AudioPen
Free tierSpeak like a human. Write like a pro — voice to polished text in any style.
Free tier available·All audiences·API available
Key strengths
Converts rambling voice notes into clear, structured, polished textSupports custom and preset writing styles — including training it to mimic your own voiceCross-language transcription and rewriting (speak in one language, output in another)One-time payment model with no subscriptions or auto-renewalsAvailable across iOS, Android, macOS, Apple Watch, and Chrome Extension
Free tier + paid plans · from $33 USD/mo
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AudioPen is a cloud-based voice processing application built by Nicheless Inc. that combines speech-to-text transcription with AI-driven rewriting. It exposes webhook and Zapier integrations, enabling developers and power users to pipe transcribed notes into external workflows and apps. The platform supports audio file uploads in addition to live recordings (up to 15 minutes per session), and includes a text upload/processing mode. Native apps for iOS, macOS, and Android, alongside a Chrome Extension, allow the tool to operate as a system-wide writing assistant through OS-level integrations on Apple platforms.