Rex Cash Application
Rex Cash Application is a managed accounts receivable service for enterprise finance teams.
What Rex Cash Application is
Rex Cash Application is a managed accounts receivable service for enterprise finance teams. It monitors payments that have arrived but have not been allocated, then matches remittance details with invoices, customers, and open balances. Rex flags deductions, underpayments, and unexplained differences, can request remittance advice or payment details, and routes unclear matches, disputes, and write-off decisions to finance. Before month-end close, it summarizes unapplied cash, blockers, and reconciliation issues. The service connects with ERPs, CRMs, email, and Microsoft Teams; its ERP article names NetSuite, QuickBooks, and Sage. Actions can be surfaced for review before execution, with a decision trace explaining the rationale and inputs. Rex says it does not use customer data to train or fine-tune models or share it across tenants, and deletes customer data within 30 days of a termination request. It runs on AWS, supports enterprise SSO, and is pursuing SOC 2 Type II certification. Personal data is encrypted in transit with TLS 1.2 or higher and at rest with AES-256. Fees are outcome-based and tied to work agents complete; pricing is available by contacting the team.
Good
- Matches remittance details to invoices and open balances.
- Flags short-pays, deductions, and unexplained differences.
- Actions can be reviewed before execution.
- Decision traces explain action rationale and inputs.
Watch out
- There is no self-serve product API.
- Pricing is outcome-based and not publicly listed.
- Rex is pursuing SOC 2 Type II certification.
Who it suits
Rex Cash Application is aimed at enterprise finance teams managing payment reconciliation and accounts receivable workflows. It suits teams that want exceptions routed for review and month-end reconciliation issues summarized.
Verdict
Rex focuses on cash application, exception handling, and close support for enterprise finance teams. Its outcome-based fees are tied to completed agent work, with pricing available from the team.
Plans and prices
From Rex Cash Application's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Outcome-based pricing | Priced on request | Benchmarked against the cost of operating receivables; implementation typically live in under two weeks · Fees are tied to the work agents complete; talk to the team for pricing. |
| Rex | Priced on request | No public price listed · Outcome-based pricing; fees are tied to work agents complete. |
The facts
Each one read from Rex Cash Application's own pages, with the date it was checked.
What it does
- AI data use
- Rex says it does not use customer data to train or fine-tune models and does not share data across tenants.checked 4 Oct 2026
- API limit
- Rex says there is no self-serve product API.checked 8 Oct 2026
- Clarification
- It can request remittance advice or payment details when needed.checked 4 Oct 2026
- Close support
- Rex summarizes unapplied cash, blockers, and reconciliation issues before close.checked 8 Oct 2026
- Data handling
- Rex says it does not use customer data to train or fine-tune models and deletes customer data within 30 days of a termination request.checked 8 Oct 2026
- Data protection
- The privacy policy states that personal data is encrypted in transit with TLS 1.2 or higher and at rest with AES-256.checked 4 Oct 2026
- Exception handling
- Rex flags short-pays, deductions, underpayments, and unexplained payment differences, and can route exceptions for finance review.checked 8 Oct 2026
- Exception routing
- It escalates unclear matches, disputes, and write-off decisions to finance.checked 4 Oct 2026
- Human oversight
- Rex says actions can be surfaced for review before execution and each action includes a decision trace.checked 8 Oct 2026
- Implementation
- Rex says implementation is typically live in under two weeks.checked 4 Oct 2026
- Integrations
- Rex says it connects to customers’ ERP, CRM, email, and Microsoft Teams.checked 8 Oct 2026
- Month-end close
- It summarizes unapplied cash, blockers, and reconciliation issues before close.checked 4 Oct 2026
- Pricing
- Fees are tied to the work Rex agents complete and benchmarked against the cost of operating receivables rather than software licenses.checked 8 Oct 2026
- Purpose
- Rex handles unapplied cash and reconciliation exceptions, escalating unresolved blockers before month-end close.checked 8 Oct 2026
- Remittance matching
- Rex matches payment details to invoices, customers, and open balances.checked 8 Oct 2026
- Security
- Rex says it is SOC 2 Type II certified and runs on AWS, with enterprise SSO support and tenant-isolated environments.checked 8 Oct 2026
- Short-pay detection
- It flags deductions, underpayments, and unexplained payment differences.checked 4 Oct 2026
- Support and onboarding
- Rex offers a 30-minute walkthrough, and its pricing page says implementation is typically live in under two weeks.checked 8 Oct 2026
- Who it is for
- Rex describes itself as a managed service for enterprise finance teams.checked 8 Oct 2026
The company
- Company
- Rex describes itself as built by a small team in London and San Francisco.checked 4 Oct 2026
Where it runs
- Unapplied cash
- The cash application product monitors payments that have arrived but have not been allocated.checked 4 Oct 2026
- Unapplied cash review
- The product monitors payments that have arrived but have not been allocated.checked 8 Oct 2026
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