---
title: "SK-51 - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "SK-51 is an all-in-one keyboard inspired by the Casio SK-1 (and his brother the SK-5), a 8-bit lo-fi keyboard from the 80’s, with sampling features and onboard drum machine. Called the poor man's samp"
---

# SK-51 — United States

![SK-51 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/4f/b2/9f/4fb29f84-9a0c-ecd2-c48d-f2ec4f8d752b/AppIcon-0-0-1x_U007epad-0-11-0-85-220.png/434x0w.png)

**Developer:** [Fingerlab SARL](https://apptail.io/developer/fingerlab-sarl-gAk)
**Category:** Music
**Rating:** 4.1/5 (97 ratings)
**Price:** Free
**Bundle ID:** net.fingerlab.sk51
**Store:** Apple App Store
**Country:** United States
**Version:** 4.2.4 (released 2026-09-29)
**Original Release:** 2019-03-09
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1388248180)
**AppTail Page:** [https://apptail.io/app/sk-51-xDZf/united-states](https://apptail.io/app/sk-51-xDZf/united-states)

## SK-51 Description
SK-51 is an all-in-one keyboard inspired by the Casio SK-1 (and his brother the SK-5), a 8-bit lo-fi keyboard from the 80’s, with sampling features and onboard drum machine.
Called the poor man's sampler at the time, this keyboard was a real instrument and has been used by many major artists such as Fatboy Slim, Portishead, Autechre and Nine Inch Nails. 

As some of us at Fingerlab compose their first songs with it when they were kids in the eighties, we wanted to bring back to you this particular feeling from the past, so we created the SK-51.

We recorded all the instruments and drums notes, one by one with a professional audio quality (16bit/44KHz), we recreated the sampling features, and we transcribed all the demo drums patterns. 
We also added the sounds from the Casio VL-Tone, a keyboard older than the SK-1 but nevertheless famous.

With its nice and true to life interface, many instruments (Trumpet, Flute, Piano, Vibraphone, …), 4 sampling slot and many drums patterns and sounds, the SK-51 is versatile and fun music tools.
Record your voice, start the drum box, play a chord and you got it!

Free version features:
- 3 instruments (Flute I, Piano I, Trumpet)
- 14 drums kit
- 4 sampling slot
- 6 drums pads
- Drums pitch-bend ribbon
- 3 demo drums patterns
- Full Mixer
- Audio Unit with all parameters exposed
- Full Midi support
- Midi mappings
- AudioBus & Inter-App Audio support
- Ableton Link support

IAP Full version features:
- 19 instruments (including Brass Ensemble, Vibraphone, Chorus and many more…)
- 14 drums kit
- 21 demo drums patterns
- 5 FX: TubeAmp, Phaser, Delay, Reverb & Compressor
- Live Recording

We hope you’ll enjoy it!

Stay tuned!
Fingerlab Team

## SK-51 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple125/v4/ee/7d/52/ee7d52f4-4edb-886e-85ad-666c54906eca/pr_source.png/2688x1242.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/31/04/ed/3104ed67-e29c-fe68-c5b2-875e54d224dc/43504178-0060-46b0-94e8-53427c460afd_sc_iphoneX_1.png/2688x1242.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/0a/e7/c3/0ae7c3df-c3d9-36ae-cdce-a67cd0ed528d/82c95467-fd0b-4221-b694-3766e418945d_sc_iphoneX_2.png/2688x1242.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/45/88/74/4588743d-0106-e77c-b84c-32e982caadb7/f6b88f95-f4d4-4ec8-886a-f64bf4dd0e4f_sc_iphoneX_3.png/2688x1242.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/e5/2a/54/e52a541d-2ac6-ba01-a604-4a28f0c79046/f25c4479-e2a9-4313-92ec-00ac35b43d84_sc_iphoneX_4.png/2688x1242.png)

## SK-51 Rating Breakdown in United States
- 5 stars: 61 (63%)
- 4 stars: 15 (15%)
- 3 stars: 5 (5%)
- 2 stars: 3 (3%)
- 1 stars: 13 (13%)

## SK-51 Reviews in United States

### ****- "Great app! One request.."
Really wonderful and powerful app. One request: can you please make this Bluetooth compatible? It would be so rad to use my stereo speakers as a playback option. This would open up a wide array of possibilities. It works with earbuds but not Bluetooth speakers for some reason. Other than that, I love it!
-- Manbrando, 2026-01-09

### ****- "Pretty useful"
As a GarageBand user, I like to use some synth apps for more synths. Just plugins and Audio Unit Extensions in general. I get everything free I can and I’ve found some hidden gems. The only way I found this was because I looked at Fingerlab. I use Mynth and Flynth a lot, and they’re nice. I like the Random button on Mynth. But I wanna talk about the SK-51, after all, I’m reviewing it. I only got it a day ago, but I’m already enjoying the experience. However, the only thing I don’t like about the Fingerlab apps is the paywalls. That’s the only thing keeping the SK-51 from being 5 stats. It’s also nice for GarageBand. In my opinion, it’s better and easier to use than the Sampler. They both have things exclusive to them, but I still stand by what I said.

With that being said, SK-51 is a 4-star app. I would recommend.
-- Poofmom, 2025-02-02

### ***** "write a rap"
that’s when my whole life had changed
-- IHATEMYSTUPIDLIFEPLEASEKILLME, 2024-11-27

### ****- "Close to the original"
This is a lot of fun but after I upgraded to the full version things because a lot less stable. Hopefully an update will fix things
-- revmutt, 2024-09-14

### ****- "Midi for desktop stopped working [Intel/Ventura 13.4]"
Flynth & Mynth work fine. It's pretty straight forward to connect, idk what the problem could be though. Other than that, from what I remember, this app was a lot of fun for the price. All fingerlab stuff is great price, and really quick to pick up and just get some inspiration. 

UI is classic and simple, also resizable. There's not too many bells or whistles, but tbh...just messin around it's not necessary. Hope there's an update soon.
-- .volcano, 2023-05-29

### **--- "Bad demo"
I would’ve bought this app if it at least let me try the voice sampler to some limited extent first
-- kygouglublublubluvluub, 2023-05-23

### ***** "yes"
i had the SK1 for nearly 40 years (literally just donated it yesterday because some of the  black keys broke off and were missing) and i still have an SK5 that i picked up about a decade ago. this app does what they do and a lot more. it’s excellent. 

my only requests would be for a tap tempo and an ability to set the FX separately for the drums and keyboard.
-- SuperDuper01, 2022-12-22

### **--- "Needs Rhythm Fill-In!"
The Casio SK-1 I had as a child had a button for rhythm fill-ins. Add this, and decrease the empty space in front of the sound when sampling, and this would be a 4 or 5 star app!
-- Ziggymay, 2022-08-28

### ***** "Amazing app."
I very seldom write reviews on here but I just really love this app. Sounds just like the old Casio samplers. The effects are great, too. It has some occasional glitches but it’s worth it.
-- hotstrange, 2021-11-29

### *---- "Waste of money"
It will record input but no output. That’s the whole reason I paid for it.
-- Jhughes/8904, 2021-09-11

[View all SK-51 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## SK-51 In-App Purchases
| Item | Price |
|------|-------|
| Full Version | $7.99 |



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## SK-51 Available In
- [United States](https://apptail.io/app/sk-51-xDZf/united-states)
- [Germany](https://apptail.io/app/sk-51-xDZf/germany)
- [United Kingdom](https://apptail.io/app/sk-51-xDZf/united-kingdom)
- [Japan](https://apptail.io/app/sk-51-xDZf/japan)
- [France](https://apptail.io/app/sk-51-xDZf/france)
- [China](https://apptail.io/app/sk-51-xDZf/china)
- [Canada](https://apptail.io/app/sk-51-xDZf/canada)
- [Sweden](https://apptail.io/app/sk-51-xDZf/sweden)
- [Netherlands](https://apptail.io/app/sk-51-xDZf/netherlands)
- [Russia](https://apptail.io/app/sk-51-xDZf/russia)
- [Colombia](https://apptail.io/app/sk-51-xDZf/colombia)
- [Italy](https://apptail.io/app/sk-51-xDZf/italy)
- [Thailand](https://apptail.io/app/sk-51-xDZf/thailand)
- [Australia](https://apptail.io/app/sk-51-xDZf/australia)
- [Philippines](https://apptail.io/app/sk-51-xDZf/philippines)
- [Argentina](https://apptail.io/app/sk-51-xDZf/argentina)
- [Czechia](https://apptail.io/app/sk-51-xDZf/czechia)
- [Vietnam](https://apptail.io/app/sk-51-xDZf/vietnam)
- [Poland](https://apptail.io/app/sk-51-xDZf/poland)
- [Brazil](https://apptail.io/app/sk-51-xDZf/brazil)
- [Switzerland](https://apptail.io/app/sk-51-xDZf/switzerland)
- [Denmark](https://apptail.io/app/sk-51-xDZf/denmark)
- [Spain](https://apptail.io/app/sk-51-xDZf/spain)
- [Greece](https://apptail.io/app/sk-51-xDZf/greece)
- [Hong Kong SAR China](https://apptail.io/app/sk-51-xDZf/hong-kong)
- [Indonesia](https://apptail.io/app/sk-51-xDZf/indonesia)
- [India](https://apptail.io/app/sk-51-xDZf/india)
- [South Korea](https://apptail.io/app/sk-51-xDZf/south-korea)
- [Sri Lanka](https://apptail.io/app/sk-51-xDZf/sri-lanka)
- [Malaysia](https://apptail.io/app/sk-51-xDZf/malaysia)
- [Norway](https://apptail.io/app/sk-51-xDZf/norway)
- [United Arab Emirates](https://apptail.io/app/sk-51-xDZf/united-arab-emirates)
- [Romania](https://apptail.io/app/sk-51-xDZf/romania)
- [Saudi Arabia](https://apptail.io/app/sk-51-xDZf/saudi-arabia)
- [Singapore](https://apptail.io/app/sk-51-xDZf/singapore)
- [Türkiye](https://apptail.io/app/sk-51-xDZf/turkey)
- [Israel](https://apptail.io/app/sk-51-xDZf/israel)
- [Austria](https://apptail.io/app/sk-51-xDZf/austria)
- [Cyprus](https://apptail.io/app/sk-51-xDZf/cyprus)
- [Chile](https://apptail.io/app/sk-51-xDZf/chile)
- [Tunisia](https://apptail.io/app/sk-51-xDZf/tunisia)
- [Kuwait](https://apptail.io/app/sk-51-xDZf/kuwait)
- [Kazakhstan](https://apptail.io/app/sk-51-xDZf/kazakhstan)
- [Lebanon](https://apptail.io/app/sk-51-xDZf/lebanon)
- [South Africa](https://apptail.io/app/sk-51-xDZf/south-africa)
- [Madagascar](https://apptail.io/app/sk-51-xDZf/madagascar)
- [Macao SAR China](https://apptail.io/app/sk-51-xDZf/macau)
- [Mexico](https://apptail.io/app/sk-51-xDZf/mexico)
- [Taiwan](https://apptail.io/app/sk-51-xDZf/taiwan)
- [Nigeria](https://apptail.io/app/sk-51-xDZf/nigeria)
- [Brunei](https://apptail.io/app/sk-51-xDZf/brunei)
- [Ukraine](https://apptail.io/app/sk-51-xDZf/ukraine)
- [New Zealand](https://apptail.io/app/sk-51-xDZf/new-zealand)
- [Oman](https://apptail.io/app/sk-51-xDZf/oman)
- [Peru](https://apptail.io/app/sk-51-xDZf/peru)
- [Bahrain](https://apptail.io/app/sk-51-xDZf/bahrain)
- [Pakistan](https://apptail.io/app/sk-51-xDZf/pakistan)
- [Uganda](https://apptail.io/app/sk-51-xDZf/uganda)
- [Portugal](https://apptail.io/app/sk-51-xDZf/portugal)
- [Angola](https://apptail.io/app/sk-51-xDZf/angola)
- [Belgium](https://apptail.io/app/sk-51-xDZf/belgium)
- [Uzbekistan](https://apptail.io/app/sk-51-xDZf/uzbekistan)
- [Ecuador](https://apptail.io/app/sk-51-xDZf/ecuador)
- [Egypt](https://apptail.io/app/sk-51-xDZf/egypt)
- [Azerbaijan](https://apptail.io/app/sk-51-xDZf/azerbaijan)
- [Finland](https://apptail.io/app/sk-51-xDZf/finland)
- [Algeria](https://apptail.io/app/sk-51-xDZf/algeria)
- [Dominican Republic](https://apptail.io/app/sk-51-xDZf/dominican-republic)
- [Grenada](https://apptail.io/app/sk-51-xDZf/grenada)
- [Armenia](https://apptail.io/app/sk-51-xDZf/armenia)
- [Slovenia](https://apptail.io/app/sk-51-xDZf/slovenia)
- [Honduras](https://apptail.io/app/sk-51-xDZf/honduras)
- [Croatia](https://apptail.io/app/sk-51-xDZf/croatia)
- [Hungary](https://apptail.io/app/sk-51-xDZf/hungary)
- [Slovakia](https://apptail.io/app/sk-51-xDZf/slovakia)
- [Ireland](https://apptail.io/app/sk-51-xDZf/ireland)

---

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