ExtendSim vs The Business School
ExtendSim
extendsim.comThe Business School
thebusiness.schoolSide by side
| Figure | ExtendSim | The Business School |
|---|---|---|
| Price from | $833.33/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 10 | 5 |
| Spec score · Business Simulation Software | 9.1 (#2) | 8.4 (#5) |
| API and SDK | ExtendSim exposes a rich API with thousands of built-in functions and an integrated development environment for compiled blocks. | The opened product, curriculum, licensing and IT pages provide no public API, SDK or developer documentation. |
| Integrations | Official connectivity includes Excel, Microsoft Access, Oracle, MySQL, SQL Server, XML and FTP through ODBC or ADO interfaces. | The opened pages describe curriculum alignment with AQA, Pearson Edexcel, OCR, Eduqas, WJEC, Cambridge, BTEC and IB courses but no external software integrations. |
| Support | The annual Maintenance & Support Plan covers download and installation help, troubleshooting, updates, upgrades and refreshed activation keys. | The founder page states that support is answered within 24 hours by a person familiar with the material. |
| What it does | ExtendSim is a modular simulation environment for modeling, simulating, analyzing and optimizing physical and logical processes. | The Business School is a browser simulation in which student teams run competing firms and make pricing, VAT, hiring, investment and negotiation decisions during a class lesson. |
Plans
ExtendSim
- Analysis RunTime (Individual)$495, paid once
- ExtendSim CP (Individual)$995, paid once
- ExtendSim DE (Individual)$3,495, paid once
- ExtendSim Pro (Individual)$4,995, paid once
- ExtendSim Cloud Subscription (up to 4 instances)Priced on request
- ExtendSim Cloud (up to 4 instances)$10,000 a year
- ExtendSim Cloud Subscription (up to 32 instances)Priced on request
- ExtendSim Cloud (up to 32 instances)$25,000 a year
- OEM license$50,000 a year
- OEM License$50,000 a year
The Business School
- Teacher demoFree
- A-Level Business: The Complete Year£49, paid once
- GCSE Business: The Complete Year£49, paid once
- MAT licencePrice not published
- School licencePrice not published
In their own words
ExtendSim
ExtendSim is process simulation software for decision-makers assessing improvement opportunities and system configurations. It supports customizable modeling logic, hierarchical subsystems, interactive user interfaces and exploration of design options. Features include reusable custom blocks, model hierarchies, simulation animation, 35 built-in distributions and statistical analysis tools. Data exchange options include Excel, ODBC and ADO databases, FTP and text files; Scenario Manager can export results to JMP or Minitab. ExtendSim Pro adds discrete-rate and reliability block diagramming capabilities to DE, while DE adds message-based discrete-event architecture to CP. It is a Windows application, with web also listed as a platform. Standard licenses require 64-bit Windows 10 or Windows 11; ARM configurations are not officially supported. Mac use requires installing Windows with an emulator such as Parallels or Boot Camp. The trial lasts 30 days from first launch and is limited to the downloader; it disables Multicore Analysis, watermarks models and cannot run on virtual machines. Individual license options are one-time purchases, with first-year Maintenance & Support included; CP costs $995, paid once, DE $3,495, paid once and Pro $4,995, paid once.
The Business School
The Business School is a browser-based classroom simulation where student teams run rival firms in a shared market during one lesson. Teams decide prices, hiring, loans, VAT, crises, and deals, with the effects visible in the simulation. Each session supports 6 to 32 students across up to eight firms of three or four. Teachers can pause or resume phases, trigger a crisis, review firm activity, and display a live leaderboard. Students join using a six-digit PIN and a team label or first name, without student accounts or email addresses. They can download private reports, while the teacher receives a curriculum-mapped class report by email within 48 hours. Knowledge Check questions are listed for 23 business courses, including AQA, Pearson Edexcel, OCR, Eduqas, WJEC, Cambridge, BTEC, and IB courses. Session data is stored in an EU database in Frankfurt; the company says it does not sell data or use it for advertising, and teachers can end a session at any time. A free teacher demo is listed. School and trust licence prices are by quote after the pilot. The Autumn 2026 pilot cohort is full, with a waitlist open.