100% offline
100% offline — engine, speech recognition, synthesis and AI all on device
Fluency Simulatorpractise real conversations against an on-device ai.
Practise real conversations against an on-device AI.
Conversation practice for professionals whose career depends on a second language — doctors, nurses, lawyers, salespeople, managers, support staff. The conversation engine, speech recognition, speech synthesis and AI all run on device. No API keys, no cloud, no per-token bills.
What it does
Fluency Simulator at a glance.
Practise real conversations against an on-device AI.
Animated on-device avatar for face-to-face practice
Animated on-device avatar for face-to-face practice
Scenario practice written for real professional situations
Scenario practice written for real professional situations
No API keys and no per-token cost
No API keys and no per-token cost
Inside the app
The actual application, not a mockup.
Captured from a local build of Fluency Simulator running on macOS.
Main
Fluency Simulator running on macOS.
Private by design
Native, local-first, and yours.
Fluency Simulator is a native Mac app distributed as a complete, fully activated download. No subscription, no account, and no tracking.
- 100% offline — engine, speech recognition, synthesis and AI all on device
- Animated on-device avatar for face-to-face practice
- Scenario practice written for real professional situations
- No API keys and no per-token cost
- Works on
- macOS
- Licence
- Donation download, fully activated
- Account
- None required
Support the project
Support the project and download Fluency Simulator.
Donate what you like to support the project and download the full app straight away. The download is the complete, fully activated app — every feature included. Each download link works once.
Fluency SimulatorNative MacComplete app. No account. No tracking.
Get the software
Support the project and download a build.
Donate what you like, pick your product, and download it right after checkout. You always receive the complete, fully activated app. Each download link works once and expires after a while.
FAQ
Common questions about Fluency Simulator
What is Fluency Simulator?
Conversation practice for professionals whose career depends on a second language - doctors, nurses, lawyers, salespeople, managers, support staff. The conversation engine, speech recognition, speech synthesis and AI all run on device. No API keys, no cloud, no per-token bills.
Does Fluency Simulator run on macOS?
Yes. Fluency Simulator is a native Mac app and runs on macOS.
Does Fluency Simulator need an account or an internet connection?
No. Fluency Simulator is distributed as a fully activated download on this site, with no subscription and no account to create.
How do I get Fluency Simulator?
Donate what you like on this page and download the complete app straight away. Each download link works once and expires after a while.