UltraTap Delay vs Hark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UltraTap Delay
Create rhythmic delays, glitchy reverbs, and evolving soundscapes with up to 64 taps. This app offers unique controls for shaping sound, including LFOs, envelopes, and a "Slurm" control for smearing and modulation. Explore over 150 inspiring presets and innovative performance features.
- Up to 64 taps for complex delays
- Spread knob for rhythmic spacing
- LFOs and envelopes for stutter effects
- Slurm control for unique modulation
- Stereo image control
- Over 150 presets
- Ribbon and Hotswitch controls
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UltraTap is a unique multi-tap effect capable of rhythmic delays, glitchy reverbs, huge pad-like volume swells and extraordinary modulation. It’s the perfect tool for creating drum fills, vocal choruses, swelling guitar chords and other evolving effects — everything from reversed reverbs to a massed church choir singing a Gregorian chant in Notre-Dame Cathedral. Features: - Use up to 64 taps to create simple repeats or morph delays into choruses and reverbs. - Speed up or slow down the rhythmic spacing between taps using the Spread knob. - Use the onboard LFOs and envelopes to chop the sound source into stuttered rhythms. - Use the innovative "Slurm" control to smear taps together or modulate them to create truly unique reverbs. - Control the stereo image of taps to alternate between hard-panned and mono. - Over 150 presets designed to inspire; including artist presets by Chris Carter, Colin Newman, Sasha and many more. - Innovative Ribbon and Hotswitch allow for changing any combination of parameters simultaneously. - Use Mix Lock to scroll through presets while keeping the wet-dry mix constant. - Available as an Audio Units AUv3 plug-in and Standalone App.
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.
- 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
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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
Verdict
The clearest difference is price: Hark at Free against UltraTap Delay's $14.99. Hark also leads on update cadence (every 4 days vs every 2 months) and rating (5.0 vs 4.8). UltraTap Delay's advantage is in-app purchases (none vs 1) and ratings volume (20 vs 1). On ads 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
Hark is free to download; UltraTap Delay costs $14.99 up front. Hark sells 1 one-off in-app purchase. UltraTap Delay asks for nothing beyond the download.
Hark holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: UltraTap Delay has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of UltraTap Delay's written reviews are positive against 100% of Hark's.
UltraTap Delay ships an update every 2 months, Hark every 4 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | UltraTap Delay | Hark |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 4.8 (20 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 87.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 20 — better | 1 |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Eventide | Ilia Usatov |
Customer experience
UltraTap Delay
Hark
In-app purchases
UltraTap Delay
No in-app purchases
Hark
- Hark Pro$19.99









