Async vs Resound

Async is an online AI video editor where users create and edit videos through chat. It can remove filler, pauses, repetitions, bad takes, and awkward moments. Magic Dust reduces background noise and clarifies voices, while chat can generate B-roll, visuals, scenes, or music within an edit. Users can add subtitles and turn moments from longer videos into short-form clips. Async presents the workflow for ads, vlogs, explainers, podcasts, and other formats, and says it is built for creators and teams. Its browser-based remote interview feature supports up to 10 participants with separate tracks; local recording and automatic transcription are also listed. The Voice API supports text-to-speech and speech-to-text, including streaming over WebSockets. Async is available on the web and iOS, with no Android version listed. The Free plan is free and includes 10 lifetime AI credits, one hour of media upload to AI chat, exports up to 720p, and 2 GB storage. Paid pricing starts at $11.99/mo (annual).

Resound is an AI audio-editing app built to automate parts of podcast cleanup. It detects filler sounds such as ums and ahs, and finds silences longer than three seconds for users to consider shortening. Editors can review suggested changes and trim audio by dragging. Enhance tools remove background noise, level and normalize sound, and prepare it for export. Resound accepts single-track and multitrack uploads, with WAV, MP3, or AAF exports as merged files or separate tracks. The Free plan provides 20 minutes of processed audio, one track per project, one-day project storage, trimming, filler and silence detection, and MP3 export. Creator costs $15 a month and includes four processing hours, two tracks per project, and 15-day storage. A 14-day trial offers one hour of AI processing and access to all features. Processing is charged per project according to its longest file, and unused hours expire at billing-period end. The API returns AI edit predictions in JSON, but access requires approval.