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AI Tool Comparison

Comparing as AI Podcast & Audio Editing
Async vs Auphonic

VS
Async official logo and brand icon

Async

Freemium
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Auphonic official logo and brand icon

Auphonic

Freemium
Visit WebsiteFull Review

Verdict by Category

Detailed category analysis is not available for this comparison.
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Feature & Spec Matrix

Detailed Comparison20 Criteria

Complete side-by-side breakdown of specifications, capabilities, and feature parity

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Feature / Spec
Async
Async
Auphonic
Auphonic
Pricing Model
FreemiumAsync offers a permanently free Basic plan ($0/month, no credit card required) with limited AI credits and recording hours. Essentials is $11.99/month (about $7.19/month billed annually, ~40% savings) and includes AI credits, transcription, AI clips/subtitles/reframing, TTS characters, cloud storage, and 4K export. Pro is $23.99/month (about $14.39/month annually) and adds higher credit allowances, AI Dubbing with Lipsync, Revoice voice cloning, and access to AI video/image generation models. Teams pricing is per user with expanded credits, unlimited recording studios, Producer Mode, and brand kit features (contact sales for exact per-seat rate). Business/Enterprise plans are custom-priced with advanced security and support; contact the Async sales team. All paid plans include a 7-day free trial, and existing Podcastle subscriptions carried over unchanged after the rebrand.
FreemiumFree plan: 2 hours of processed audio per month, all basic algorithms included, but output files carry an Auphonic jingle. Recurring Credits (Monthly & One-Time tier, cheaper when billed yearly): Auphonic S at roughly $13/month (about $11/month billed annually) for 9 hours/month; Auphonic M at roughly $27/month ($23/month annually) for 21 hours/month; Auphonic L at roughly $53/month ($45/month annually) for 45 hours/month; Auphonic XL at roughly $105/month ($89/month annually) for 100 hours/month; an XXL tier covers 250 hours/month, and custom Business contracts exist beyond 1000 hours/month. One-Time Credits are also sold in blocks from 5 hours up to 3000+ hours, never expire, and can auto-renew when the balance runs low. Paid tiers unlock multilingual speech-to-text, automatic shownotes/chapters, watch folders, and batch productions; yearly and Business plans add priority processing, team accounts, and priority support. Billing is based on processed audio duration with a 3-minute minimum per production.
Starting Price
Difference
$10/mo (Creator) or Free
$11/mo
Free Plan & Trial Scope
Difference
Free plan includes basic async video/voice messaging, standard cloud storage, and automated transcripts
Free plan includes 2 hours of processed audio every month with full mastering and leveling algorithms
User Rating Score
Unrated
Unrated
Ideal Workflow / Use Case
Difference
Asynchronous team video messaging, remote podcast recording, AI-powered audio cleanup, and automated clip generation
Automated podcast mastering, loudness leveling to industry standards, noise reduction, and multitrack voice balancing
Enterprise & Scalability
Difference
4K local recording, multi-track audio/video separate stem download, custom branding, AI clip highlight generator, and SSO team management
Intelligent Leveler, Multitrack processor with cross-gating/ducking, Loudness Normalization (EBU R128, ATSC A/85, Spotify/Apple Podcasts standards), Whisper speech-to-text, and automated cloud publishing (YouTube, Libsyn, Podbean, S3)
Core Categories
Difference
AI Video ToolsAI Audio & Music ToolsAI Developer APIs & Platforms
AI Audio & Music ToolsAI Video Tools
Remote multi-track recording for up to 10 participants with local device capture
Difference
Async Advantage
Not listed
Magic Dust one-click AI audio enhancement: noise removal, silence removal, auto leveling
Supported
Supported
Transcript-based audio and video editing (edit by deleting text)
Supported
Supported
AI subtitles and translated captions in 70+ languages
Difference
Async Advantage
Not listed
AI Dubbing with Lipsync for multilingual video localization
Supported
Supported
Revoice AI voice cloning for fixing recordings without re-recording
Difference
Async Advantage
Not listed
Access to 100+ third-party AI models for video, image, avatar, and music generation
Difference
Async Advantage
Not listed
Developer Voice API for low-latency text-to-speech and voice cloning integrations
Difference
Async Advantage
Not listed
AI-powered noise and reverb reduction with adjustable intensity
Difference
Not listed
Auphonic Advantage
Intelligent adaptive leveler that balances speaker, music, and speech volume
Difference
Not listed
Auphonic Advantage
AutoEQ, De-Esser, De-Plosive filtering, and bandwidth extension for clearer voice
Difference
Not listed
Auphonic Advantage
Automatic cutting of filler words, coughs, throat-clearing, and silence in multiple languages
Difference
Not listed
Auphonic Advantage
Loudness normalization to podcast, streaming, broadcast, and ACX audiobook specifications
Difference
Not listed
Auphonic Advantage
Async icon

Async Pros & Cons

Pros

  • Permanent free plan with no credit card required to start
  • Combines recording, editing, dubbing, and AI generation in a single subscription instead of a stack of separate tools
  • Transcript-based editing significantly speeds up audio and video cleanup for non-editors
  • Access to leading third-party video/image generation models (Kling, Sora, Veo) inside the same workspace
  • SOC2 certified and GDPR compliant, with existing Podcastle accounts migrated seamlessly

Cons

  • Rebrand from Podcastle to Async can confuse long-time users searching for the old name
  • Credit-based system for AI generation features adds complexity on top of the subscription price
  • Some users report bugs, crashes, or inconsistent results with AI audio/video tools
  • Advanced features like AI Dubbing and voice cloning are gated behind Pro or higher plans
  • Mobile app experience lags behind the desktop/browser editor
Auphonic icon

Auphonic Pros & Cons

Pros

  • Generous free tier of 2 hours per month with all core algorithms included
  • One-click automated processing requires no audio engineering expertise
  • Strong multitrack support with mic bleed removal and per-track denoising
  • Broad platform integrations for file transfer, publishing, watch folders, and Zapier
  • Free CLI and full API make it easy to integrate into existing workflows
  • Trusted by large broadcasters like BBC Radio and iHeartRadio as well as independent podcasters

Cons

  • No timeline or waveform editor; it is a finishing/mastering layer, not a full audio editor
  • Free plan output includes an Auphonic jingle and multitrack use is capped under 20 minutes
  • Speech-to-text accuracy is solid but trails dedicated transcription services like Rev or Otter.ai
  • Watch folders and batch productions are locked behind paid plans
  • Interface design is functional but visually dated compared to newer competitors
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