# Lagrange vs Tera Pro

The clearest difference is in-app purchases: Lagrange at none against Tera Pro's 6. Lagrange also leads on review sentiment (95% vs 69%) and rating (4.8 vs 4.6). Tera Pro's advantage is update cadence (every 5 days vs every 2 weeks) and price ($6.99 vs $8.00). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Lagrange costs $8.00 and Tera Pro $6.99 up front. Tera Pro sells 6 one-off in-app purchases. Lagrange asks for nothing beyond the download.

Lagrange holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 57 and 154 respectively. Written reviews point the same way: 95% of Lagrange's written reviews are positive against 69% of Tera Pro's.

Lagrange ships an update every 2 weeks, Tera Pro every 5 days. Both last shipped on October 21, 2026.

## The numbers

| Metric | Lagrange | Tera Pro |
| --- | --- | --- |
| Price | $8.00 | **$6.99** |
| Rating | **[4.8 (57 ratings)](https://appshunter.io/ios/app/lagrange-auv3-plug-in-synth/id1479000758/reviews)** | [4.6 (154 ratings)](https://appshunter.io/ios/app/tera-pro/id1578464219/reviews) |
| Number of ratings | 57 | **154** |
| Positive reviews | **95.5% of reviews** | 69.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 306 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iceWorks, Inc.](https://appshunter.io/developer/347507439) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### Lagrange

[App page](https://appshunter.io/ios/app/lagrange-auv3-plug-in-synth/id1479000758)

This app is a hybrid synthesizer that simplifies sound creation by using oscillator algorithms to manage complex parameters. It focuses on quickly achieving desired sounds by selecting the appropriate oscillator type.

**Highlights:** AUv3-compatible synthesizer, Simplified sound creation, Oscillator algorithms, Quick sound selection, Hybrid synthesis

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tera Pro

[App page](https://appshunter.io/ios/app/tera-pro/id1578464219)

Explore a vast array of sound synthesis methods, from analog emulations to modern digital techniques. Combine modules for unique sonic textures, enhanced by an intelligent interface and realtime visual feedback. Expand your sound palette with additional modules available through in-app purchases.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

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

**What reviewers like**

- 🎵 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)

**What reviewers complain about**

- 🎮 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

**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

**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


## Frequently asked questions

### Is Lagrange free?

Lagrange costs $8.00, with no in-app purchases.

### Is Tera Pro free?

Tera Pro costs $6.99, and also offers in-app purchases.

### Which has better reviews, Lagrange or Tera Pro?

Lagrange is rated higher. Lagrange averages 4.8 out of 5 from 57 ratings, while Tera Pro averages 4.6 from 154 ratings.

### Do Lagrange or Tera Pro have ads?

Neither Lagrange nor Tera Pro shows ads.

### Which is updated more often, Lagrange or Tera Pro?

Lagrange ships an update every 2 weeks, and Tera Pro every 5 days. Most recently, Lagrange was updated on October 21, 2026 and Tera Pro on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*