SK-51 - Lofi Keyboard Sampler

Name: SK-51 - Lofi Keyboard Sampler
Rating: 4.1 (101 reviews)
Author: Fingerlab

By: Fingerlab

AUv3, Drums, MIDI & Toy Piano

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Features & Capabilities

SK-51 is an all-in-one keyboard inspired by the Casio SK-1 (and its SK-5 sibling), reviving the 80s lo-fi sampler vibe. It recreates sampling features with a true instrument library (Trumpet, Flute, Piano, Vibraphone, and more), four sampling slots, and a host of drum patterns, plus Casio VL-Tone-inspired tones for authentic retro flavor.

The free version includes 3 instruments, 14 drum kits, 4 sampling slots, 6 drum pads, a drum pitch-bend ribbon, a full mixer, MIDI, Audio Unit exposure, AudioBus & Inter-App Audio support, and Ableton Link. The full version (in-app purchase) unlocks 19 instruments, 14 drum kits, 21 demo patterns, 5 effects (TubeAmp, Phaser, Delay, Reverb, Compressor), and live recording.

User Growth & Download Statistics

App Music & Audio

By:

Fingerlab

Rating:

4.10

(101)

Version:

4.2.3 Last updated: 2026-06-05

Version code:

886429627

Creation date:

2019-03-09

Compatible devices:

Size:

285.69MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-01

Compare stats and ranking:

Ranking

# 157,137 ▲ 334

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Fingerlab

Apple Apps Store

https://apps.apple.com/us/app/sk-51-lofi-keyboard-sampler/id1388248180

Website:

https://www.fingerlab.net/sk-51

User Reviews

Overall, SK-51 is praised for its nostalgic Casio vibe, intuitive UI, and solid recording features, plus reasonable pricing and GarageBand usefulness. The main drawbacks are paywalls gating core features, stability issues and crashes during sampling, and unreliable output playback. When fully unlocked, many reviewers feel it’s worth the price, but frustration remains from not being able to test sampling before buying and from bug-related interruptions.

Pros

Nostalgic Casio SK-1 vibe with authentic retro sounds.
Easy-to-use, classic and friendly UI (resizable).
Strong recording/sampling capabilities that are a highlight.
Affordable price and good value when fully upgraded.
Good GarageBand compatibility and usefulness for GarageBand users.

Cons

Free version is largely useless due to paywalls; core features require purchase.
Crashes and instability around sampling/recording, especially after upgrades.
Output playback issues; sometimes samples don’t audible or playback is unreliable.

Recent reviews

It is so good it is just like gene’s keyboard from bob’s burgers

by dh*****, 2026-06-09

Dude, everything here is. Great! I love the old analog sounds, too bad most of it his behind a paywall.

by J0*****, 2026-02-18

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!