Comparison

Temperaments vs Stereo Phaser

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

Head to head
About

Temperaments

Explore historical and unconventional musical tunings. This app allows you to retune MIDI files and live performances in real-time, offering instant comparisons between different temperaments and the ability to compose with unique sounds.

Highlights
  • Learn historical musical tunings
  • Retune MIDI files in real-time
  • Apply temperaments to live performances
  • Instant comparison of tunings
  • Compose with unconventional tunings
  • Export retuned MIDI files
Read full description

Temperaments: Tune your music and your ears. Temperaments is an application for learning about musical tunings and temperaments used throughout history. Want to play Bach in a tuning he actually used? Would you like to try early music as it was heard at the time? How about composing new music with an unconventional tuning? Temperaments tunes your music and your ears. Temperaments uses MIDI to retune your music on the fly. You can play any standard MIDI file, apply a temperament, and hear the result in real time. You can connect an external keyboard, let Temperaments retune your performance, and send it to any synthesizer you choose. You can even record your music to standard MIDI files and export them to play on any sequencer. Your recordings can be sent to anyone via email. They can be dropped onto Dropbox, and you can tell the world about them on Facebook, all from within Temperaments. Temperaments includes twenty six temperaments in addition to Equal Temperament, with both meantone and unequal-interval types. You can switch back to Equal Temperament instantly just by pressing a button for instant comparison - even while notes are sounding. You can even change to an entirely different temperament instantly, any time, even in the middle of a performance. Temperaments includes a large, expandable display showing the differences between Equal Temperament and a chosen temperament. And, of course, you can select any note to be the root key of any temperament, so that your temperament matches the key of any file or performance. Use Temperaments to learn about nonstandard tunings. Use Temperaments to compose new music in unusual ways. Or experiment with applying a temperament to your MIDI files. Any way you want to use it, Temperaments tunes your music and your ears.

About

Stereo Phaser

This audio effect app provides a stereo phaser with adjustable rate, depth, feedback, and stereo spread. It functions as an Audio Unit AUv3 plugin for hosts like GarageBand or as a standalone application for real-time audio processing.

Highlights
  • Stereo phaser effect
  • Adjustable rate, depth, feedback
  • Stereo spread control
  • Audio Unit AUv3 plugin
  • Standalone app mode
  • Real-time audio processing
Features
Read full description

That is nice phaser effect that can run in stereo mode. The app is Audio Unit AUv3. In stereo mode the signal is split and run through 2 phaser effects with different frequency settings but same rate, depth and feedback that are shifted in stereo space with the same rate(same as the phasers’) The app is an Audio Unit Effect AUV3 and can be used inside GarageBand or other AU host apps as an effect plug-in. Stereo Phaser can also run as a stand alone app adding effect to the audio input so you can play your guitar, bass or synth directly through the app if you have the connector to do so. Stereo Phaser controls: - Rate - that is the phaser speed - Depth - phaser depth - Feedback - effect feedback - Stereo - stereo spread

Screenshots

Temperaments2 screens
Stereo Phaser2 screens

Verdict

The call

The clearest difference is review sentiment: Temperaments at 100% against Stereo Phaser's 0%. Temperaments also leads on rating (4.7 vs 1.0) and ratings volume (3 vs 1). Stereo Phaser's advantage is price ($1.99 vs $4.99). On update cadence, ads, in-app purchases and monetization model 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

Temperaments costs $4.99 and Stereo Phaser $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Temperaments holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of Temperaments's written reviews are positive against 0% of Stereo Phaser's.

UpkeepUpdate frequency

Temperaments ships an update every 30 months, Stereo Phaser every 38 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Temperaments versus Stereo Phaser: the parameters behind the verdict, then further details
ParameterTemperamentsStereo Phaser
Price$4.99$1.99 — better
Rating4.7 (3 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 30 months — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better10.0
Further details — not scored
Size22 MB10 MB
Age rating4+4+
DeveloperHUMBLE EARTH PRODUCTIONS INCAleksandar Mlazev

Customer experience

Temperaments

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stereo Phaser

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Temperaments

No in-app purchases

None

Stereo Phaser

No in-app purchases

Questions

Is Temperaments free?
Temperaments costs $4.99, with no in-app purchases.
Is Stereo Phaser free?
Stereo Phaser costs $1.99, with no in-app purchases.
Which has better reviews, Temperaments or Stereo Phaser?
Temperaments is rated higher. Temperaments averages 4.7 out of 5 from 3 ratings, while Stereo Phaser averages 1.0 from 1 ratings.
Do Temperaments or Stereo Phaser have ads?
Neither Temperaments nor Stereo Phaser shows ads.
Which is updated more often, Temperaments or Stereo Phaser?
Temperaments ships an update every 30 months, and Stereo Phaser every 38 months. Most recently, Temperaments was updated on October 24, 2026 and Stereo Phaser on October 24, 2026.

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