Cairn
7.2#5 in user flow software€39 one-timeFree planmacOS
VisitCairn vs Software Ideas Modeler
Software Ideas Modeler
7.6#3 in user flow software$59 one-timeLinuxmacOSSelf-hostedWindows
VisitWhat both publish
| Fact | Cairn | Software Ideas Modeler |
|---|---|---|
| Founded | The Estonian register says the company entered the register on 18 August 2021. | 2009 |
| Headquarters | Tallinn, Estonia | LinkedIn lists Bratislava, Slovakia as headquarters. |
| Integrations | The maker describes Cairn as complementary to Figma for later visual design; no other product integrations are stated on the opened page. | Ultimate edition lists AI support through the OpenAI API, while the product also supports SVN and XMI import/export. |
| Offline operation | The product page says Cairn works offline without mandatory cloud services or an account. | After download and license retrieval, the current product can work fully offline except for features such as AI that need internet access. |
| Platforms | Cairn currently supports macOS on Intel and Apple Silicon, requires macOS 12 or later, and lists Windows and Linux as roadmap items. | The current version supports Windows 10 and Windows 11; older versions 13.x and earlier can run on Linux and macOS through Mono. |
| Product | Cairn is a macOS desktop app for discovery wireframing that models screens, data, roles and CRUD operations, then runs flows to catch missing data before building. | Software Ideas Modeler is a CASE tool for software and process design using UML, BPMN, SysML, ERD, flowcharts and other diagrams. |
Cairn plans
- FreeFree
- Pro — perpetual€39, paid once
Software Ideas Modeler plans
- Free trialFree
- Software Ideas Modeler starting price$59, paid once
- Premium—
- Professional—
- Standard—
- Ultimate—
Pick Cairn if…
Cairn may suit founders, product managers, agencies, freelancers, and technical teams who need to map flows and data before development. It is aimed at structural planning rather than polished visual design.
Pick Software Ideas Modeler if…
It suits software designers and process modelers who need a broad selection of diagram types, linked models, or code and database workflows. Teams can consider editions with cooperation tools, while users who need offline operation can work without an internet connection for most functions.