Comparison

SJ vs Disco Sampler+

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

Head to head
About

SJ

Features
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SJ-SQUARE is a Super Jupiter–inspired analog polyphonic synthesizer for iPhone. A warm brown chassis and amber glow meet a hands-on module layout: oscillators, filter, envelopes, LFO, and effects — built for playing, not menus. FEATURES • Multi-oscillator panel with wave, octave, and level controls • Filter with resonance, envelope intensity, and key tracking • Filter envelope & amp controls for expressive shaping • LFO, OSC 2 detune / live layer, chorus, delay, and reverb • Unison (1–4 voices), tempo / tap, and scale snap • Full on-screen keyboard with octave shift & range minimap • MIDI input support for external controllers • Built-in presets ready to play • Landscape-optimized performance UI Craft rich pads, biting leads, and stacked unison tones. Tweak cutoff and envelopes in real time, then perform with the keyboard or your MIDI gear. From the maker of KG-SQUARE, JP-SQUARE, and DX-SQUARE — hardware-inspired synth apps for musicians who love hands-on sound design.

About

Disco Sampler+

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Disco Sampler+は、36種類のサウンドを自由に鳴らして楽しめる、シンプルで直感的なサンプラーアプリです。 4つのバンク(A/B/C/D)に各9種類、合計36種類のサウンドを収録。パッドをタップするだけで、効果音やボイス、スクラッチなどを瞬時に再生できます。 センターディスプレイはキャラクター表示と波形表示を切り替えることができ、波形表示ではサンプルの再生位置をリアルタイムに確認できます。さらにピッチベンドコントロールを使えば、レコードの回転速度を変えるようにサウンドのピッチと再生速度をリアルタイムにコントロールできます。 各パッドは音量を0〜200%まで個別に設定でき、HapticsのON/OFFにも対応。パッドの点灯時間やサンプル名表示なども好みに合わせてカスタマイズできます。 音楽を再生しながらDisco Sampler+のサウンドを重ねて鳴らすことも可能。DJプレイや音楽鑑賞、パフォーマンスなど、さまざまな場面で手軽にサンプラーを楽しめます。 【主な機能】 ・4バンク × 9パッド、合計36種類のサウンド ・キャラクター/波形表示の切り替え ・リアルタイムの再生位置表示 ・±12半音のピッチベンド ・パッドごとの音量調整(0〜200%) ・パッドごとのHaptics設定 ・サンプル名表示 ・パッド点灯時間の設定 ・音楽再生中のミックス再生に対応

Screenshots

SJ1 screens
Disco Sampler+4 screens

Verdict

The call

The clearest difference is price: Disco Sampler+ at Free against SJ's $0.49. Disco Sampler+ also leads on update cadence (every 2 days vs fortnightly). On ads, in-app purchases, device support and iOS requirement 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

Disco Sampler+ is free to download; SJ costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SJ ships an update fortnightly, Disco Sampler+ every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
SJ versus Disco Sampler+: the parameters behind the verdict, then further details
ParameterSJDisco Sampler+
Price$0.49Free — better
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS26.5 — better27.0
Further details — not scored
Size30 MB6 MB
Age rating4+4+
DeveloperKouki YoshimotoShinichiro Noguchi

In-app purchases

None

SJ

No in-app purchases

None

Disco Sampler+

No in-app purchases

Questions

Is SJ free?
SJ costs $0.49, with no in-app purchases.
Is Disco Sampler+ free?
Disco Sampler+ is free to download, with no in-app purchases.
Do SJ or Disco Sampler+ have ads?
Neither SJ nor Disco Sampler+ shows ads.
Which is updated more often, SJ or Disco Sampler+?
SJ ships an update fortnightly, and Disco Sampler+ every 2 days. Most recently, SJ was updated on November 5, 2026 and Disco Sampler+ on October 31, 2026.

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