Lago vs FreeAgent
Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source metering and usage-based billing for AI and API companies; $22M raised serving Mistral.ai and Together.ai competing with Stripe Billing for consumption-based pricing infrastructure.
About
Lago is an open-source metering and usage-based billing platform that enables SaaS, AI, fintech, and API companies to implement complex consumption-based pricing models — providing the infrastructure for tracking usage events, aggregating them into billing metrics, managing subscription plans, generating invoices, and integrating with payment processors and accounting systems. Founded in 2021 in Paris and a Y Combinator graduate, Lago raised $22 million from investors and serves customers including Mistral.ai, Together.ai, and Juni with both a free self-hosted version and a paid cloud SaaS offering.\n\nLago's platform addresses the engineering complexity of usage-based billing — which requires reliable high-volume event ingestion (every API call, compute minute, or message sent), real-time aggregation into billable metrics (sum of API calls, maximum storage, seat counts), and invoice generation that correctly maps complex pricing tiers, overages, and credits. Building this infrastructure in-house typically takes multiple engineering months and ongoing maintenance; Lago provides it as open-source infrastructure that companies can deploy and customize.\n\nIn 2025, Lago competes in the billing infrastructure and monetization platform market with Stripe Billing, Chargebee, Recurly, and Zuora for subscription and usage billing systems. The shift toward consumption-based pricing (pay per API call, per compute unit, per message) has accelerated with the growth of AI and infrastructure companies that naturally charge per usage rather than per seat. Traditional subscription billing platforms (Chargebee, Recurly) were designed for fixed subscription billing and have added usage billing as an afterthought — Lago's usage-first architecture is better suited for the complex consumption models modern AI and API companies need. The open-source approach builds community trust and allows customization that proprietary platforms don't permit. The 2025 strategy focuses on growing enterprise cloud customers and deepening the platform's AI company billing capabilities.
UK accounting software for freelancers and small businesses; owned by NatWest Group since 2018; distributed via NatWest and RBS banking apps; supports Making Tax Digital and Self Assessment.
About
FreeAgent is an Edinburgh, UK-based accounting software company that provides freelancers, contractors, and small businesses with cloud-based bookkeeping, invoicing, expense management, payroll, self-assessment tax returns, and VAT filing tools in a platform designed for the UK market. Founded in 2007 and acquired by NatWest Group in 2018, FreeAgent has maintained its identity as a specialist accounting platform for the UK self-employed and micro-business market, building deep compliance functionality for UK-specific requirements including Making Tax Digital VAT filing, Self Assessment, and Corporation Tax returns. The NatWest acquisition has strengthened FreeAgent's distribution by integrating the software into NatWest and Royal Bank of Scotland business banking apps, giving millions of NatWest SMB banking customers free access to FreeAgent as part of their business account.\n\nFreeAgent's product design reflects the realities of running a small business in the UK, where tax obligations for the self-employed—navigating income tax bands, National Insurance contributions, dividend allowances, and annual investment allowances—are complex enough to require software designed around these specific rules rather than a generic accounting tool adapted for UK compliance. The platform's tax timeline feature gives users a forward-looking view of upcoming tax payments and liabilities, reducing the surprise bills that derail small business cash flow. For limited company directors, FreeAgent handles company accounts preparation, dividend recording, and director self-assessment filing within the same system.\n\nFreeAgent competes with QuickBooks Self-Employed, Sage Business Cloud, and Xero in the UK SMB and freelancer accounting market. Its NatWest distribution creates a significant user acquisition advantage, as millions of eligible NatWest business account holders can activate FreeAgent at no additional cost. Differentiating factors include its UK-tax-centric product depth, its focus on the self-employed and micro-business segment, and the trust that comes from being backed by one of the UK's largest banking groups.
AI Visibility Head-to-Head
Key Details
Capabilities & Ecosystem
Capabilities
Integrations
Also Compare
Track AI Visibility in Real Time
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.