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Auphonic vs Castbox

Auphonic logo

Auphonic

Software

Automated audio mastering and loudness processing

From
Free
Rated
-
Full reviewWebsite
Castbox logo

Castbox

Software

Podcast & radio app for everyone

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Auphonic the free tier covers 2 hours of processed audio a month; Castbox app frequently crashes, requiring users to reload it to continue listening
  • They diverge on capability: Auphonic covers Automatic loudness optimization, Castbox covers Podcast app.

Where they differ

Only the attributes on which Auphonic and Castbox actually diverge.

Attributes where Auphonic and Castbox differ
AttributeAuphonicCastbox
Pricing modelfreemiumUnknown
PlatformsWebiOS, Android, Web, Radio, Audiobooks
Founded20102016

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Auphonic

  • Automatic loudness optimization
  • Noise reduction
  • Audio restoration
  • Intelligent processing
  • API integration
  • Auto-upload
  • Podcast hosts
  • Dropbox

Only in Castbox

  • Podcast app
  • Radio
  • Discovery
  • Offline listening
  • Sync
  • Smart devices
  • Podcast services
  • Account security

Both cover

  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Auphonic

  • Automatic loudness levelling and noise reduction on podcast audionot Castbox
  • Batch processing an archive of recordingsnot Castbox
  • Generating transcripts and chapters from an episodenot Castbox
  • Producing consistent output across multiple formats from one uploadnot Castbox

Castbox

  • Podcast listeningnot Auphonic
  • Radio streamingnot Auphonic

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Auphonic

  • The free tier covers 2 hours of processed audio a month
  • Billing is by audio duration with a 3 minute minimum per production, so many short clips cost more than the running time suggests
  • Multilingual speech recognition, automatic chapters and show notes all require a paid plan
  • Watch folders, batch productions and team accounts are paid features
  • Free output carries an Auphonic jingle

Castbox

  • App frequently crashes, requiring users to reload it to continue listening
  • Approximately half of saved podcasts do not automatically refresh or send notifications for new episodes
  • Free version displays unskippable minute-long ads that sometimes play as blank screens
  • Interface is described as cluttered with excessive focus on mainstream podcast recommendations
  • Tracking requirements for certain features like background playback limit privacy

Pricing, plan by plan

Auphonic

Free
  • FreeFree
    • 2 hours/month processing
    • Basic mastering
    • Download files
  • Personal$10/month
    • 50 hours/month
    • Advanced mastering
    • API access

Castbox

Free
  • FreeFree
    • 50+ million podcasts
    • On-demand radio
    • Audiobooks
  • Premium$null/custom
    • Ad-free listening
    • Advanced features
    • Contact for pricing

Which should you pick?

Choose Auphonic if

  • You need automatic loudness optimization.
  • You want to start without paying.
  • You also want noise reduction.
Auphonic review

Choose Castbox if

  • You need podcast app.
  • You want to start without paying.
  • You work on iOS, Android, Web, Radio, Audiobooks.
  • You also want radio.
Castbox review

Questions people ask

Is Auphonic or Castbox better?
Neither clearly leads. Auphonic starts at Free and Castbox at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Auphonic or Castbox?
Auphonic starts at Free and Castbox at Free.
Does Auphonic or Castbox run on more platforms?
Auphonic runs on Web. Castbox runs on iOS, Android, Web, Radio, Audiobooks.
Can I use Auphonic for free?
Both have a free tier, so you can try either at no cost before committing.
What is Auphonic best used for?
Auphonic is most often used for automatic loudness levelling and noise reduction on podcast audio, batch processing an archive of recordings, generating transcripts and chapters from an episode, producing consistent output across multiple formats from one upload. Of those, automatic loudness levelling and noise reduction on podcast audio and batch processing an archive of recordings are not what Castbox is typically brought in for.
What can Auphonic do that Castbox cannot?
Auphonic covers Automatic loudness optimization, Noise reduction, Audio restoration, Intelligent processing. Castbox covers Podcast app, Radio, Discovery, Offline listening. Both handle Web support.

Answered from the vendors’ own pages

Castbox: Is Castbox free and does it have paid tiers?

Castbox offers a free version with ads and limited features. A premium subscription is available but details on pricing were not disclosed on the main site. Free tier includes access to 50+ million podcasts, radio programs, and audiobooks.

Source
Castbox: What languages and regions does Castbox support?

Castbox supports content in 70 languages from 175 countries, making it one of the most internationally accessible podcast platforms.

Source
Castbox: Can I search for specific content across all episodes with Castbox?

Yes, Castbox pioneered an in-audio search feature using natural language processing that lets listeners search for keywords and topics across more than 50 million episodes.

Source
Castbox: What tools does Castbox offer for podcasters?

Castbox provides a Creator Studio with robust analytics for creators to measure subscribers, streams, and downloads. However, creators requiring comprehensive editing and production tools may find Castbox limited compared to specialized production software.

Source
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Related pages

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