Comparison

Streichfett vs PolyDelay

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

PolyDelay

This audio effect plugin creates unique polyrhythmic delays and familiar delay patterns. It syncs to host tempo and offers advanced tone-shaping options like filters and modulation.

Highlights
  • Polyrhythmic delay calculations
  • Host tempo sync
  • Dual delay lines
  • Stereo width control
  • High and low pass filters
  • Stereo modulation
  • Internal limiting
Read full description

PolyDelay Polyrhythmic Delay Plugin (AUv3) PolyDelay is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic Pro or GarageBand. Overview PolyDelay is a dual delay line / stereo effect with optional host tempo sync. While PolyDelay can be used to create interesting stereo polyrhythmic delays, it can also produce more familiar delay patterns such as dotted eighth and quarter note triplets. Polyrhythms, Divisions and Beats PolyDelay calculates delay times based on a BPM (beats per minute) tempo, and the polyrhythmic notation of D:B, where D = divisions and B = beats. For example, 3:2 would mean that the time for 2 beats should be divided by 3. If you're more use to the idea of note lengths and delay times, such as quarter notes and dotted eighths, etc., this might be confusing at first, but hopefully this guide will help. Firstly, everything starts with the beat! So, for 120BPM, each beat (or quarter note) will be half a second, or 500ms. So if you want a quarter note delay, you want 1 division within one beat, so you would set Divs and Beats to 1. Here are some typical note values, lengths (120BPM) and their D:B values: 1/4 = 500ms = 1:1 (take the length of one beat, and divide that by one) 1/8 = 250ms = 2:1 (take the length of one beat, and divide that by two) 1/16 = 125ms = 4:1 (etc.) 1/32 = 63ms = 8:1 (etc.) See how the divisions are doubled-up for each note? And here are some dotted and triplet note examples - see how the D:B numbers start to get interesting! 1/4D = 750ms = 2:3 1/4T = 333ms = 3:2 1/8D = 375ms = 4:3 1/8T = 167ms = 3:1 A classic stereo delay would be 1:1 (1/4) left, and 4:3 (1/8D) right with Width set to max. If you want a really long delay, a 1:8 setting would give you 4 seconds at 120BPM with Multiply set to Normal, or 8 seconds set to Half. The Presets also include some typical (and not so typical!) examples to get you started. The fun really starts when you start mixing "unusual" (typically odd numbers) divisions and beats, such as 5:4 or 2:7. These sorts of relationships are what we typically refer to as polyrhythms. Try experimenting with PolyDelay on simple sequences and drum parts / patterns and you may start to hear all sorts of interesting rhythmic interplay as your brain tries to figure out what's going on! For additional tone-shaping, PolyDelay includes variable stereo width, a high and low pass filter, stereo modulation and internal limiting to keep audio levels in check. For more info and support please visit: www.waverley-instruments.com/robjackson

Screenshots

Streichfett1 screens
PolyDelay4 screens

Verdict

The call

The clearest difference is price: PolyDelay at $1.99 against Streichfett's $14.99. PolyDelay also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 78%). Streichfett's advantage is ratings volume (19 vs 3). On update cadence, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Streichfett costs $14.99 and PolyDelay $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PolyDelay holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Streichfett has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 78% of Streichfett's written reviews are positive against 100% of PolyDelay's.

UpkeepUpdate frequency

Streichfett ships an update every 4 months, PolyDelay every 3 months. The most recent releases landed on September 29, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 4 level
Streichfett versus PolyDelay: the parameters behind the verdict, then further details
ParameterStreichfettPolyDelay
Price$14.99$1.99 — better
Rating4.6 (19 ratings)5.0 (3 ratings) — better
Positive reviews77.8% of reviews100.0% of reviews — better
Number of ratings19 — better3
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.012.0 — better
Further details — not scored
Size8 MB13 MB
Age rating4+4+
DeveloperWaldorf MusicRob Jackson

Customer experience

Streichfett

All ratings19 ratings
Positive89.5%
Neutral0.0%
Negative10.5%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

PolyDelay

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Streichfett

No in-app purchases

None

PolyDelay

No in-app purchases

Questions

Is Streichfett free?
Streichfett costs $14.99, with no in-app purchases.
Is PolyDelay free?
PolyDelay costs $1.99, with no in-app purchases.
Which has better reviews, Streichfett or PolyDelay?
PolyDelay is rated higher. Streichfett averages 4.6 out of 5 from 19 ratings, while PolyDelay averages 5.0 from 3 ratings.
Do Streichfett or PolyDelay have ads?
Neither Streichfett nor PolyDelay shows ads.
Which is updated more often, Streichfett or PolyDelay?
Streichfett ships an update every 4 months, and PolyDelay every 3 months. Most recently, Streichfett was updated on September 29, 2026 and PolyDelay on September 10, 2026.

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