# Steckfeld SF1 — A modular synth built by hand

> A modular synth built by hand (iPhone/iPad app by Daniel Pangerl.)

- Source: https://appshunter.io/ios/app/steckfeld-sf1/id6830018147 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Pangerl](https://appshunter.io/developer/1762982177)
- Category: Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 213 MB
- Languages: American English
- Released: 2026-11-07
- Data updated: 2026-11-07

## What is Steckfeld SF1?

Steckfeld SF1 is a modular synthesizer you build by hand.

Parts sit on a plate in a grid. Plug them in, run lit cables between them – red for sound, blue for control – and see the whole sound at once. Tap a part and the programmer comes in: a screen and four real knobs.

NINETEEN PARTS, UP TO FOUR OF EACH
• Sources: Analog, Wavetable, FM with four operators, a plucked String, Audio In
• Effects: Filter, EQ, Compressor, Distortion, Chorus, Delay, Reverb
• Utilities: 16-step Sequencer, Arpeggiator, Envelope, LFO, MIDI In, Junction, Cover

YOUR PATCHES, KEPT
A library of factory patches to start from, and your own, saved on your device.

PLAYS WITH YOUR GEAR
• MIDI in over USB, DIN through an interface, Bluetooth and network
• Its own clock or one from outside; sends clock, follows start and stop
• Keeps playing in the background and mixes with other apps
• Put your own pictures on the bay

AN INSTRUMENT WITH CHARACTER
The casing wears with use. Play it long enough and it shows.

TRY IT, THEN BUY IT ONCE
Until you buy it, the SF1 is the shop's demo unit, still in its packaging. Press Try me! and listen first. One in-app purchase unlocks it for good. No subscription.

NO ACCOUNT, NO ANALYTICS, NO TRACKING
Your patches and settings stay on your device.

Requires iOS 18 or later. Runs on iPad and iPhone.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| SF1 Unlock | $17.99 | one-time |


## Is Steckfeld SF1 safe?

Not enough ratings yet to assess Steckfeld SF1.

## Is Steckfeld SF1 legit?

Steckfeld SF1 has limited verification signals. The AppsHunter Legitimacy Score for Steckfeld SF1 is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.2.0 — 2026-11-07

No release notes.

## More apps by Daniel Pangerl

- [X Sim Lab](https://appshunter.io/ios/app/x-sim-lab/id6761675489)

All apps by Daniel Pangerl: https://appshunter.io/developer/1762982177

## Related topics

[bianca ackermann](https://appshunter.io/ios/topics/bianca-ackermann)

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*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 2026-11-07.*