Bitbop vs Opaline FM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bitbop
Create music with a pocket instrument where every pad is in key. Explore over 1,000 songs across various genres, customize sounds with five unique synthesizer worlds, and visualize your music with full-screen graphics. Share your creations as video, audio, or links.
- Pocket instrument with in-key pads
- 1,000+ song templates across genres
- Five distinct synthesizer sound worlds
- Full-screen music visualizations
- Export audio, MIDI, and video
- Real-time collaborative jamming
- Offline functionality
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Bitbop is a pocket instrument for making music. Every pad is in key, so you can't play a wrong note, and a full band plays along: lead, bass, bells and drums. START FROM 1,000+ SONGS Techno, house, trance, drum and bass, synthwave, lo-fi, hip-hop, disco, afrobeat, latin, raga, classical, folk and Bitbop originals. Load one, change anything, make it yours. Or tap Surprise me and start from a new idea. FIVE SOUND WORLDS Each one is its own synthesizer: - Bitbop: the signature chiptune sound, a PWM lead and a chip supersaw - Techno: a resonant lead, a clean sub and a driven kit - Retro: a pulse melody, square chimes and a smooth triangle bass - Classical: bowed strings and a plucked harp in a concert hall - Dancehall: a syncopated sub, a skank chop and a steppers riddim SOUND YOU CAN SEE 100 full-screen visuals that follow every note you hear. SHARE WHAT YOU MAKE - Export a video for stories and feeds, with the visuals you see - Export WAV audio or MIDI for any music app - Share a song as a link or QR code - Go Live: friends watch your jam in real time from a link, no app needed PLAY YOUR WAY - Tempo from 65 to 250 BPM, a vibe filter and a feel control for swing - Loops from 8 steps up to 10 bars, with a fader for lead, bass, bells and drums - Undo, erase, copy and paste, and lock a control between songs NO ADS. NO ACCOUNTS. Bitbop works offline and your songs stay on your device. Only anonymous usage counts are sent, and you can turn them off in Settings.
Opaline FM
Create and perform music with a virtual keyboard and advanced sound editing tools. Explore various playing modes, connect external MIDI devices, and manage your sound library. Offers deep control over FM synthesis parameters.
- Virtual keyboard for immediate performance
- Detailed sound editing (algorithm, operators, envelopes, LFO, effects)
- Poly/Mono and Full/Fingered portamento
- Single, Dual, and Split playing modes
- External MIDI keyboard support
- 32-voice SysEx bank management
- Built-in reverb, delay, chorus, and tone effects
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【演奏と音色編集】 iPhone単体で起動し、画面鍵盤からすぐに演奏できます。Play画面では音色選択、ピッチベンド、モジュレーション、ポルタメントなどを操作できます。 Edit画面では、アルゴリズム、各オペレーターのRatio、Detune、Level、エンベロープ、キーボードレベルスケーリング、LFO、エフェクトなどを細かく編集できます。 POLY／MONO、FULL／FINGEREDポルタメントに対応。SINGLEに加え、2つの音色を重ねるDUAL、鍵盤を分割するSPLIT演奏も利用できます。 【外部MIDI対応】 外部MIDIキーボードを接続して演奏できます。Note On／Off、ピッチベンド、モジュレーションホイール、サステインペダル、ポルタメント制御、All Sound Off、All Notes Offに対応しています。 【音色ライブラリ】 32音色SysExバンクの読み込みと保存に対応。音色とエフェクト設定を含むライブラリを管理でき、作成した音色をバンクごとに整理できます。 【主な機能】 ・4オペレーターFM音源 ・8種類のFMアルゴリズム ・オペレーター4のフィードバック ・ピッチエンベロープ、振幅エンベロープ、LFO ・Ratio、Detune、Level設定 ・キーボードレベルスケーリング ・ベロシティ、振幅モジュレーション ・リバーブ、ディレイ、コーラス、Tone ・POLY／MONO演奏 ・FULL／FINGEREDポルタメント ・ピッチベンド範囲：0～12半音 ・SINGLE／DUAL／SPLIT演奏モード ・外部MIDI入力 ・32音色SysExバンク対応
Screenshots
Verdict
The clearest difference is rating: Bitbop at 5.0 against Opaline FM's 4.7. Opaline FM's advantage is ratings volume (3 vs 1) and iOS requirement (16.0 vs 18.0). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bitbop holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Bitbop ships an update weekly, Opaline FM every 6 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.
| Parameter | Bitbop | Opaline FM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.7 (3 ratings) |
| Number of ratings | 1 | 3 — better |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Franz Enzenhofer | Hideki Konishi |
In-app purchases
Bitbop
No in-app purchases
Opaline FM
No in-app purchases
