Mayday vs OneStream
Mayday
getmayday.com
OneStream
onestream.comSide by side
| Figure | Mayday | OneStream |
|---|---|---|
| Price from | £10/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 15 | 1 |
| Spec score · Intercompany Accounting Software | 8.8 (#2) | 8.0 (#13) |
| Spec score · Financial Close Software | 8.8 (#3) | 8.0 (#8) |
| AI | Mayday AIR uses accounting principles and business context to suggest actions, and the maker says it is not trained on private customer data without permission. | Its SensibleAI portfolio includes Forecast, Studio, and Agents, which OneStream says are embedded in finance workflows. |
| Founded | LinkedIn gives Mayday’s founding year as 2021. | 2012 |
| Headquarters | United Kingdom | Birmingham, Michigan, United States |
| Integrations | Mayday connects with Xero, QuickBooks Online and Intuit Enterprise Suite; product pages describe one-click posting back to the accounting systems. | OneStream says it connects to over 250 ERP, CRM, and other data sources, including SAP, Oracle, and Workday, using connectors and REST APIs. |
| Purpose | Mayday is a month-end platform for finance teams using Xero, QuickBooks Online, or Intuit Enterprise Suite. | OneStream describes its product as a unified, AI-powered platform for financial and operational data, planning, forecasting, close, reporting, and analytics. |
| Security | The security page lists encryption in transit and at rest, SSO and MFA via Xero and Intuit, role-based access controls, and 24/7 infrastructure monitoring. | OneStream documents TLS 1.2 or greater for data in transit, AES-256 or equivalent encryption at rest, and support for bring-your-own-key management. |
| Support | The pricing FAQ says in-app support chat receives a personal response within hours, often within minutes. | The customer support portal provides a knowledge base, documentation, release notes, and a community message board; OneStream also describes remote implementation consultants. |
Plans
Mayday
- BasicFree
- BasicFree
- Accrued Costs£10 a month
- Accrued Revenue£10 a month
- Active£10 a month
- Advanced£10 a month
- Deferred Revenue£10 a month
- Passive£10 a month
- Recharger Lite£10 a month
- Flux£12.50 a month
In their own words
Mayday
Mayday is a web-based month-end platform for finance teams using Xero, QuickBooks Online or Intuit Enterprise Suite. It identifies missing or incorrect entries, calculates adjustments for review and approval, then posts approved journals to Xero or QuickBooks. Its products include Flux, Prepayments, Accruals, Deferred Revenue, Balancer, Mayday HQ, BRAG and Recharger. Mayday AIR suggests actions using accounting principles and business context; the maker says it will not train AIR on private customer data without permission. The platform supports approval workflows, audit trails, multi-entity close and recurring templates. The Basic plan is £0/mo, and a 30-day free trial does not require card details. The pricing note lists paid access from £12.50/mo when billed annually, while several listed plans are £10/mo. QuickBooks Online has restrictions: BRAG and Mayday HQ are unavailable, and some functions in Balancer, Recharger, Deferred Revenue and Prepayments are limited. Mayday says its service runs on AWS, with data storage and processing in the London region. It lists encryption, SSO and MFA via Xero and Intuit, role-based access controls and 24/7 infrastructure monitoring.
OneStream
OneStream is an enterprise finance platform that brings financial and operational data together for finance teams. It supports financial close and consolidation, reporting, account reconciliations, transaction matching, tax provisioning, budgeting, rolling forecasts, scenario analysis, and workforce planning. Dashboards, charts, reports, and drill-back to source data support analysis, while connectors and REST APIs link to more than 250 ERP, CRM, and other data sources, including SAP, Oracle, and Workday. OneStream also lists SensibleAI Forecast, SensibleAI Studio, and SensibleAI Agents. The platform provides audit trails and supports US GAAP, IFRS, SOX controls, and lease accounting. Access options include web, Windows applications, APIs, and SaaS or self-hosted deployments; reports and dashboards adapt to different devices. The software is paid, with pricing on request. Visitors can schedule a free personal demo, but no free trial is stated.