isfizz vs AmenBreakChopper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
isfizz
This app plays SFZ files, an open format for sampled sound instruments. It supports various audio file formats, MIDI, and Scala tuning files. It also functions as an Audio Unit Extension (AUv3) for use with other music apps.
- SFZ file playback
- Audio Unit Extension (AUv3) support
- Edit SFZ strings
- Load SFZ files in place
- Scala tuning file support
- MIDI support
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isfizz is a SFZ file player. SFZ is an open text format for sampled sound instruments. This app can load SFZ and play the instrument. - Includes Audio Unit Extension (AUv3). - You can edit SFZ string. - The app loads SFZ files in place without copying the files. - Double tap to enter the value, triple tap to reset. - Supports Scala tuning files (.scl). - Supports MIDI. - Supports 16 out. use the "output=N" opcode in SFZ. Supported sample file format: - .wav (raw PCM) - .aiff - .mp3 - .flac - .ogg (vorbis) - .wv (wavpack) This app is an iPhone/iPad port of sfizz-ui project. The app is made from some sfizz-ui codes and images. About half of the income from this app will be donated to SFZ Tools team. This app and the description contain machine translated text.
AmenBreakChopper
This music app synchronizes input audio with BPM-synced delay for beat chopping. It allows for 16-beat beat chopping quantized to eighth notes and supports external MIDI controllers for adjustments.
- BPM-synced delay
- Beat chopping
- 16-beat quantization
- Eighth note quantization
- External MIDI controller support
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AmenBreakChopperは、入力された音声をBPMに同期したディレイで再生するビートチョッパー・エフェクトです。 BPM同期を取り、8分音符でクオンタイズされた状態で16拍分の長さでのビートチョップを行えます。 外部MIDIコントローラでビートチョップや位置の修正を行うことができます。
Screenshots
Verdict
The clearest difference is review sentiment: isfizz at 100% against AmenBreakChopper's 67%. isfizz also leads on rating (4.7 vs 4.5) and update cadence (fortnightly vs every 5 weeks). AmenBreakChopper's advantage is price ($0.99 vs $2.99) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases, monetization model and device support 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
isfizz costs $2.99 and AmenBreakChopper $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
isfizz holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: isfizz has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of isfizz's written reviews are positive against 67% of AmenBreakChopper's.
isfizz ships an update fortnightly, AmenBreakChopper every 5 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | isfizz | AmenBreakChopper |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 4.7 (14 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 14 — better | 2 |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryouta Kira | Keisuke Kagoshima |
Customer experience
isfizz
AmenBreakChopper
In-app purchases
isfizz
No in-app purchases
AmenBreakChopper
No in-app purchases
