DocuSign, where a single envelope can cost $4-5.
Logo.dev: Free tier available that is sufficient for many use cases. Paid plans for higher request volumes (specific pricing not provided on the page). The free tier makes it easy to try and integrate without any upfront cost.
Pros and Cons
Firma.dev
Pros:
- Ultra-low cost – 99% cheaper than DocuSign
- Developer-first with simple REST API and quick integration
- Fully white-label and resell-ready
- Compliant with major regulations (SOC 2, ISO 27001, eIDAS, GDPR)
- Free sandbox for testing with real documents
Cons:
- Limited to e-signature use case only
- Relatively new provider with smaller community compared to legacy players
Logo.dev
Pros:
- Extremely easy to integrate – just an API call or img tag
- Huge coverage: 50M+ companies, 628M domains
- Smart fallback logos (initials) ensure UI always looks good
- Dark mode, retina, and size options
- Free tier is generous and sufficient for many projects
Cons:
- Only provides logos – no other brand asset types (e.g., icons, colors)
- Dependent on public brand data; some logos may be outdated or missing
Verdict
Choose Firma.dev if you need to embed e-signatures into your SaaS product at a fraction of the cost of traditional providers. Choose Logo.dev if you need reliable, fast company logos for your UI – it's a no-brainer for any app that displays company information. Both are developer-friendly, but serve completely different purposes.
Firma.dev
Logo.dev