Comparison

Synthesizer Sim vs Zynth

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

Head to head
About

Synthesizer Sim

This app transforms your device into a versatile music creation studio, offering a responsive synth keyboard and advanced sound design tools. Explore a wide range of sounds, record your performances, and share your music instantly. It supports MIDI input and includes rhythm tools for practice and live performance.

Highlights
  • Responsive synth keyboard
  • Advanced sound design engine
  • Built-in effects and modulation
  • MIDI keyboard support
  • Rhythm accompaniment and metronome
  • Performance recording and sharing
Read full description

Turn your iPhone or iPad into an expressive synthesizer. Shape original sounds, play with touch or an external MIDI controller, and capture performances for later playback or WAV sharing. SYNTHESIZE YOUR SOUND • Three oscillators plus a sub oscillator • Six waveforms, unison, detune, mixer and stereo pan controls • Amp and filter envelopes with low-pass, high-pass, band-pass and notch modes • Distortion, EQ, chorus, delay and reverb • Two LFOs for pitch, amplitude and filter modulation PLAY AND CONTROL • Responsive keyboard with velocity, sustain, pitch bend and transpose • Poly, mono and legato voice modes with glide • USB, Bluetooth and network MIDI input • MIDI note, velocity, pitch bend and common controller support PRESETS AND TUNING • 96 factory presets for pads, leads, basses and more • Save your own User presets • Western, world and makam scales • Adjustable root, A4 reference and per-note cent offsets • Save custom User tunings RECORD AND SHARE • Record synth performances without microphone access • Replay saved performances with their sound and tuning settings • Export and share recordings as WAV files FREE AND PREMIUM The free version includes 10 factory presets, up to three User presets and tunings, one saved performance, and optional rewarded access to additional sounds. It may display ads. Premium removes ads and unlocks all 96 factory presets, unlimited User presets and tunings, and unlimited saved performances. Choose a monthly or yearly auto-renewing subscription, or a one-time lifetime purchase. Purchases are managed through your App Store account and can be restored in the app. Terms of Use: https://alyakastudio.com/terms/ Privacy Policy: https://alyakastudio.com/privacy-policy/

About

Zynth

This app transforms your device into an expressive electronic instrument. Create unique soundscapes using touch, tilt, and motion with an intuitive interface. It offers multiple waveforms, built-in effects, and dynamic visualizations.

Highlights
  • Gesture-based sound control
  • Multiple waveforms (sine, square, triangle, sawtooth)
  • Built-in audio effects (echo, pitch, modulation)
  • Dynamic visualization
  • Customizable themes
  • Beginner-friendly and advanced options
Features
Read full description

Transform your device into an expressive electronic instrument that responds to touch, tilt, and motion. Create hypnotic soundscapes with an intuitive interface inspired by the theremin and modern synthesis techniques. Features: - Gesture-based sound control with responsive visual feedback - Multiple waveforms: sine, square, triangle, and sawtooth - Built-in audio effects including echo, pitch, and modulation - Dynamic visualization that moves with your music - Dark and light themes with customizable color palettes - Simple enough for beginners, deep enough for experienced musicians - Create and perform anywhere - no external equipment needed Perfect for: - Musicians seeking a new creative tool - Sound designers and experimenters - Visual artists exploring audio - Anyone interested in music creation Download now and start your sonic journey! This app was my submission to the Swift Student Challenge 2025.

Screenshots

Synthesizer Sim4 screens
Zynth4 screens

Verdict

The call

The clearest difference is rating: Synthesizer Sim at 4.3 against Zynth's 3.0. Synthesizer Sim also leads on ratings volume (15 vs 1) and iOS requirement (15.0 vs 17.3). Zynth's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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

Both are free to download. Synthesizer Sim sells 3 in-app purchases, starting at $2.99 per month. Zynth asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Synthesizer Sim holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Synthesizer Sim has 15 ratings behind it against 1, so its average is the more settled of the two.

Scorecard6 real differences · 4 level
Synthesizer Sim versus Zynth: the parameters behind the verdict, then further details
ParameterSynthesizer SimZynth
PriceFreeFree
Rating4.3 (15 ratings) — better3.0 (1 ratings)
Positive reviews—0.0% of reviews
Number of ratings15 — better1
Update frequencyEvery 3 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.3
Further details — not scored
Size53 MB19 MB
Age rating4+4+
DeveloperAlper KahrimanPhilipp Ollmann

Customer experience

Synthesizer Sim

All ratings15 ratings
Positive73.3%
Neutral13.3%
Negative13.3%

Zynth

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

3 purchases

Synthesizer Sim

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly7 Days trial$14.991 Year
One-time1
  • Lifetime Premium$29.99
None

Zynth

No in-app purchases

Questions

Is Synthesizer Sim free?
Synthesizer Sim is free to download, with in-app purchases available.
Is Zynth free?
Zynth is free to download, with no in-app purchases.
Which has better reviews, Synthesizer Sim or Zynth?
Synthesizer Sim is rated higher. Synthesizer Sim averages 4.3 out of 5 from 15 ratings, while Zynth averages 3.0 from 1 ratings.
Do Synthesizer Sim or Zynth have ads?
Synthesizer Sim shows ads; Zynth does not.

Other comparisons