Side by side
Functionize vs pywinauto
Both stand on gui testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
Choose Functionize if you need plain-language test authoring, cross-browser runs, or a connection from an MCP-compatible coding agent. Consider Growth or Scale when the free plan’s included capacity is insufficient; Enterprise pricing requires contacting sales and has a 12-month minimum.
Visit Functionize Free plan Windows
Pick pywinauto for Python-based GUI automation on Windows, with a choice of Win32 and UI Automation backends. Look elsewhere if you need supported accessibility automation on Linux or macOS, or UI Automation for custom properties and controls.
Visit pywinautoThe facts
| Functionize | pywinauto | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Windows |
| Lowest paid plan | Growth: $20 a month | Free or on request |
| Plans published | 4 | 1 |
| Maker | Not published | Not published |
| Website | functionize.com | pywinauto.readthedocs.io |
| On gui testing software | #17 of 34 | #21 of 34 |
Functionize: what it does well
- Creates and maintains tests from plain-language descriptions.
- Runs tests across browsers and reads the application each run.
- Company says tests adapt to interface changes by identifying elements by what they are.
- Coding agents can connect through the Functionize MCP server.
- Enterprise options include private deployment and regional data residency.
What to know first
- Agent work stops when credits run out until replenished or the billing period restarts.
- Enterprise pricing is available through sales, with a 12-month minimum.
- Growth and Scale credit add-ons cost 10 USD for 200,000 credits during a billing period.
pywinauto: what it does well
- Automates Windows GUI controls with mouse and keyboard actions.
- Can retrieve text from applications.
- Supports Win32 API and Microsoft UI Automation backends.
- Can start applications or connect to running ones.
- Desktop navigation can cross process boundaries.
What to know first
- Linux accessibility support is a long-term plan.
- Apple Accessibility API support is a long-term plan.
- UI Automation does not support custom properties and controls.
Alternatives to Functionize Alternatives to pywinauto The whole list