# Dial Upstrum vs VAPolyTZFM

The clearest difference is review sentiment: VAPolyTZFM at 50% against Dial Upstrum's 0%. VAPolyTZFM also leads on rating (5.0 vs 3.7) and iOS requirement (16.6 vs 18.0). Dial Upstrum's advantage is price ($3.99 vs $14.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Dial Upstrum costs $3.99 and VAPolyTZFM $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VAPolyTZFM holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 0% of Dial Upstrum's written reviews are positive against 50% of VAPolyTZFM's.

## The numbers

| Metric | Dial Upstrum | VAPolyTZFM |
| --- | --- | --- |
| Price | **$3.99** | $14.99 |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/dial-upstrum/id6746068214/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/vapolytzfm/id6747690642/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 9 months |
| Monetization | Paid | Paid |
| Size | 43 MB | 17 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Dave Sapien Ltd.](https://appshunter.io/developer/430607180) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### Dial Upstrum

[App page](https://appshunter.io/ios/app/dial-upstrum/id6746068214)

Transform classic modem sounds into a unique musical instrument. Explore phase and pitch variations to create distinctive audio and visuals, and integrate with AUv3 hosts for advanced music production.

**Highlights:** Play 56k modem handshake sounds as an instrument, Adjust phase and pitch of sounds, Modify visuals alongside audio, AUv3 plugin support, Inspired by ZX Plectrum

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

**In-app purchases:** none


### VAPolyTZFM

[App page](https://appshunter.io/ios/app/vapolytzfm/id6747690642)

This app is a polyphonic synthesizer that utilizes Through Zero FM for musical sound generation. It offers a standalone mode with Ableton Link and MIDI support, as well as an AudioUnit Extension for use with other music software. Built-in effects and iCloud Drive integration enhance its creative capabilities.

**Highlights:** Through Zero FM synthesis, AudioUnit Extension (AUv3) support, Ableton Link and MIDI connectivity, Built-in effects suite, iCloud Drive project sharing, Analog style step sequencer, Up to 8 voice polyphony

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dial Upstrum free?

Dial Upstrum costs $3.99, with no in-app purchases.

### Is VAPolyTZFM free?

VAPolyTZFM costs $14.99, with no in-app purchases.

### Which has better reviews, Dial Upstrum or VAPolyTZFM?

VAPolyTZFM is rated higher. Dial Upstrum averages 3.7 out of 5 from 3 ratings, while VAPolyTZFM averages 5.0 from 3 ratings.

### Do Dial Upstrum or VAPolyTZFM have ads?

Neither Dial Upstrum nor VAPolyTZFM shows ads.

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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.*