isfizz

🇺🇸 United States
Ryouta Kira  | 
40
ASO score
Text
31/100
Reviews
50/100
Graphic
60/100
Other
0/100
rating
App Rating
4.6
rating
Votes
27
rating
App Age
1 year 11m
rating
Last Update
Oct 22, 2025

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4.58
4.59
-0.2%
Number of Ratings (Voted)
27
579.2K
-100%
App Age
1y 11m
8y 2m
-76%
In-app Purchases Price
$0
$45
Update Frequency
48d
30d
+59%
Title Length
6
25
-76%
Subtitle Length
24
27
-11%
Description Length
772
2 745
-72%
Number of Screenshots
1365
1293
+6 %
Size
6MB
215MB
-97 %

Category Ranking in United States

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Top Dec 02, 2025 Dec 09, 2025
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Top Dec 02, 2025 Dec 09, 2025
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Top Dec 02, 2025 Dec 09, 2025
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Ranking Keywords in United States

Keywords App Rank
Illustration
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Text ASO

Title (
Characters: 6 of 30
)
isfizz
Subtitle (
Characters: 24 of 30
)
SFZ player / AUv3 plugin
Description (
Characters: 772 of 4000
)
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.}
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Visual ASO

Screenshots

Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4.6
27 voters

Some Latest Reviews

Savio Dieb
07 Nov, 2025
4
Mesmo após a recente atualização. continua sem funcionar no Logic e agora Auria pro, que com a anterior estava funcionando. Somente funciona no cubase!
Ilkostl
24 Jan, 2025
5
Thank you so, so much for this app! For those who haven't tried it, SFZ is the best and easiest format to create your own highly customizable sample-based instruments. I have created quite a few multi-layer instruments with a great success, sounding indistinguishable from the originals. For me the problem has always been finding reliable and versatile player iOS app. This one is perfect and very stable on iPadOS 18. I highly recommend it. Great job, dear friend!
Pianosnake
04 Jan, 2025
5
If I'm not mistaken this is the only option for playing SFZ files on iOS, and it does a great job at it. Everything I've tried in Sforzando works here like amplitude and locc/hicc opcodes. Only change I'd suggest is to combine the first and 3rd screens so that all CC controls are on the first page. I often have to switch the SFZ file i''m using and it would be less clicking around if all the CC dials were on the home page. Good job!
Gr.@dje (🈲).
30 Oct, 2024
5
Truly amazing..... small in size, big in sound, fast and dedicated support; in short: "a must have" ! Gr.@dje (🈲).
EdZiPad
16 Jun, 2024
5
An excellent SFZ file player. The interface is simple but elegant and powerful, and it’s easy to load a custom background image by editing the SFZ file, which is also easy within the app. Support for external storage is a nice feature and I’ve loaded up SFZ’s up to 2 GB with no problems. Works well as an AUv3 in AUM and other hosts. Also supports key switches and custom tuning files. Really nice.

Other

Additional Information
Rating:
4.59
Voted: 27
App Store Link:
Website: -
Email: -
Privacy Policy:
Categories: Music
Size: 5MB
App Age: 1 year 11 months
Release Date: Dec 30, 2023
Last Update: Oct 22, 2025
Version: 1.3.18
Version history
1.3.18
Oct 22, 2025
I've adjusted the appearance when text size is changed in iPhone/iPad settings. Other fixes.
1.3.17
Oct 29, 2024
Fixed an issue that prevented "Prevent Sleep" from working.
Version history