Temperaments vs mTonal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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 descriptionHide 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.
mTonal
Read full descriptionHide full description
mTonal is an expressive 24-tone keyboard synth that can be used to smoothly glide across the frequency spectrum, something which is not possible with a regular MIDI keyboard controller. It can send MIDI information to digital audio workstations (DAWs) that support MIDI Polyphonic Expression (MPE), making this app extremely versatile for recording and processing microtonal MIDI data. Record audio files using the synth presets of the app and share them across other apps, email, or social media. BASICS Explore the world of quarter-tone music using this 24-tone keyboard. Blue keys between the white and black keys mark the quarter-tones. Switch between octaves using the octave controls on the upper-right corner of the keyboard. Choose between three keyboard layouts: one octave, two octaves, and seven octaves. The seven-octave layout gives you a wide range of tonal possibilities without taking the size of a grand piano. Use the warning button to clear any unreleased touches in the synth. MIDI FUNCTIONALITY Send MIDI information to various DAWs and software synthesizers that support MPE (MIDI Polyphonic Expression) like Logic Pro, Cubase, and Max/MSP. You have the option of using a wired, Wi-Fi, or Bluetooth MIDI connection, and you can change the connection anytime using the settings button on the upper-left corner of the keyboard. FEATURES Turn on gliding to smoothly transition between two notes and create a microtonal soundscape. Use the cents button to display the note's cents value for precise control over the pitch. Familiarize yourself with the keyboard’s layout using the notes button, which displays the note names on top of the keyboard. For more expressiveness in playing, activate the velocity feature to control note velocity based on the touch size. Hold notes for an extended period of time even after they have been released using the pedal. EFFECTS Apply delay and reverb to customize the sound. These effects only apply to the app's synth presets and will not be sent through MIDI out. RECORD, PLAY, SHARE Record and save your favorite tunes to the iPad. The files are saved in .m4a format. Once recorded, the audio files can be played back in the app. The files can be shared through email, social media, or between other apps. You can also organize your audio files and delete unwanted ones from the iPad to free up space.
Screenshots
Verdict
The clearest difference is update cadence: mTonal at fortnightly against Temperaments's every 30 months. Temperaments's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 13.0). On price, ads and in-app purchases 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
Temperaments costs $4.99 and mTonal $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Temperaments ships an update every 30 months, mTonal fortnightly. The most recent releases landed on June 3, 2026 and September 10, 2026 respectively.
| Parameter | Temperaments | mTonal |
|---|---|---|
| Price | $4.99 | $4.99 |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 30 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 22 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | HUMBLE EARTH PRODUCTIONS INC | Skeflect |
In-app purchases
Temperaments
No in-app purchases
mTonal
No in-app purchases
Questions
Is Temperaments free?
Is mTonal free?
Do Temperaments or mTonal have ads?
Which is updated more often, Temperaments or mTonal?
Other comparisons















