Honestly a good app
Perfect for like weird physiological horror type music for my movie so I think this really good
Free
In-App Purchases
About
Transform your device into a versatile synthesizer with a touch-sensitive keyboard, morphing oscillators, and a resonant low-pass filter. Explore 100 presets, add real-time effects, and record your performances. Connect MIDI controllers for expanded creative possibilities.
✓Slide-to-play keyboard with pitch/mod wheels
✓Dual morphing wavetable oscillators
✓Moog-style low-pass filter
✓100 hand-crafted presets
✓Real-time effects (reverb, delay, bit-crusher)
✓Record and share performances
✓MIDI controller support
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What's New in Synth Box
1.0.2
September 17, 2026
This update improves playability and consistency: • Smoother keyboard resizing • More predictable MIDI transpose and octave controls • Refined startup sound and general polish
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Subscriptions & In-App Purchases
Monthly
Synth Box Monthly Price
$3.991 Month
User reviews
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FAQ
What is Synth Box?
Synth Box is a mobile music synthesizer that turns your iPhone and iPad into a versatile instrument. It features a playable keyboard, sound-shaping tools, effects, and recording capabilities.
Is Synth Box free to use?
Synth Box is free to play, offering 20 starter presets and basic synthesizer functions. To unlock all 100 presets, recording, saving custom patches, and MIDI support, a premium upgrade is required.
What are the premium subscription options for Synth Box?
Premium access can be obtained through a monthly subscription ($3.99/month), a yearly subscription ($19.99/year) with a 3-day free trial, or a one-time Lifetime purchase to unlock all features permanently.
Can I use Synth Box with external MIDI controllers?
Yes, Synth Box fully supports connecting external USB or Bluetooth MIDI controllers. You can play Synth Box with external keyboards, wheels, and knobs, and even send notes back out to other apps or gear.
Does Synth Box work offline?
Yes, Synth Box is designed to work fully offline, allowing you to create music without an internet connection. No account or sign-up is required, and your data is never collected.
How often is Synth Box updated?
The latest version of Synth Box is 1.0.2, last updated on September 17, 2026. Updates typically include new features, sound improvements, and bug fixes to enhance the user experience.
What devices is Synth Box compatible with?
Synth Box is designed for iPhone and iPad. It is compatible with iOS devices and offers both light and dark themes for a comfortable user experience.
What kind of sounds can I create with Synth Box?
Synth Box offers two morphing wavetable oscillators, a sub oscillator, FM, and noise for rich tones. Combined with a Moog-style low-pass filter and ADSR envelope, you can create a wide range of sounds from basses and leads to pads and FX.
