# NumericTadpole vs isfizz

The clearest difference is review sentiment: isfizz at 100% against NumericTadpole's 0%. isfizz also leads on update cadence (fortnightly vs every 2 months) and ratings volume (14 vs 1). NumericTadpole's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

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

NumericTadpole holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: isfizz has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of NumericTadpole's written reviews are positive against 100% of isfizz's, so the app with the better star average is not the one people write more warmly about.

NumericTadpole ships an update every 2 months, isfizz fortnightly. The most recent releases landed on August 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | NumericTadpole | isfizz |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/numerictadpole/id972559163/reviews)** | [4.7 (14 ratings)](https://appshunter.io/ios/app/isfizz/id6470708963/reviews) |
| Number of ratings | 1 | **14** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 4 MB | 6 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Motonari Hibi](https://appshunter.io/developer/386737172) | [Ryouta Kira](https://appshunter.io/developer/862984358) |

## What reviewers say

### NumericTadpole

[App page](https://appshunter.io/ios/app/numerictadpole/id972559163)

Create MIDI data for music production using a numeric interface. This app allows you to input note position, pitch, length, and velocity to generate musical sequences for other applications. It does not produce sound itself, requiring an external sound module.

**Highlights:** Numeric data input for notes, Adjustable note position, length, and velocity, MIDI data generation, Table and data views, Song and track management, 16 tracks available

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is NumericTadpole free?

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

### Is isfizz free?

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

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

NumericTadpole is rated higher. NumericTadpole averages 5.0 out of 5 from 1 ratings, while isfizz averages 4.7 from 14 ratings.

### Do NumericTadpole or isfizz have ads?

Neither NumericTadpole nor isfizz shows ads.

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

NumericTadpole ships an update every 2 months, and isfizz fortnightly. Most recently, NumericTadpole was updated on August 12, 2026 and isfizz on October 9, 2026.

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