PD Space Guitar Synthesizer 2 vs StringLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PD Space Guitar Synthesizer 2
Create unique guitar sounds with a powerful synthesizer featuring polyphonic waves, pitchshifting, modulation, and advanced effects. Explore futuristic and classic tones, and control parameters with external pedals. Requires an audio interface for instrument connection.
- Polyphonic pitch shifter
- Waveshaper and modulation
- Harmonizer modes
- Amp with EQ and overdrive
- Modulator with chorus, phaser
- Multi-tap delay
- Cabinet IR speaker simulation
- Remote control functions
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PD Space Guitar Synthesizer 2 pimps up your guitartone with polyphonic saw and square-like waves, pitchshifting, modulation, filtering and much, much more! The pitchshifter alone is allready worth the money, according to some of our users ;) Instead of all the nostalgic tubeamp stuff, you can create new fresh sounds that can sound anything from really old fashioned to really futuristic. ** Please note the following: you need an audiointerface to get your instrument connected to your iphone/ipad Effects on board: Polyphonic low latency Pitch Shifter (adjustable latency for different instrument/usage) Polyphonic waveshaper Polyphonic modulation Harmoniser: doubler, overtone and intelligent harmoniser modes Amp with multimode filter for (auto)wah and more) , EQ, limiter, overdrive, squeel/growl Modulator with chorus, rotator & phaser modes Delay with multiple taps, andfeedback tone control. Cabinet IR for speaker simulation Reverb with Simple Reverb mode and IIR reverbs Remote controls for free assignalbe extra effects via builtin envelop followers Remote pitch control ( whammy ) Remote HOLD pedal functions: from normal holds to unique piano damper style holds!
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.
Screenshots
Verdict
The clearest difference is rating: PD Space Guitar Synthesizer 2 at 4.8 against StringLab's 4.3. PD Space Guitar Synthesizer 2 also leads on review sentiment (78% vs 63%) and price ($12.99 vs $14.99). StringLab's advantage is update cadence (every 10 days vs every 14 months). On ratings volume, 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
PD Space Guitar Synthesizer 2 costs $12.99 and StringLab $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PD Space Guitar Synthesizer 2 holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 16 and 15 respectively. Written reviews point the same way: 78% of PD Space Guitar Synthesizer 2's written reviews are positive against 63% of StringLab's.
PD Space Guitar Synthesizer 2 ships an update every 14 months, StringLab every 10 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | PD Space Guitar Synthesizer 2 | StringLab |
|---|---|---|
| Price | $12.99 — better | $14.99 |
| Rating | 4.8 (16 ratings) — better | 4.3 (15 ratings) |
| Positive reviews | 77.8% of reviews — better | 62.5% of reviews |
| Number of ratings | 16 — better | 15 |
| Update frequency | Every 14 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 27 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Driessen | 4Pockets.com |
Customer experience
PD Space Guitar Synthesizer 2
StringLab
In-app purchases
PD Space Guitar Synthesizer 2
No in-app purchases
StringLab
No in-app purchases
Questions
Is PD Space Guitar Synthesizer 2 free?
Is StringLab free?
Which has better reviews, PD Space Guitar Synthesizer 2 or StringLab?
Do PD Space Guitar Synthesizer 2 or StringLab have ads?
Which is updated more often, PD Space Guitar Synthesizer 2 or StringLab?
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