Comparison

Stark Amp Simulator vs Cube Synth Pro

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

Head to head
About

Stark Amp Simulator

This app simulates guitar and bass amplifiers, cabinets, and rooms, offering extensive customization. It includes a pedal board with various effects that can be arranged in any order. Explore a wide range of amp and cabinet profiles for diverse sonic possibilities.

Highlights
  • Four processing modules: Amplifier, Cabinet, Room, Effects
  • 12 distinct amplifier profiles
  • 10 cabinet simulations with stereo width control
  • 6 room simulations with adjustable size and decay
  • Pedal board with 4 slots for 14 effects
  • Drag-and-drop effects reordering
Read full description

STARK is a fully fledged amplifier simulator consisting of four modules: Amplifier, Cabinet, Room and effects slots. These modules are processing audio separately, which makes it possible to combine different amplifiers with different cabinets and rooms. The amp module offers 12 different amplifier profiles. It has both a clean mode and a overdrive mode, an equalizer functionality (including presence), and a booster controlling the end stage amplification saturation. Cabinet simulation consists of 10 different cabinets of various sizes and sound. This module also offers a stereo width knob that simulates the distance between two microphones put in front of the cone. Room simulation offers 6 different kinds of rooms, where each room size can be changed between Small, Medium and Large. There’s also a decay parameter controlling reflectivity of the walls and a dry/wet mix. The pedal board contains 4 slots where any of the 14 effects can be inserted. The order of the pedals can easily be changed using drag and drop. Available amps • American Guitar 1 - An edgy amp that rounds of nicely at the top • American Guitar 2 - Similar to American Guitar 1, but with some more presence • British Guitar A 1 - Gives a full sound with crisp • British Guitar A 2 - Similar to British Guitar A 1, but with more body • British Guitar B 1 - A slightly saturated amp with nice character in the high mids • British Guitar B 2 - Is just like British Guitar B 1 a bit saturated, but with a more linear frequency response • Vintage Guitar - Gives that perfect thickness when playing jazz and soul • General Tube Amp - Low saturation with a fairly linear frequency response • Garage Sale Amp - Limited frequency response and saturates. The obvious LoFi choice • American Bass - A versatile pro bass amp • British Bass - Works fine for more edgy bass playing • Vintage Bass - Perfect for soul/jazz/RnB Available cabinets • Wide Small - Small speakers, lots of resonances • Tight Small - Small single speakers, few resonances • Wide Combo - Medium speakers, lots of resonances • Tight Combo - Medium speakers, few resonances • Wide Normal - Medium speakers, moderate resonances • Tight Large - Full range speakers, few resonances • Wide Large - Full range speakers, lots of resonances • Radiola - Small (broken) speakers, moderate resonances • Bass - Low end speaker/Medium speakers, few resonances • Passthrough - Full range speakers, no resonances Available ambiences • Normal - A good sounding recording room • Dark - A room that gives attenuated high frequencies • Bright - More significant reflections at higher frequencies • Cold - A room with attenuated low frequencies • Warm - Gives a livingroom:ish sound • Boomy - Loud and lots of resonances Available FX pedals • Delay - Digital stereo delay • Chorus - Classic chorus • Flanger - Flanger with feedback, tone, speed, mix and amount • Phaser - Classic phaser with the option to decide how many stages to be used • Reverb - Digital reverb • Vibrato - A stereo vibrato with reshapeable curve • Tremolo - A stereo tremolo with reshapeable curve • Equalizer - 6 band peak filter with fixed frequencies • Compressor - Simple one-knob compressor • Booster - Signal booster (gain, bass and treble) • Distortion - Simple distortion pedal with tone control • Distortion+ - Complex distortion pedal with optional distortion algorithms • Gate - Simple gate • Multiband Gate - Four band spectral gate There are also about 100 predefined factory presets covering most scenarios. Full documentation available inside the app or at https://klevgrand.se/downloads/stark-docs/ Audio examples and more info at https://klevgrand.se/products/stark Note: STARK consumes a lot of CPU and RAM, so if you’re having trouble using multiple instances at the same time, try to freeze some tracks and/or increase the buffer size.

About

Cube Synth Pro

Explore the power of additive synthesis with this app, allowing you to create complex soundscapes, vocal phrases, and rhythms. Easily morph between sound sources or dive deep into individual parameter control for precise sound design. Mimic natural instruments or vintage analog synths with unique features.

Highlights
  • Additive synthesis engine
  • Sound morphing capabilities
  • Over 400 sound presets
  • Programmable arpeggiator
  • Multiple built-in effects
  • Standalone and AUv3 support
Features
Read full description

Cube Synth Pro brings you the power and complexity of additive synthesis to your iPad studio. This kind of synthesis is well known for its potential capability of creating virtually any sound you can think of. But it’s also well renown for its huge amount of parameters you have to control for reasonable results. Therefore only a few synthesisers exists which uses this mighty synthesis technology. With Cube Synth Pro this prejudice will no longer be true. Specific sound morphing capabilities enables you to easily create complex evolving sound scapes, vocal phrases or stunning rhythms simply by choosing up to four sound sources from a predefined set. Then add one of the predefined envelopes and a unique, complex sound preset containing thousands of parameters is created! If you want to dive deeper into the inner secrets of this synthesis monster you can manipulate each parameter individually to get precise control over the sound. A number of high level parameters such as Brightness and Harmonic spread control hundreds of synthesis parameters in a way modelled after the inner workings of natural instruments. In addition to emulating natural instruments Cube Synth Pro gives you the ability to mimic the behaviour of the sound characteristic of vintage polyphonic synths by modelling the slight deviation from perfection which are inherent of analog systems. Cube Synth Pro gives you also a new method of getting randomly generated sound patches in a way you never experienced before: roll the dice! Every single try gives you a new unique sound patch, really every try, promised… Synthesis • Over 400 sound presets • Four morphing sound sources • Up to 512 partials per voice • Harmonic/Inharmonic spectra • User programmable noise spectra • Morphing filter banks • Unison mode with up to 8 oscillators per voice • Unique voice detuning scheme to simulate imperfections of poly analog synths. • 3 Envelopes with 64 time/level segments and tempo sync • Multi level random preset generator • 64 time/level segments per envelope Arpeggiator • Uses programmable sequences with up to 32 steps. • Can trigger single notes and chords. • Unique randomizer generates Arpeggios with 100% usability. • 32 Arpeggios included, unlimited useer arpeggios possible. • For each step you can program tie, accent, transposition and note order Effects • Chorus • Phaser • Overdrive • Ensemble • Echo/Delay • Reverb Global • Standalone App • AudioUnit AUv3 • Audiobus 3 compatible (Input slot) with state saving • Support for Ableton Link. • CoreMIDI / Virtual MIDI / Bluetooth MIDI • Audio recorder.

Verdict

The call

The clearest difference is price: Cube Synth Pro at $9.99 against Stark Amp Simulator's $26.99. Cube Synth Pro also leads on rating (4.3 vs 3.7) and update cadence (every 2 months vs every 12 months). On ratings volume, ads, in-app purchases and device support 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

Stark Amp Simulator costs $26.99 and Cube Synth Pro $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Cube Synth Pro holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 20 and 16 respectively. Written reviews point the same way: 70% of Stark Amp Simulator's written reviews are positive against 80% of Cube Synth Pro's.

UpkeepUpdate frequency

Stark Amp Simulator ships an update every 12 months, Cube Synth Pro every 2 months. The most recent releases landed on October 5, 2026 and September 25, 2026 respectively.

Scorecard5 real differences · 5 level
Stark Amp Simulator versus Cube Synth Pro: the parameters behind the verdict, then further details
ParameterStark Amp SimulatorCube Synth Pro
Price$26.99$9.99 — better
Rating3.7 (20 ratings)4.3 (16 ratings) — better
Positive reviews69.6% of reviews80.0% of reviews — better
Number of ratings20 — better16
Update frequencyEvery 12 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPadiPad
Requires iOS13.012.0 — better
Further details — not scored
Size23 MB52 MB
Age rating4+4+
DeveloperKlevgrand Produkter ABHarry Gohs

Customer experience

Stark Amp Simulator

All ratings20 ratings
Positive55.0%
Neutral15.0%
Negative30.0%
Written reviews23 reviews
Positive69.6%
Neutral13.0%
Negative17.4%

Cube Synth Pro

All ratings16 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

Stark Amp Simulator

No in-app purchases

None

Cube Synth Pro

No in-app purchases

Questions

Is Stark Amp Simulator free?
Stark Amp Simulator costs $26.99, with no in-app purchases.
Is Cube Synth Pro free?
Cube Synth Pro costs $9.99, with no in-app purchases.
Which has better reviews, Stark Amp Simulator or Cube Synth Pro?
Cube Synth Pro is rated higher. Stark Amp Simulator averages 3.7 out of 5 from 20 ratings, while Cube Synth Pro averages 4.3 from 16 ratings.
Do Stark Amp Simulator or Cube Synth Pro have ads?
Neither Stark Amp Simulator nor Cube Synth Pro shows ads.
Which is updated more often, Stark Amp Simulator or Cube Synth Pro?
Stark Amp Simulator ships an update every 12 months, and Cube Synth Pro every 2 months. Most recently, Stark Amp Simulator was updated on October 5, 2026 and Cube Synth Pro on September 25, 2026.