Comparison

Temperaments vs Hark

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

Hark

This app trains musicians to identify notes within a musical key, focusing on their relationship to the tonic. It offers various training modes, including single notes, melodies, and chord progressions, with hands-free operation for convenient practice.

Highlights
  • Identify notes as scale degrees
  • Hands-free training mode
  • Multiple training modes (degrees, melodies, chords, progressions)
  • Visual staff with colored notes
  • Explore any note in any key
  • Multiple instrument sounds
Features
Read full description

Hark trains your ear the way musicians actually hear: every note as a degree of the key, not a distance from the note before it. A cadence — or a drone — puts the tonic in your ear. A note sounds. You answer on a ladder of degrees, with the home note at the bottom like the ground. Then the note walks home, step by step, back to the tonic, so you hear the pull instead of reading about it. That walk is the explanation. There is no lecture. FOUR KINDS OF TRAINING • Degrees — one note at a time, from two degrees up to all twelve • Melodies — short phrases, name every note in order • Chords in the key — I, IV, V and the rest, heard by function • Progressions — three and four chords in a row INSIDE • A ladder of seven colours: tonic gold, dominant blue, leading tone red • Notes on a staff, spelled the way the key spells them • The walk home after every answer • Hands-free: train with the screen off, on a walk or in the car. The key, the note, a pause for your answer, then the answer spoken aloud. • Explore: hold any degree in any key and listen. No score, no history. • Five instruments: piano, guitar, strings, choir, electric piano • Your map: accuracy by degree and by chord, and what your ear mixes up • Ten languages, and a ladder labelled with numbers, movable-do syllables or note names — Do–Si, Do–Ti, H and B where they belong FREE, FOR GOOD Five degree levels in C major — up to all seven degrees across two octaves — two melody levels, two chord levels, the first progression level, hands-free training, the staff, a week of statistics, and all of Explore: every degree in every key, there to listen to. No daily cap, no timers. HARK PRO — MONTHLY, YEARLY OR ONCE Training in all twelve keys, chromatic degrees, minor keys, three octaves, all seven chords with sevenths, progressions, melodies up to five notes, custom drills, and the full map of your ear with four weeks of history. Choose a monthly or yearly subscription, with a one-week free trial for eligible customers, or a one-time purchase for permanent Pro access. Only one free trial is available per subscription group. After the trial, the selected subscription renews at the price shown in the app. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel them in your Apple Account subscription settings. To avoid a charge after a free trial, cancel at least 24 hours before it ends. The free levels stay free either way. NO ACCOUNT, NO ADS No sign-up, no ads, no streaks and no nagging. Your individual answers and detailed training history stay on your device. The app sends a limited set of usage events with a random installation identifier, including session summaries and purchase or free-trial events, to help us understand how it works. The privacy policy lists what is sent. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hark-ear.pages.dev/privacy

Screenshots

Temperaments2 screens
Hark4 screens

Verdict

The call

The clearest difference is price: Hark at Free against Temperaments's $4.99. Hark also leads on update cadence (every 2 days vs every 30 months) and rating (5.0 vs 4.7). Temperaments's advantage is in-app purchases (none vs 3) and iOS requirement (9.0 vs 17.0). On review sentiment, ratings volume, ads and device support 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

Hark is free to download; Temperaments costs $4.99 up front. Hark sells 3 in-app purchases, starting at $3.99 per month. Temperaments asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Hark holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Temperaments ships an update every 30 months, Hark every 2 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard6 real differences · 4 level
Temperaments versus Hark: the parameters behind the verdict, then further details
ParameterTemperamentsHark
Price$4.99Free — better
Rating4.7 (3 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better2
Update frequencyEvery 30 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size22 MB11 MB
Age rating4+4+
DeveloperHUMBLE EARTH PRODUCTIONS INCIlia Usatov

Customer experience

Temperaments

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

Hark

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Temperaments

No in-app purchases

3 purchases

Hark

Subscriptions2
  • Hark Pro — Monthly7 Days trial$3.991 Month
  • Hark Pro — Yearly7 Days trial$11.991 Year
One-time1
  • Hark Pro$19.99

Questions

Is Temperaments free?
Temperaments costs $4.99, with no in-app purchases.
Is Hark free?
Hark is free to download, with in-app purchases available.
Which has better reviews, Temperaments or Hark?
Hark is rated higher. Temperaments averages 4.7 out of 5 from 3 ratings, while Hark averages 5.0 from 2 ratings.
Do Temperaments or Hark have ads?
Neither Temperaments nor Hark shows ads.
Which is updated more often, Temperaments or Hark?
Temperaments ships an update every 30 months, and Hark every 2 days. Most recently, Temperaments was updated on October 24, 2026 and Hark on October 26, 2026.

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