Tera Synth vs ShockWave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tera Synth
Create unique sounds beyond traditional synthesizers with a modular analog and digital synthesis workstation. Combine physical modeling, wireless patching, and built-in effects for a fat, individual sound. Features a programmable arpeggiator and live playing options.
- Modular analog and digital synthesis
- Physical modeling modules
- Wireless patching and modulation routing
- Built-in distortion, delay, chorus, phaser, and reverb effects
- Programmable arpeggiator
- Live playing with onscreen keyboard and MIDI support
- Audiobus and Inter-App-Audio integration
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Tera Synth - Modular Analog Synthesizer Explore new sound spaces with Tera Synth that go beyond the emulation of synthesizer legends. Use the power of analog and digital synthesis combined with new modules for physical modelling. Wireless patching of modules combined with an intelligible modulation routing simplifies the development of new synthesizer designs from scratch. Distortion effect, Delay/Chorus/Phaser and Reverb effects give your sounds the final polishing. Tera Synth gives your music an individual character with its unique fat sound. The well-designed algorithms and the economical modular structure provides you with a comparatively high voice yield. Precise timing with the unique built-in Arpeggiator let you feel the rhythm. Tera Synth supports Audiobus and Inter-App-Audio for integration with other Music Apps. Modular Analog Synthesis • Modular synthesizer with free connections between modules. • 25 Sound Modules • 4 Low frequency oscillators • 4 Standard ADSR Envelope generators. • 4 Multi Segment Envelopes with tempo sync. • 64 time/level segments per envelope • Monophonic or polyphonic with up to 32 voices. • More than 920 factory presets, unlimited user presets can be shared. FX • Chorus with four delay lines. • 8 pole Analog Phaser. • Distortion effect with Tube/Tape emulation • Stereo Echo/Delay effect. • Hi end reverberation unit. Live • Play melodies live with the onscreen keyboard. Drag fingers for slides and vibrato. • Optionally use CoreMIDI* compatible hardware keyboard. • Dozens of scales selectable • Variable Keyboard layout for scale optimized playing Full featured programmable 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 Global • Audiobus 3 compatible (Input slot) with Preset saving. • Inter App Audio • AudioUnit AUv3 with parameter automation • Ableton Link compatible • Audio pasteboard. Copy audio recordings to Clipboard for use with other Apps • Exchange user presets with File Sharing in iTunes. • Support for MIDI input/output connections. • MIDI learn functionality.
ShockWave
This app is a monophonic synthesizer for iOS and AUv3 plugins, utilizing Phase Distortion synthesis. It offers dual PD oscillators, sequencers, LFOs, and envelopes for complex sound design. Almost any control can be modulated by multiple sources, with real-time visual feedback.
- Phase Distortion Synthesis
- Dual PD Oscillators
- Dual 8-step Sequencers
- Dual ASR Envelopes
- Tempo-syncable LFOs
- Extensive Modulation Matrix
- MIDI and MPE Support
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ShockWave is a monophonic Synthesizer designed to bring modular style workflow to the world of iOS & AUv3 plugins. Built around the concept of Phase Distortion (PD) Synthesis, Shockwave includes a pair of PD Oscillators each capable of creating everything from pure Sine Waves over smooth Sawtooth and Square Waves to Resonance & Sync sweeps, filtered Noise and more. In addition to the Synth Voice, ShockWave includes a dedicated control section housing a pair of 8 step sequencers, a sample & hold module as well modules for trigger divisions, logic comparisons and controlled randomness. A pair of Low Frequency Oscillators and 2 Attack/Sustain/Release (ASR) Envelopes serve as main modulation sources and can be used in a number of ways. Envelopes can be triggered from a number of internal sources including other modules such as trigger divider, logic or chance module but can also be connected to each other allowing for a wide range of patches usually only possible in large modular systems. LFOs are individually tempo sync-able and capable of producing total of 5 different waveforms each. The two sequencers can run independently or combine to one 16 step sequence where rate and length can be controlled independently for each of the two. In true modular nature almost any control within ShockWave can be modulated with up to 11 sources - simultaneously. Modulations are setup simply by holding a control and dialling in the desired amount in a list of all available sources. A special X-Ray mode adds a realtime display of all currently active modulations right at their corresponding control making it easy to understand what's happening inside the synthesizer at any given time. Synth Voice and Control Section are accompanied by built-in Delay and Reverb sections placed on send busses with all of their controls including the send levels being available as mod destinations. Last but not least, ShockWave features a solid MIDI implementation including support for, aftertouch, velocity, wheels, custom CC mappings and up to 4 dimensions of expression when using MPE compatible controllers, such as the Roli Seaboard, Linnstrument, Geoshred, KB-1 and others. MIDI Output is supported as well and includes Note and Control Change output generated from various internal sources including Sequencers, Envelopes and LFOs making it possible to control external MIDI gear or chain multiple plugin instances for advanced, self driving patches. Overview: - Semi Modular Monophonic Synth Voice - Phase Distortion Synthesis (PD) - Dual PD Oscillators with 5 Waveforms + Noise - Dual ASR Envelopes with variable trigger source - Dual LFO with Tempo Sync - Cross Modulation with Linear/Exp. FM, PM, AM & RM - Mixer section with individual pan and level controls per oscillator - Output VCA with variable control source - Pattern Generator for generating sequences from various internal sources - Quantizer to force note input into a specific scale (19 Scales + User Scales) - Step Sequencer with 2x8 or 1x16 steps, individual rate and number of steps per row - Trigger Divider for dividing internal trigger sources - Probability Gate for adding controlled randomness - Sample & Hold for additional randomness - Logic Module to create triggers from various internal sources - Built-in Delay & Reverb Effects - MIDI Note and CC output for controlling external gear or chaining multiple instances - Semi Modular Architecture - 11 Modulation Sources - 40 Modulation Destinations - 2 Color Themes MIDI Input: - 4D Expression (Glide, Slide, Pressure & Velocity) - Mod & Pitch-Wheel - Tempo Sync - Custom CC Control MIDI Output: - Note - Control Change Connectivity: - Standalone - AUv3 - AudioBus - IAA
Screenshots
Verdict
The clearest difference is price: Tera Synth at $1.99 against ShockWave's $19.99. Tera Synth also leads on review sentiment (86% vs 53%) and rating (4.8 vs 4.6). ShockWave's advantage is update cadence (every 2 months vs every 4 months) and ratings volume (190 vs 27). On 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
Tera Synth costs $1.99 and ShockWave $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Tera Synth holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: ShockWave has 190 ratings behind it against 27, so its average is the more settled of the two. Written reviews point the same way: 86% of Tera Synth's written reviews are positive against 53% of ShockWave's.
Tera Synth ships an update every 4 months, ShockWave every 2 months. The most recent releases landed on June 10, 2026 and September 21, 2026 respectively.
| Parameter | Tera Synth | ShockWave |
|---|---|---|
| Price | $1.99 — better | $19.99 |
| Rating | 4.8 (27 ratings) — better | 4.6 (190 ratings) |
| Positive reviews | 86.4% of reviews — better | 52.5% of reviews |
| Number of ratings | 27 | 190 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 36 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Harry Gohs | Kai Aras |
Customer experience
Tera Synth
ShockWave
Bugs and requests
Tera Synth
Not enough reviews yet to summarise bugs or requests.
ShockWave
Reported bugs
20 issues- "Bad Signal" errors in AUM, stops sound generation.
- Intermittent "bad signal" prompt in AUM, requires reloading.
- Sounds awful, very distorted with glitchy UI.
- App crashes frequently.
- No sound coming out of AUv3 in GarageBand.
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- More than half of the sounds do not play.
- Performance remains but synth loads blank when returning to work after closing.
- App stops producing sound after a few minutes of use.
- Preset browser causes the app to stop producing sound.
- No audio output on iPhone 6 & 7 plus, sometimes noise when changing presets, keyboard doesn't work.
- Randomize button not viewable on iPhone 6.
- App crashes when returning to a project.
- App crashes on the loading screen on iPhone 11, but works on iPhone 7.
- Hangs and freezes, won't load/work in AUM or GarageBand.
- Horribly laggy, almost unusable.
- Volume is noisy and glitchy.
- Response on dials needs more work.
- Modulation tab issues, unable to turn other knobs properly.
- DAW incompatibility issues.
- App crashing, won't even load.
Requested features
6 requests- Provide a proper manual detailing all parameters and sections with examples.
- Implement a key trigger option for the sequencer to allow MIDI controller playback.
- Add a poly mode.
- Improve documentation and tutorials.
- Standardize knob appearance and response.
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- Increase the number of available patches beyond 128.
In-app purchases
Tera Synth
No in-app purchases
ShockWave
No in-app purchases








