Your voice is the fastest keyboard.
Speak, and Flash will write, refine, and paste text for you. A native macOS assistant that turns a stream of thoughts into a perfect message in seconds -right where you're working.
macOS 14+ · Apple Silicon & Intel
Windows, iOS, Android? Coming soonThree steps. Literally.
No app-switching or manual copy-pasting. Flash works silently in the background, right where your cursor is.
- 01Fn
Hold Fn
Just press a single key. Whether you have Slack, a code editor, or a browser open, the app instantly starts listening.
- 02
Just speak
Speak completely naturally, pause whenever you want, and use your industry jargon. The assistant intelligently removes any stutters and flawlessly handles a smooth mix of languages.
- 03
Release and done
Formatted, ready-to-send text instantly appears in your active window. Say goodbye to manually fixing typos and missing commas forever.
Think. Speak. Done.
Your voice becomes ready-made text right where you need it. Faster, easier, and more natural than ever.
Speak freely. Flash writes for you.
Flash floats above every window and turns your thoughts into ready, formatted text. It understands the context of what’s on your screen.
In the first quarter of 2026, the sales team achieved record-breaking results across all European markets.
Select. Command. Done.
Forget switching between translators and ChatGPT. Select any text, say what you want done, and Flash replaces it in a split second. Perfect for emails, notes, and code.
Use cases
Under the hood
Your custom dictionary
Teach Flash your jargon – client names, medical terms, corporate abbreviations. The assistant will always spell them correctly from then on.
100% offline privacy
Choose offline models – no data ever leaves your Mac. Full transcription with Metal GPU acceleration, no internet required.
Your own API keys
Plug in keys from OpenAI, Google, Groq, or xAI and pay only for what you actually use. Zero middlemen.
What’s new in Flash 1.3
Record meetings, import audio, and turn transcriptions into notes with one click.
Meeting recording
ProDouble-tap Fn to start recording. Transcribed with the highest-quality PRO: Studio model.
Summarize meeting
ProOne click generates a concise summary with key takeaways and action items.
Audio import
ProImport .mp3, .m4a, .wav, and .caf files. Flash transcribes them with the fast PRO: Turbo model.
Your words stay yours
Flash was built privacy-first. Here’s how it compares to a typical voice app.
| Privacy & Engine: Private (Flash) | Other apps |
|---|---|
History encrypted (AES-256)Tak Your dictations are scrambled so only you can read them | Nie |
Audio stored on serverTakNever Your voice recording is never saved anywhere in the cloud | Tak |
Full offline modeTak Works without internet - nothing leaves your Mac | Nie |
API keys in KeychainTak Passwords for AI services are locked in the macOS vault | Nie |
Telemetry off by defaultTak No usage tracking unless you opt in | Nie |
Cloud processing with zero data storageTak The server transcribes and forgets - nothing is kept | Nie |
All privacy features are built into every version of Flash.
Start for free. Go Pro when you’re ready.
Use the core features completely free with no time limit. When you need the full power of AI, unlock the Pro plan.
Free
Basic transcription running entirely locally on your Mac. Maximum privacy guaranteed.
- Unlimited offline transcription
- Encrypted on-device history
- 100% privacy - zero cloud data
- Custom industry dictionary
- Floating Teleprompter
- Dictation history
Pro
Get an intelligent assistant that automatically corrects every mistake and accelerates your coding workflow.
- Everything in the Free plan
- Intelligent real-time text correction
- Smart AI assistant with web search
- True Vibe Coding for developers
- Meetings: recording, audio import & AI Editor
- Cloud transcription PRO: Cloud Turbo (zero-retention)
- Offline models PRO: Turbo (1.6 GB) & PRO: Studio (2.9 GB)
- Premium privacy - best quality without compromises
- Use on up to 3 devices
Questions before you start
Can’t find what you’re looking for?
Email us at kontakt@appfly.pl
General & getting started
Hold the Fn key and Flash records your voice. When you release it, the text is transcribed, optionally processed by AI (in the Pro version punctuation and style are refined), and automatically pasted into the active text field. The entire process takes 1-3 seconds. Flash automatically detects silence and never sends empty audio to the API.
All of them. Flash works globally across macOS - in browsers, text editors, Slack, Teams, email, VS Code, Figma, and anywhere there’s an active text field.
macOS 14+ (Sonoma) with Apple Silicon or Intel. Flash is a native SwiftUI menu-bar app. It takes up about 15 MB and generates zero system load when idle. On first launch Flash will ask for three permissions: Microphone, Speech Recognition, and Accessibility.
Flash is currently a 100% native macOS app, which lets us deliver maximum performance and deep system integration with Apple. Windows, iOS, and Android versions are on the roadmap though! Check it out. Go to the roadmap
The app itself is ~15 MB. If you want to use offline transcription, you’ll need extra space for the model: Economy (466 MB), Turbo (1.6 GB - recommended), or Studio (2.9 GB). Models are downloaded once.
Features & functionality
Select any text in an app, hold Fn, and say an instruction - for example “translate to Spanish,” “shorten by half,” or “make it more formal.” Flash replaces the selected text according to your instruction. Works in any app with a text field (except the terminal).
15 languages: English, Spanish, Portuguese, German, Italian, French, Dutch, Russian, Swedish, Turkish, Japanese, Korean, Chinese, Hindi, and Polish. Flash supports mixed bilingual text in a single utterance, seamlessly blending your native language with English technical terms.
Yes. The 100% offline mode works when "Privacy & Engine" is set to "Private" - in this mode, transcription runs locally on your Mac with Metal GPU acceleration, without internet or cloud data. You can choose from three models: Economy (466 MB), PRO: Turbo (1.6 GB - recommended), and PRO: Studio (2.9 GB). AI text correction requires an internet connection.
No. Audio is processed in RAM in real time and immediately discarded - it never hits the disk. When you use cloud transcription, audio is sent through our zero-retention proxy: the provider processes it in memory and returns the text without storing anything. Only the transcribed text is then sent to AI - never the voice recording itself. API keys are stored in the macOS Keychain. You can also use offline transcription for fully local processing without sending anything at all.
Flash uses TelemetryDeck for anonymous, aggregated usage stats (e.g., recording duration in ranges, word counts in ranges). The content of your dictations is never analyzed, stored, or transmitted for analytics purposes. Zero user identification.
Multiple layers. All dictation history is encrypted with AES-256-GCM on your device. API keys are stored in the macOS Keychain, never in plain text. Cloud transcription goes through a stateless zero-retention proxy - the provider processes audio in memory and returns the transcript without storing anything. Telemetry (TelemetryDeck) is anonymous and off by default. And you can always use offline models for 100% local processing with nothing leaving your Mac.
Never. Flash's AI script enrichment (e.g., adding breathing pauses, word emphasis, and director cues in the Teleprompter) never modifies your text without your knowledge. Flash always launches Review Mode: AI-suggested changes are clearly highlighted, and you approve or discard all of them with a single click - returning to your original if needed. Full control, always in your hands.
Account & billing
Free gives you unlimited offline transcription, encrypted on-device history, 100% privacy with zero cloud data, custom industry dictionary, Floating Teleprompter, and dictation history. Pro adds intelligent real-time text correction, a smart AI assistant with web search, True Vibe Coding for developers, Meetings with audio recording, file import and AI Editor, cloud transcription PRO: Cloud Turbo (zero-retention), additional offline models PRO: Turbo (1.6 GB) and PRO: Studio (2.9 GB), premium privacy, and use on up to 3 devices.
Yes! Flash supports API keys from four AI providers: • Gemini (Google) - text correction, AI assistant, web search • OpenAI - text correction, AI assistant • Groq - text correction, cloud voice transcription (Whisper Turbo) • xAI (Grok) - AI assistant, web search, text correction Keys are securely stored in the macOS Keychain. Your own keys unlock advanced text correction, the AI Assistant, and cloud voice transcription - without buying Pro.
Yes, anytime through the Stripe customer portal. No hooks, no notice period. After canceling you keep access to Pro features until the end of your paid period. You’re in full control.
Open Flash on the new device. When the purchase screen (Paywall) appears, click “I already have Flash Pro.” Enter the email you used at checkout, click “Send code,” then type the 6-digit verification code sent to your email. A single license works on up to 3 Macs.
Ready to speak instead of type?
Download Flash for free and see how much time you save every day.
macOS 14+ · Apple Silicon & Intel · Free version with no limits · 15 languages
On a different platform?
We’re working on Windows, iOS, and Android versions. Check our roadmap and stay in the loop.
Roadmap