Recorder Duet vs isfizz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Recorder Duet
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This App contain " Philis schoon Herderinne" " Engels Liedt" "More palatino" "Amarilli mia bella" " Prins Robbert Masco" by Van Eyck "La Girandola" " Il Lamento" "Go ye my canzonets" "Sweet Nymph Come to thy Love"r by Thomas Morley "Fantasia" by Christopher Gibbons "Sonata op.1-1 Am" by J.B. Loeillet "Sonata No.6"by G.Sammartini. Since it is independent of each part, by playing the other part, you can practice together. This app, do not go out together for a marker to play. This app will be replaced by the score in accordance with the progress of the song. It is A = 440Hz (modern pitch)and A= 415(baroque pitch).It is to be able to play at a speed of 6 stages. In the environment where Air Print can be used, all the score can be printed.
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.
Screenshots
Verdict
The clearest difference is update cadence: isfizz at every 3 weeks against Recorder Duet's every 20 months. Recorder Duet's advantage is price ($0.99 vs $2.99). 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
Recorder Duet costs $0.99 and isfizz $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Recorder Duet ships an update every 20 months, isfizz every 3 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Recorder Duet | isfizz |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | — | 4.7 (14 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Every 20 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 94 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | masafumi sasaki | Ryouta Kira |
In-app purchases
Recorder Duet
No in-app purchases
isfizz
No in-app purchases
