# Dial Upstrum — Musical toy with AUv3 support

> Musical instrument app using 56k modem sounds with AUv3 support. (iPhone/iPad app by Dave Sapien Ltd..)

- Source: https://appshunter.io/ios/app/dial-upstrum/id6746068214 (this page in markdown: same URL + `.md`)
- Developer: [Dave Sapien Ltd.](https://appshunter.io/developer/430607180)
- Category: Music, Entertainment
- Price: $3.99
- Rating: 3.70/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 43 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2025-06-15
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/dial-upstrum/id6746068214/reviews.md

## What is Dial Upstrum?

Boot up that beige box, hear the sweet symphony of your 56k modem screeching into life, and prepare to surf the information superhighway like it's 1999!
Play the 56k DialUp handshake sounds as a musical instrument on your iPhone or iPad!
Change the modem sounds (and visuals) phase and pitch to make some weird, wonderful and familiar sounds!
Plugin to your favourite AUv3 host and make unique music unlike anything else. Log on. Dial in.
Based on the critically acclaimed ZX Plectrum! (but with more sounds and flexibility!)

What people say about ZX Plectrum:
"As seen on TV" on Dara O Briain's Go 8 Bit
Used by multi-Platinum band Placebo in their live events.
"ZX Plectrum lets you make music Spectrum style on your iPhone" pocket-lint.com
"Utterly pointless but also utterly engaging"  bamm.tv
"For Nostlagia lovers of a very specific demographic this will sound like heaven"  calmdowntom.com
"The Greatest iPad App of ALL TIME"  conoroneill.net

## Key features

- 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

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/dial-upstrum/id6746068214/reviews.md

### 1/5 — If only you could actually switch sound and play.

*2025-10-04*

I feel mislead
As it seemed to be au and works ok there and standalone works but unless I missing something the sounds keep randomizing and well there are also no parameters etc manual needed. I like crazy junky toy sounds but I can’t reach it yet here.

## Frequently asked questions about Dial Upstrum

### What is Dial Upstrum?

Dial Upstrum is a musical instrument app that uses the sounds of 56k modems. It allows you to play these sounds as a musical instrument, modify their pitch and phase, and even alter accompanying visuals.

### What devices does Dial Upstrum support?

Dial Upstrum is available for iPhone and iPad devices.

### How much does Dial Upstrum cost?

Dial Upstrum is a paid application, priced at $3.99.

### Does Dial Upstrum have ads?

No, Dial Upstrum does not contain advertisements. It is a paid app with no ads.

### Can I use Dial Upstrum with other music apps?

Yes, Dial Upstrum supports AUv3 hosting, allowing you to integrate its unique sounds into your favorite AUv3 compatible music production applications.

### What is the age rating for Dial Upstrum?

Dial Upstrum has an age rating of 4+, making it suitable for a wide range of users.

### How often is Dial Upstrum updated?

Dial Upstrum was last updated on June 15, 2025, with version 1.0. Future updates will depend on developer plans.

### What makes Dial Upstrum unique compared to other music apps?

Dial Upstrum offers a distinctive sound palette by transforming 56k modem noises into a musical instrument. Its focus on retro technology and the ability to manipulate phase and pitch provide a unique creative avenue.

## Version history (last 1 release)

### 1.0 — 2025-06-15

No release notes.

## More apps by Dave Sapien Ltd.

- [ZX Plectrum](https://appshunter.io/ios/app/zx-plectrum/id477244691)
- [PooBarr the pooping bear](https://appshunter.io/ios/app/poobarr-the-pooping-bear/id650755340)
- [Kanso, your moment of Zen](https://appshunter.io/ios/app/kanso-your-moment-of-zen/id1384257762)
- [Paint It Demo](https://appshunter.io/ios/app/paint-it-demo/id1514927174)
- [Painting Books 2+](https://appshunter.io/ios/app/painting-books-2-plus/id1617993769)
- [Kids Coloring, Painting Books](https://appshunter.io/ios/app/kids-coloring-painting-books/id6670751769)

All apps by Dave Sapien Ltd.: https://appshunter.io/developer/430607180

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*