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Diction
Type and edit 5x faster with your voice in any app.
Diction is a voice (speech-to-text) iOS keyboard that works in any app. No word limits, no daily caps. AI Companion edits as you dictate: say translate this or make it more formal, and Diction rewrites your text on the spot. Runs on-device, audio never leaves your iPhone, in the cloud, or fully self-hosted on your own server. Private by design: zero analytics, zero tracking, zero data collection. Automatic multilingual, speak in your language. Install to try it, or self-host tonight.
Hey Product Hunt, I'm Ondrej, solo developer of Diction.
The idea behind it: the keyboard is the interface between you and text, and increasingly between you and AI. Most voice apps bolt an AI feature onto a stock keyboard. Diction owns the keyboard itself: transcribe, translate, and edit, all by voice, all in one button.
The part that's hardest to find anywhere else: editing existing text by voice. Select a sentence, say what's wrong, Diction rewrites only that part in the tone of what's around it. We call it typing and editing 5x faster with your voice.
Under the hood, the keyboard is engineered in-house rather than bolted onto a stock layout. Autocorrect runs on a custom C++ engine we built from scratch, tuned for speed and accuracy. The app itself runs on-device, in the cloud, or fully self-hosted, same app either way.
The self-hosted part is what I'm most excited to share here. The gateway is open-source (Go, MIT licensed, on GitHub) and speaks the standard OpenAI transcription API, so it works with any speech model you want to run. Clone the repo, run docker compose up -d, point it at your own model, and every recording stays on hardware you control. No account, no usage limits, no telemetry.
If self-hosting isn't your thing, on-device and cloud modes both support 99 languages: on-device runs fully offline with no server at all, cloud needs zero setup.
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About Diction on Product Hunt
“Type and edit 5x faster with your voice in any app.”
Diction was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #101 on the daily leaderboard. Diction is a voice (speech-to-text) iOS keyboard that works in any app. No word limits, no daily caps. AI Companion edits as you dictate: say translate this or make it more formal, and Diction rewrites your text on the spot. Runs on-device, audio never leaves your iPhone, in the cloud, or fully self-hosted on your own server. Private by design: zero analytics, zero tracking, zero data collection. Automatic multilingual, speak in your language. Install to try it, or self-host tonight.
Diction was featured in Open Source (68.7k followers), Developer Tools (517.5k followers) and Artificial Intelligence (475.9k followers) on Product Hunt. Together, these topics include over 207.2k products, making this a competitive space to launch in.
Who hunted Diction?
Diction was hunted by Ondrej Machala. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Diction stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Ondrej Machala
Hey Product Hunt, I'm Ondrej, solo developer of Diction.
The idea behind it: the keyboard is the interface between you and text, and increasingly between you and AI. Most voice apps bolt an AI feature onto a stock keyboard. Diction owns the keyboard itself: transcribe, translate, and edit, all by voice, all in one button.
The part that's hardest to find anywhere else: editing existing text by voice. Select a sentence, say what's wrong, Diction rewrites only that part in the tone of what's around it. We call it typing and editing 5x faster with your voice.
Under the hood, the keyboard is engineered in-house rather than bolted onto a stock layout. Autocorrect runs on a custom C++ engine we built from scratch, tuned for speed and accuracy. The app itself runs on-device, in the cloud, or fully self-hosted, same app either way.
The self-hosted part is what I'm most excited to share here. The gateway is open-source (Go, MIT licensed, on GitHub) and speaks the standard OpenAI transcription API, so it works with any speech model you want to run. Clone the repo, run docker compose up -d, point it at your own model, and every recording stays on hardware you control. No account, no usage limits, no telemetry.
If self-hosting isn't your thing, on-device and cloud modes both support 99 languages: on-device runs fully offline with no server at all, cloud needs zero setup.
Two ways to jump in: install Diction and tell me what breaks (https://apps.apple.com/app/id675...), or clone the gateway and self-host it tonight (https://github.com/omachala/diction). Both are genuinely useful signal for me right now.
I'm here all day to answer questions.