Comparison

Sopranotron 2 vs King Key

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

Head to head
About

Sopranotron 2

This app provides high-quality virtual soprano voice and violin samples for music production. It features a new virtual tape replay engine with clean, vibrant sounds, perfect for adding vocal and string textures to any mix.

Highlights
  • Virtual tape replay engine
  • Soprano vocal samples
  • Violin samples
  • Multiple sample sets and mixes
  • High-quality audio
  • Clean, vibrant sounds
Read full description

Why a standalone app featuring just Soprano voices and violins? The most popular categories of mellotron voices are strings and choirs. So with that in mind we have turned our brand-new Mellotronics virtual tape replay engine into an instrument of pure voice plus pure violin. Caitlin Downie’s gorgeous soprano vocal samples, 11 individual sample sets and 4 mixes, are bundled with our popular "Clare Lindley Violin Collection" of 7 individual articulations and 3 mixes. 25 gorgeous samples to add quality and class to any mix. And the quality really is glorious - it’s like somebody took all your favourite mellotron voices and waved a magic wand to eliminate the tape hiss. Not as instantly 'vintage' and nostalgic as our Streetlytron family, these samples are nonetheless very special, and give musicians and producers an extra, vibrant palette of vocal and chamber string colours to deploy. These sounds are equally capable of standing proud and upfront in a mix, or sitting back to form a haunting, romantic string or vocal bed. Orirginally recorded and engineered by Glenn Tommey in Bath in 2013, these samples have been cleaned up and reworked for this new incarnation, and these are the highest quality versions of these libraries ever released.

About

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.

Highlights
  • 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
Read full description

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

Sopranotron 22 screens
King Key2 screens

Verdict

The call

The clearest difference is price: Sopranotron 2 at Free against King Key's $1.99. Sopranotron 2 also leads on iOS requirement (9.3 vs 12.0). King Key's advantage is rating (4.9 vs 4.3). On review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Sopranotron 2 is free to download; King Key costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

King Key holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 7 and 15 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Scorecard4 real differences · 6 level
Sopranotron 2 versus King Key: the parameters behind the verdict, then further details
ParameterSopranotron 2King Key
PriceFree — better$1.99
Rating4.3 (7 ratings)4.9 (15 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings715 — better
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better12.0
Further details — not scored
Size115 MB12 MB
Age rating4+4+
DeveloperPhil AtkinCaelum Audio Ltd

Customer experience

Sopranotron 2

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

King Key

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sopranotron 2

No in-app purchases

None

King Key

No in-app purchases

Questions

Is Sopranotron 2 free?
Sopranotron 2 is free to download, with no in-app purchases.
Is King Key free?
King Key costs $1.99, with no in-app purchases.
Which has better reviews, Sopranotron 2 or King Key?
King Key is rated higher. Sopranotron 2 averages 4.3 out of 5 from 7 ratings, while King Key averages 4.9 from 15 ratings.
Do Sopranotron 2 or King Key have ads?
Neither Sopranotron 2 nor King Key shows ads.

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