# isfizz vs spaceVerb

The clearest difference is update cadence: isfizz at fortnightly against spaceVerb's every 8 months. isfizz also leads on price ($2.99 vs $4.99) and ratings volume (14 vs 4). spaceVerb's advantage is rating (5.0 vs 4.7) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

isfizz costs $2.99 and spaceVerb $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

spaceVerb holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 14 and 4 respectively.

isfizz ships an update fortnightly, spaceVerb every 8 months. The most recent releases landed on September 19, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | isfizz | spaceVerb |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | [4.7 (14 ratings)](https://appshunter.io/ios/app/isfizz/id6470708963/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/spaceverb/id6471394784/reviews)** |
| Number of ratings | **14** | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 8 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 74 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouta Kira](https://appshunter.io/developer/862984358) | [OSC Audio](https://appshunter.io/developer/1693533681) |

## What reviewers say

### isfizz

[App page](https://appshunter.io/ios/app/isfizz/id6470708963)

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.

**Highlights:** SFZ file playback, Audio Unit Extension (AUv3) support, Edit SFZ strings, Load SFZ files in place, Scala tuning file support, MIDI support

**Features:** Vision Pro support

**In-app purchases:** none


### spaceVerb

[App page](https://appshunter.io/ios/app/spaceverb/id6471394784)

This audio effect module offers a versatile stereo reverb with 14 distinct spaces, from conventional rooms and halls to unique environments like caves and mausoleums. It provides in-depth controls for shaping the reverb, including EQ and master settings, and supports cross-platform preset sharing. It functions as a standalone app or an AUv3 plugin for various host applications.

**Highlights:** 14 distinct reverb spaces, In-depth sound sculpting controls, 3-band EQ section, Preset manager with save/share, AUv3 plugin compatibility, Standalone app functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is isfizz free?

isfizz costs $2.99, with no in-app purchases.

### Is spaceVerb free?

spaceVerb costs $4.99, with no in-app purchases.

### Which has better reviews, isfizz or spaceVerb?

spaceVerb is rated higher. isfizz averages 4.7 out of 5 from 14 ratings, while spaceVerb averages 5.0 from 4 ratings.

### Do isfizz or spaceVerb have ads?

Neither isfizz nor spaceVerb shows ads.

### Which is updated more often, isfizz or spaceVerb?

isfizz ships an update fortnightly, and spaceVerb every 8 months. Most recently, isfizz was updated on September 19, 2026 and spaceVerb on September 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*