StringLab vs Streichfett
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StringLab
This app is a digital synthesizer that uses physical string modeling to recreate the sounds of various instruments, particularly plucked or hammered strings. It allows users to explore acoustic physics and create unique instrument textures through extensive parameter experimentation.
- Karplus-Strong physical modeling
- Exciter Impact and Noise modes
- Resonator objects with feedback
- Frequency Dispersion support
- External live input
- Preset randomizer and manager
- Drag & Drop preset export
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StringLab is a physical string modeling synthesizer based on Karplus-Strong theory. It is capable of reproducing the sounds of many different types of instruments, but is especially useful in the reproduction of hammered or plucked strings and other types of percussive instruments. It works by passing carefully crafted waveforms and short bursts of white noise through a series of tuned delay lines. The delay lines have an internal feedback loop with a series of filters to mimic the natural decay of harmonics found in a real instrument. StringLab allows you to discover the character of real-world accoustics, exploring the physics of how materials interact. Many new and original textures are born out of experimenting with the settings, so don't be afraid to experiment and create your own unique and dynamic instruments. Features •Karplus Strong based physical modeling. •Exciter Impact with multiple modes. •Exciter Noise with many envelope driven filters. •2 resonator objects with feedback. •8 bands per object with inversion. •4 Coupling modes. •Supports Frequency Dispersion. •Feedback low/high Damping. •Per object Body Filter. •Pitch Deformity. •External live input mode. •Preset randomiser. •Build it Preset Manager & Favourites. •Search Presets. •Drag & Drop preset export of presets. •Supports Color Sets.
Streichfett
Experience the sound of legendary 70s and 80s string synthesizers on your iPad. This app recreates the classic String Machine experience with a dual sound engine for polyphonic strings and an eight-voice solo section, complete with ensemble, phaser, and reverb effects.
- Dual sound engine (String & Solo sections)
- Polyphonic String Section
- Eight-voice Solo Section
- Ensemble Effect
- Phaser and Reverb effects
- Animate Effect for sound morphing
- AUv3 support
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The sound engine of the legendary Waldorf Streichfett hardware is now available for iPad including AUv3 format. The Streichfett takes you back to the days of the legendary String Machines. In the old days, there was no choice – to create a massive wall of sound, you simply needed a String Machine. It was the time when composing contemporary music had no resemblance to doing your annual tax return on a PC. It was the golden years of rock and pop, when even keyboard players simply plugged their instrument into the amp and started playing, instead of labouring over endless preset lists in search of the perfect sound. Now there is Streichfett – and the good old days are coming back. Experience what a real String Synthesizer sounds like. Experience how a homogeneous, extremely dense, floating web of sounds can be created from a raw, basic electronic sound in just a few simple steps. Streichfett combines the best of the previously extinct species of String Synthesizers of the 70s and early 80s. Its dual sound engine features a fully polyphonic String Section and an eight voice Solo Section, which is essential for recreating classic movie sounds from the 70s and 80s. The Ensemble Effect provides depth and movement to the String Section, while the Effects Section adds adjustable Phaser and Reverb effects. Additionally, the Animate Effect can be used to modulate the Strings Registration, allowing spectacular sound morphs. The Solo Section offers presets named Bass, E-Piano or Clavi, and just like with a typical String Machine, the sound has little to do with that name. Instead, these are shimmering and slightly percussive sounds that blend well with the String Section. Although the User Interface is simple and easy to comprehend, it controls a rather complex sound engine which is capable of delivering rich and creamy pads unlike any other instrument.
Screenshots
Verdict
The clearest difference is update cadence: StringLab at every 10 days against Streichfett's every 4 months. StringLab also leads on iOS requirement (13.0 vs 16.0). Streichfett's advantage is rating (4.6 vs 4.3) and review sentiment (78% vs 57%). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
StringLab costs $14.99 and Streichfett $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Streichfett holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 14 and 19 respectively. Written reviews point the same way: 57% of StringLab's written reviews are positive against 78% of Streichfett's.
StringLab ships an update every 10 days, Streichfett every 4 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.
| Parameter | StringLab | Streichfett |
|---|---|---|
| Price | $14.99 | $14.99 |
| Rating | 4.3 (14 ratings) | 4.6 (19 ratings) — better |
| Positive reviews | 57.1% of reviews | 77.8% of reviews — better |
| Number of ratings | 14 | 19 — better |
| Update frequency | Every 10 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #185 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 45 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | Waldorf Music |
Customer experience
StringLab
Streichfett
In-app purchases
StringLab
No in-app purchases
Streichfett
No in-app purchases
Questions
Is StringLab free?
Is Streichfett free?
Which has better reviews, StringLab or Streichfett?
Do StringLab or Streichfett have ads?
Which is updated more often, StringLab or Streichfett?
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