Comparison

Matrix Vocoder vs MP3 Tag Editor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Matrix Vocoder

Transform your voice into an electronic instrument with this app, simulating classic analog vocoder sounds. It analyzes input signals, performs spectral analysis, and reassembles synthetic speech using filter banks and replacement signals.

Highlights
  • 32 channel filterbank with analog filters
  • Stereophonic synthesis with alias-free oscillators
  • External carrier input
  • Voiced/Unvoiced detection and pitch tracking
  • Formant shift
  • Patchbay for channel connection
  • 16 internal oscillators for choir sounds
Features
Read full description

Matrix Vocoder transforms your voice into an electronic instrument! The Vocoder was invented by Homer Dudley in the mid-30's of the last century. Dudley worked at Bell Laboratories, and this is where the first Vocoder took shape. The Matrix Vocoder is designed to properly simulate the classic analog Vocoder sound made famous e.g. by the music of the german band Kraftwerk. At there last world tour they used in fact the PC version of our Matrix Vocoder on stage ! The epic Cylon Robot voice is The basic function of a Vocoder is characterised by an analysis of the input signal, usually speech but other type of inputs can also be very interesting. In a special filter bank, a spectral analysis is performed and signals are developed which follows the amount of spectral energy in each channel. Another part of the analyser tests if there are unvoiced or voiced sounds at any particular time and extracts the pitch of the voiced sounds. The output section of the vocoder consists of a stereophonic synthesis filter bank which assembles the new synthetic speech from the characteristic filter envelopes from the analysis stage together with an external or internal replacement signal. - 32 channel Filterbank with 8-pole Butterworth analog filters - Stereophonic synthesis with analog modelled alias free oscillators. - External carrier possible ( left channel = voice / right channel = carrier ) - Voiced/Unvoiced detection - Pitch tracking - Formant shift - Matrix uses patchbay to connect analysis and synthesis channels. - Pan position and level for each channel. - 16 internal oscillators with unlimited voices for choir like sounds. - Stereo wide panorama parameter for internal generator. - Optional monophonic generator with Glide setting. - Internal noise generator. - Effect AudioUnit and Music Effect AudioUnit - stand alone / Audiobus 3 / IAA

About

MP3 Tag Editor

Organize your music library by editing song titles, artist names, and album art directly on your iPhone or iPad. This app allows you to correct metadata, add cover images, and manage audio files without needing a computer. It supports a wide range of audio formats and offers batch editing capabilities.

Highlights
  • Edit song title, artist, album, genre, composer
  • Update and search for album art
  • Supports MP3, M4A, FLAC, and more formats
  • Batch edit multiple files at once
  • Preview tracks before saving
  • Organize by song, album, artist, or folder
Features
Read full description

Wrong song titles, missing artists, blank album covers? MP3 Tag Editor fixes your music metadata right on your iPhone or iPad - no computer needed. Open a track, correct its details, add the right cover art and save. Your songs show up with the right information in the players and apps you use. EDIT SONG INFO IN A FEW TAPS - Change the title, artist, album, genre and composer - Correct typos and inconsistent artist names - Preview a track with the built-in play button before you save UPDATE ALBUM ART - Add cover art to songs that have none - Replace low-quality or wrong covers with your own image - Search for album artwork and apply it to your track WORKS WITH YOUR AUDIO FILES - MP3, M4A, MP4, FLAC, OGG, WAV, WMA, AIF, AIFF, DSF, M4B and more - Browse recent files by song, album, artist or folder - Runs on iOS 13 and later BUILT FOR - Music collectors cleaning up years of downloads - DJs who need correct titles and artists in their crates - Anyone using an iPhone as a dedicated music player - People who want a tidy library without desktop software [VERIFY] EDIT SEVERAL FILES AT ONCE - Select multiple tracks and update shared details like artist, album or genre [VERIFY] PRIVATE BY DESIGN - Your files are edited on your device. We do not collect your data. Download MP3 Tag Editor and give your music library the details it deserves. Privacy Policy: https://visionaso.in/manager/privacypolicy.html Terms of Use: https://visionaso.in/manager/termscondition.html

Screenshots

Matrix Vocoder4 screens
MP3 Tag Editor4 screens

Verdict

The call

The clearest difference is price: MP3 Tag Editor at Free against Matrix Vocoder's $5.99. MP3 Tag Editor also leads on rating (5.0 vs 4.2) and update cadence (every 7 months vs every 15 months). Matrix Vocoder's advantage is in-app purchases (none vs 1) and ratings volume (19 vs 1). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

MP3 Tag Editor is free to download; Matrix Vocoder costs $5.99 up front. MP3 Tag Editor sells 1 one-off in-app purchase. Matrix Vocoder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MP3 Tag Editor holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Matrix Vocoder has 19 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Matrix Vocoder ships an update every 15 months, MP3 Tag Editor every 7 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Matrix Vocoder versus MP3 Tag Editor: the parameters behind the verdict, then further details
ParameterMatrix VocoderMP3 Tag Editor
Price$5.99Free — better
Rating4.2 (19 ratings)5.0 (1 ratings) — better
Positive reviews41.7% of reviews—
Number of ratings19 — better1
Update frequencyEvery 15 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size9 MB63 MB
Age rating4+4+
DeveloperHarry GohsAshvin Kevadiya

Customer experience

Matrix Vocoder

All ratings20 ratings
Positive85.0%
Neutral0.0%
Negative15.0%
Written reviews12 reviews
Positive41.7%
Neutral16.7%
Negative41.7%

MP3 Tag Editor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Matrix Vocoder

No in-app purchases

1 purchases

MP3 Tag Editor

One-time1
  • Lifetime Premium$9.99

Questions

Is Matrix Vocoder free?
Matrix Vocoder costs $5.99, with no in-app purchases.
Is MP3 Tag Editor free?
MP3 Tag Editor is free to download, with in-app purchases available.
Which has better reviews, Matrix Vocoder or MP3 Tag Editor?
MP3 Tag Editor is rated higher. Matrix Vocoder averages 4.2 out of 5 from 19 ratings, while MP3 Tag Editor averages 5.0 from 1 ratings.
Do Matrix Vocoder or MP3 Tag Editor have ads?
Neither Matrix Vocoder nor MP3 Tag Editor shows ads.
Which is updated more often, Matrix Vocoder or MP3 Tag Editor?
Matrix Vocoder ships an update every 15 months, and MP3 Tag Editor every 7 months. Most recently, Matrix Vocoder was updated on November 3, 2026 and MP3 Tag Editor on November 5, 2026.

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