Midi Echo AU vs King Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Midi Echo AU
This app creates repeating MIDI note effects, similar to audio echoes but for digital music signals. It allows for independent control of note-on and note-off messages, offering extensive customization for musical expression.
- Selectable echo types (fixed, ping pong, taper)
- Adjustable number of echoes (0-20)
- MIDI velocity reduction for quieter echoes
- Define pitch interval for successive echoes
- Tempo sync or mSec delay time
- Set MIDI channel for echoes
- Disable individual echoes
- MIDI thru control
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AUv3 Midi Fx - Midi Echo online manual here: http:/amssoftware.org/manual/MidiEchoManual.pdf Note : AUv3 midi apps need a compatible host (AUM,Audiobus 3, Cubasis, BM3 etc). So what is a midi echo? It is similar to the audio echo effect where copies of the original audio are repeated at regular time intervals but with some form of change (e.g. quieter). But unlike audio, midi is digital in nature (low resolution 8 bit mostly) and focused around the midi note on & off message used to control synths etc. This app acts on midi note-on independently from the note-off but when the note – off appears it echoes the release of the note-on in the same way the note-on was echoed (pitch interval etc) even if the UI controls have changed. UI Controls exist to allow you to: * Select the type of echo (fixed, ping pong, taper) * Vary the number of echoes (from 0 to 20) * Make echoes quieter by reducing the midi velocity * Define the pitch interval (semitone) of all successive echoes * Select the delay time between echoes either tempo sync or in mSec * Define the delay type (fixed, tempo, random 50, random 20) * Set the midi channel of echoes (1-16) so that other synths can select the echo only * Disable individual echoes - to allow you to play chords with a small or 0 delay * Set Midi thru to keep/remove the original note messages * Panic button to quickly turn off all notes * Setup control automation as all controls are AU Parameters
King Key
This app provides high-quality one-shot keyboard samples, including vintage typewriters and modern synthesizers. It offers 9 instruments and 11 presets, usable as a standalone instrument or an AUv3 plugin within music production hosts.
- High-quality one-shot keyboard samples
- Vintage typewriter and MIDI keyboard sounds
- 9 instruments and 11 presets
- AUv3 plugin compatibility
- Standalone instrument mode
- Proprietary high-detailed sampling techniques
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In grand celebration of International Joke Day 2024, we at Caelum used our incredibly intelligent minds to bring you our first sampler; King Key. Gone are the days when you were left begging for high quality one-shot keyboard samples, now you can get King Key. Anywhere in the world you can now play the sounds of a keyboard, on your keyboard. We also blessed you with the sounds of a MIDI keyboard, a typewriter and 4 produced kits as our generosity knows no limits. Click, Clack, Svvvvt, B-ding, cha-cuh, fshhhh. With 9 instruments and 11 presets at your finger tips you can finally be the person your parents wanted you to be, a King Key one. Using proprietary high-detailed sampling techniques, which are sadly too complex for you to understand without demonstrative play-dough, we have captured the essence and spirit of a vintage Imperial typewriter, a Modal Cobalt8X and a Generic USB keyboard. We then took these beautiful, inspirational samples and produced them into some juicy, expressive kits for your pleasure. King Key is designed as an AUv3 plugin, meaning it works within iOS and iPadOS hosts such as Logic Pro, GarageBand, Cubasis 3, AUM and Beatmaker 3. King Key also works as a standalone instrument.
Screenshots
Verdict
The clearest difference is review sentiment: King Key at 100% against Midi Echo AU's 50%. King Key also leads on rating (4.9 vs 3.5). On price, ratings volume, 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
Midi Echo AU costs $1.99 and King Key $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
King Key holds the better App Store score, 4.9 against 3.5. Both are backed by a comparable volume of ratings — 8 and 15 respectively. Written reviews point the same way: 50% of Midi Echo AU's written reviews are positive against 100% of King Key's.
| Parameter | Midi Echo AU | King Key |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 3.5 (8 ratings) | 4.9 (15 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 | 15 — better |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 13 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | anthony saunders | Caelum Audio Ltd |
Customer experience
Midi Echo AU
King Key
In-app purchases
Midi Echo AU
No in-app purchases
King Key
No in-app purchases
Questions
Is Midi Echo AU free?
Is King Key free?
Which has better reviews, Midi Echo AU or King Key?
Do Midi Echo AU or King Key have ads?
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