# Tera Pro — Modular PolySynth

> Modular polyphonic synthesizer with diverse synthesis methods and expandable modules. (iPhone/iPad app by Harry Gohs.)

- Source: https://appshunter.io/ios/app/tera-pro/id1578464219 (this page in markdown: same URL + `.md`)
- Developer: [Harry Gohs](https://appshunter.io/developer/382428644)
- Category: Music
- Price: $6.99 with in-app purchases (on sale, was $12.99)
- Rating: 4.60/5 from 155 App Store ratings · 72 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 306 MB
- Languages: American English
- Released: 2022-05-06
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tera-pro/id1578464219/reviews.md

## What is Tera Pro?

Tera Pro brings together all major sound synthesis methods on one table. No matter if you want to recreate sounds from analogue legends or explore modern digital sounds with FM, Waveshaping or Wavetable synthesis. More can be added by In-App Purchases of new modules. Add some flavour of physical modelling and modules for additive synthesis. Combine them altogether for new sound experiences far beyond your wildest dreams. 
Tame this overwhelming amount of possibilities with Tera Pros intelligent user interface showing you only exactly what you need, paired with realtime oscilloscopes and level indicators helping you seeing what’s going on. Connect the modules with a flexible routing method without the visual cluttering of real  wire cables needed in conventional modular synthesisers

FAQ What does Tera Pro have that Tera Synth doesn't have ?

1) Additional Sound Modules

- Spectrum oscillator ( borrowed from the heart of Addictive Synth )
- Wave shaper / folder opens the west coast synthesis
- Vocal Morphing filter
- KARPLUS (aka WaveGuide ) with new "Swarm" mode ( 3 detuned delays )

2) Revised engine

- Analog Polysynth Voice Modelling with characteristic subtle voice variations of timbre, pitch and temporal behaviour to get you "The" Analog Sound.
- 128 vs 32 voices polyphony
- Seamless Sound Switching: change presets during play without cutting off the sound.
- 8 times unison for really heavy ambients
- Envelope generators with Buchla style "end of cycle" trigger for generative music
- Stack/Split Sounds
- New effect section 

3) Redesigned User Interface

- Collapsible modules for clear view of modular structure
- No more nasty popups for LFOs/Envelope generators
- Realtime oscilloscopes added to selected modules

4) New Presets

- About 1000 additional presets in there. Tera never sounded this good...


Tera Pro Specifications

- 128 voice Modular polyphonic Synthesiser
- Mono/Dual/Split Voice Architecture
- Modules for analog and FM synthesis
- Modules for Spectral Synthesis and Additive Synthesis
- Karplus Strong Physical Modelling and Wave Shaping
- MIDI Polyphonic Expression (MPE)
- Vintage voice modelling for organic warm sound character
- 1800+ Factory presets included
- PDF Manual included
- Standalone, AUv3 and IAA compatible
- Ableton Link
- Bluetooth MIDI
- ...

Additional modules through In-App Purchases:

- Classic Wavetable synthesis with Import
- Classic 6-OP FM Synthesis fully compatible to DX7 sysex files.
- BrainZ multiple synthesis module based on MI Plaits Eurorack module.
- RingZ physical modelling module based on MI Rings Eurorack module.
- CloudZ granular synthesis module based on MI Clouds Eurorack module.

## Key features

- Multiple synthesis methods (analog, FM, spectral, additive)
- Physical modeling and wave shaping
- Intelligent user interface with realtime scopes
- Flexible module routing
- 128-voice polyphony with vintage voice modeling
- Seamless sound switching
- Extensive preset library

## Pricing and in-app purchases

Base price: $6.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Module CloudZ | $9.99 | one-time |
| Module Waves | $5.99 | one-time |
| Module BrainZ | $6.99 | one-time |
| FM 7 module | $5.99 | one-time |
| Module RingZ | $5.99 | one-time |
| Library WaveShaper | $0.99 | one-time |


## What do users think of Tera Pro?

Overall sentiment: positive

**Pros**

- 🎵 Exceptional sound quality and versatile synthesis capabilities
- 💡 Innovative modular workflow with flexible architecture
- 🎛️ Extensive preset library (1000+ presets)
- 🔧 Powerful sound design tools with multiple synthesis types
- 📱 Available on both iOS and macOS (M1)
- 🎹 Excellent IAP modules (BrainZ, Waves, FM7, RingZ)
- 🎨 Visual feedback with oscilloscope displays
- 🎯 Responsive filter with great resonance
- 🔄 Useful randomize function for patch generation
- ⚡ Strong arpeggiator with multi-lane capabilities
- 🎪 Dual-layer synthesis engine for complex sounds
- 🌙 Dark mode support
- 🎚️ Excellent MPE implementation

**Cons**

- 🎮 Steep learning curve and complex UI
- ⌨️ Unconventional on-screen keyboard design
- 🐛 Frequent crashes and stability issues
- 🔊 Dangerously loud output without limiter
- ⚙️ UI elements sometimes unresponsive or laggy
- 💾 Hidden file structure makes backup difficult
- 🎹 Key Hold feature buried in menus
- 🔒 Locked layer editing (can only edit one at a time)
- ⚠️ Some presets produce noise or no sound
- 🖥️ High CPU usage on older devices
- 📱 Battery drain issues in AUM on iPad
- 🎚️ Wavetable oscillator sometimes silent
- ❌ No MIDI Panic button readily accessible

**Commonly reported bugs**

- App crashes on macOS and iOS
- Piano keyboard not appearing
- Wavetable module IAP producing no sound
- In-app purchases disappearing or not activating
- Presets causing white noise or feedback blasts
- UI glitches preventing parameter adjustment
- Randomize function not working with wavetable oscillators
- Arpeggiator losing sync in AUM
- No sound output until patch toggling
- LFO panel crashes when adjusting settings
- Wavetable oscillator remaining silent
- MIDI Learn settings not clearable
- App not appearing in iPad Settings or Files app
- Patches with feedback that require MIDI Panic
- Inconsistent oscillator routing display
- Parameter adjustment randomly not working
- Sample rate unable to be changed

**Most requested features**

- Undo/Redo functionality
- MIDI Panic button (prominent placement)
- Output limiter for safety
- Standard black and white keyboard option
- Favorites/bookmarking system for presets
- MIDI Learn reset/clear functionality
- Key Hold button on main screen
- Sampler module
- Many-to-many modulation matrix
- Fully dark theme on all UI screens
- MIDI Program Change support
- Solo and Mute buttons for oscillators
- Partial number indicators for spectral oscillator
- Better file system integration for backups
- Improved velocity/aftertouch separation on keyboard

## Recent user reviews (10 of 72)

All indexed reviews: https://appshunter.io/ios/app/tera-pro/id1578464219/reviews.md

### 5/5 — i love you

*2026-06-26, version 3.0.2*

omg yas

### 5/5 — Universal Apps für unter 10€

*2026-06-10*

bekommen grundsätzlich 5 Sterne, denn das ist lobenswert. Auf dem iPad habe ich es schon getestet. Macht einen guten Eindruck. Der Test am Mac steht noch bevor

### 5/5 — The best!

*2026-02-14*

This app has all of the synth techniques you could ask for!  With all the synth module types and flexibility it is just genius what has been done. The UI takes some getting used to but put in the time and you will be rewarded!  Definitely a BUY!

### 4/5 — Piano keyboard not showing

*2026-02-12*

I’ve tried restarting and deleting app and restarting but piano keyboard won’t appear please help because this is a great synthesizer!!

### 1/5 — Complicated

*2025-10-23*

Overly complex, modular workflow is not so user friendly.

### 5/5 — The Everything Synth

*2025-06-23*

Brilliant Synth. Best on iOS. Incredibly versatile and sounds fantastic. Ignore reviews about it being difficult to use. It really isn't once you get familiar with it. It's well worth the effort!

### 5/5 — the best workhorse synth on ios

*2025-06-09*

the sound possibilities are immense. the mpe implementation is amongst the best. i still wish it had a many to many style mod matrix, obvious use case would be filter 1 cut off being varied by all 3 of an env, an lfo and mpe timbre. but even without such a matrix it keeps beating everything else. very grateful to virsyn for such a massive synth

### 5/5 — Very good synth

*2025-04-04*

Unique, deep and warm sound. Clean and intuitive UI.

### 5/5 — Unique sounds

*2025-01-27*

Using additive and spectral synthesis the almost endless possibilities also happen to be very musical. The interface may seem daunting at first but is actually very useful and smart.
The multi lane arppegiator is an extremely useful feature, with multiple lanes that are multi timbral and as such offer complex, but organic sounding results.
I’ve been using Tera Ion the desktop since it was released. And it only continues to get better. There are so many ways of manipulating sound, but it might seem daunting, it is something once you’re used to the graphical interface is obscenely capable.
There are literally almost every kind of timbre available by using its synthesis engine including a useful, musical randomizer.
But let’s be honest, it is a complex synth and there are a plethora of useful presets ready to be explored and tweaked. It’s an excellent way to learn how the synth works.
There are not many synthesizers that I wax poetic about. VerSyn makes several. If you’re positive you’re never going to want to program look at Teraverse, it’s a cut down version with all of the presets at a very reasonable price. I would encourage anyone thinking of Terraverse to think of Tera Pro, it’s so capable, and to me one of the most fun synthesizers to program.

### 1/5 — Still silly UI

*2025-01-22, version 2.2.0*

You open anything 1) you don’t indicate the current setting, 2) you HAVE to make a choice. 3) you can’t exit without being forced to make a choice. I mean, come on! Really irritating. A whole lot of ‘features’ doesn’t necessarily make a good app. Back to my book.  Mmmzzz…

## Frequently asked questions about Tera Pro

### What kind of synthesis methods does Tera Pro offer?

Tera Pro supports a wide range of synthesis methods including analog, FM, spectral, additive, physical modeling, and wave shaping. This allows for recreating classic sounds and exploring entirely new sonic territories.

### How does Tera Pro handle sound creation and editing?

The app features an intelligent user interface that displays only necessary controls, paired with realtime oscilloscopes and level indicators. Modules can be flexibly routed without visual clutter, making complex sound design more accessible.

### Is Tera Pro a free app, and are there additional costs?

Tera Pro is free to download and use, but it offers additional modules and content through in-app purchases. This allows users to expand their synthesis capabilities and sound palette as needed.

### What are the key advantages of Tera Pro over similar apps?

Tera Pro boasts 128-voice polyphony, vintage voice modeling for analog warmth, seamless sound switching, and a large library of over 1800 factory presets. It also offers advanced features like MPE support and Ableton Link.

### What platforms is Tera Pro compatible with?

Tera Pro is compatible as a standalone application, AUv3, and IAA. It also supports Ableton Link and Bluetooth MIDI, making it versatile for various music production workflows.

## Version history (last 5 releases)

### 3.1.2 — 2026-08-02

- Bugfix CloudZ - Pitch scaling changed

### 3.1.1 — 2026-07-28

- Custom background color - reset with opacity set to zero

### 3.1.0 — 2026-07-24

- new IAP module for granular synthesis CloudZ

### 3.0.2 — 2026-04-02

- fixed ui scaling with iPad 12.9
- new vertical scrolling in AUv3 version

### 3.0.1 — 2026-04-02

This update from Apple will improve the functionality of this app. No new features are included.

Bugfix AU version: modulation parameters now accessible again
Bugfix AU version: UI size problem fixed

## Apps similar to Tera Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Salome - MPE Audio Sampler](https://appshunter.io/ios/app/salome-mpe-audio-sampler/id6468663356) | 4.7 (30) | $7.99 | Music |
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## More apps by Harry Gohs

- [iVoxel](https://appshunter.io/ios/app/ivoxel/id382428641)
- [iSyn Poly](https://appshunter.io/ios/app/isyn-poly/id443141370)
- [Addictive Synth](https://appshunter.io/ios/app/addictive-synth/id447072653)
- [Addictive microSynth](https://appshunter.io/ios/app/addictive-microsynth/id455651228)
- [Harmony Voice](https://appshunter.io/ios/app/harmony-voice/id532501340)
- [AudioReverb](https://appshunter.io/ios/app/audioreverb/id670248970)

All apps by Harry Gohs: https://appshunter.io/developer/382428644

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*