Trullion vs Mercury

A detailed comparison to help you choose between Trullion and Mercury.

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Verdict: Mercury wins

Mercury scores 4.2/5, edging out Trullion at 3.6/5. US-registered startups and small businesses that want free business banking with built-in, approval-gated AI for spend insight and routine finance operations.

Trullion

Trullion

AI accounting for enterprise compliance

Mercury

Mercury

Banking for startups with AI insights

Rating3.6 (1 review)4.2 (1 review)
Pricing Modelpaidfree
Starting PriceFrom $1000/moFree
Best ForEnterprise finance and audit teams with complex, multi-standard lease and revenue portfolios whose auditors demand source-level evidence for every figure.US-registered startups and small businesses that want free business banking with built-in, approval-gated AI for spend insight and routine finance operations.
Free Tier
API Access
Team Features
Open Source
Tags
ssoteam features
free tierapi access
Visit Trullion →Visit Mercury →

Trullion

Pros

  • + Source-linked audit trail: every schedule value traces to the contract language it came from, so evidence review happens inside the tool instead of a shared folder of PDFs
  • + Multi-standard coverage (ASC 842, IFRS 16, FRS 102, GASB 87) in one records set removes the parallel-spreadsheet problem for dual-reporting groups
  • + Handles messy real contracts — multi-clause PDFs, amendment chains, tabular payment terms — and routes uncertain OCR extractions to review instead of guessing
  • + Product spans leases, revenue recognition, revenue assurance and an Audit Suite under one evidence model
  • + Named audit-firm and enterprise customers (Anchin, Claroty, Taboola, Bradken) show it holds up in actual audit workflows

Cons

  • - No published pricing at all — trullion.com/pricing is a 404 and every quote is custom after a demo
  • - No free trial; evaluation is a sales process, so budgeting leans on untrustworthy directory estimates
  • - Implementation is a weeks-to-months project for complex portfolios, not a weekend setup
  • - Overweight for small portfolios: published-price rivals (Cradle $99/mo, iLeasePro from $149/mo, LeaseGuru $1,099/yr) cover simple ASC 842 cases cheaply
  • - No published OCR or extraction accuracy benchmarks a buyer can verify before purchase
View full Trullionreview →

Mercury

Pros

  • + Base plan is genuinely $0/month with no minimums or overdraft fees, and the free surface covers checking, cards, invoicing and bill pay
  • + Insights — live dashboards, ad-hoc financial questions, spend notifications — is included free on every plan per mercury.com/insights
  • + Command executes natural-language instructions across the account stack but only with explicit per-action approval and a traceable record
  • + Up to $5M FDIC insurance through partner banks and sweep networks, per the plan comparison
  • + Free API, MCP server and CLI let you drive Mercury from your own agent tooling

Cons

  • - US-only for business banking, cards and treasury — non-US entities are excluded
  • - Treasury requires a $250K Mercury balance to unlock, locking out early-stage startups
  • - AI features only see Mercury data; no connection to external revenue or payroll systems unless routed through Mercury
  • - Enriched NetSuite automations and $0 ACH debit invoicing sit behind the $299/month Pro plan
  • - 1099 filings cost $5 per filing on the free plan, and Books/Payroll are add-ons whose fee waivers end 31 December 2026
View full Mercuryreview →

Frequently Asked Questions

Which is better, Trullion or Mercury?▼
Mercury scores higher at 4.2/5 vs 3.6/5 for Trullion, making it the better-rated option in our comparison.
What is the difference between Trullion and Mercury?▼
Trullion: Trullion applies AI to accounting work, automating lease accounting, revenue recognition and audit workflows while keeping each figure traceable back to its source document. Mercury: Mercury provides business banking for startups and growing companies, with accounts, cards, bill pay and treasury in one dashboard.
Is Trullion or Mercury more affordable?▼
Trullion starts at €1000/mo, Mercury starts at €0/mo. Check the comparison table above for current pricing.

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