# FRMS vs Tera Pro

The clearest difference is update cadence: Tera Pro at every 5 days against FRMS's every 2 months. Tera Pro also leads on iOS requirement (12.0 vs 17.0). FRMS's advantage is review sentiment (85% vs 69%) and price ($8.99 vs $9.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

FRMS costs $8.99 and Tera Pro $9.99 up front. FRMS sells 10 one-off in-app purchases and Tera Pro sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

FRMS holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 286 and 154 respectively. Written reviews point the same way: 85% of FRMS's written reviews are positive against 69% of Tera Pro's.

FRMS ships an update every 2 months, Tera Pro every 5 days. Both last shipped on November 11, 2026.

## The numbers

| Metric | FRMS | Tera Pro |
| --- | --- | --- |
| Price | **$8.99** | $9.99 |
| Rating | **[4.8 (286 ratings)](https://appshunter.io/ios/app/frms-granular-synthesizer/id1381392223/reviews)** | [4.6 (154 ratings)](https://appshunter.io/ios/app/tera-pro/id1578464219/reviews) |
| Number of ratings | **286** | 154 |
| Positive reviews | **84.6% of reviews** | 69.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 267 MB | 306 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imaginando Lda](https://appshunter.io/developer/895445015) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### FRMS

[App page](https://appshunter.io/ios/app/frms-granular-synthesizer/id1381392223)

This app offers a powerful and flexible layering system for creating unique audio experiences. It blends multiple synthesis types, allowing users to craft everything from ambient soundscapes to glitchy textures. Import your own sounds or use the curated library for endless sonic exploration.

**Highlights:** 4 Synthesis Engines per voice, FM Modes & Operator Stacking, Real-Time Granulation, Deep Modulation & Envelope Control, Advanced FX & Polyphony, MPE Compatibility

**Features:** Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supremeja Music Preset Pack | $8.99 | one-time |
| Sounds Of Saxophone | $8.99 | one-time |
| Glitches From The Heart | $8.99 | one-time |
| Sounds Of Guitar Preset Pack | $8.99 | one-time |
| Antique Shop Preset Pack | $8.99 | one-time |
| Sounds Of Clarinet Preset Pack | $8.99 | one-time |
| Sounds Of Bassoon Preset Pack | $8.99 | one-time |
| Sounds Of Foley 1 | $8.99 | one-time |
| Scratching The Surface 1 | $8.99 | one-time |
| Sounds Of Saxophone 2 Pack | $8.99 | one-time |

**What reviewers like**

- 🎨 Fantastic sound design
- 👍 Intuitive and well-designed interface
- 🎶 Inspiring and creative sound possibilities
- 💻 Works great on iPad and desktop
- 🔑 Excellent preset packs

**What reviewers complain about**

- 🔋 CPU-intensive, can cause performance issues
- 🔇 Bluetooth connectivity problems
- 💰 Expensive in-app purchases

**Reported bugs**

- Crashes and audio glitches in certain DAW environments
- Issues with sample playback and freezing

**Requested features**

- Ability to import larger sample files
- More granular control over modulation parameters
- Undo/redo functionality
- Improved MIDI integration and learn capabilities


### 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 FRMS free?

FRMS costs $8.99, and also offers in-app purchases.

### Is Tera Pro free?

Tera Pro costs $9.99, and also offers in-app purchases.

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

FRMS is rated higher. FRMS averages 4.8 out of 5 from 286 ratings, while Tera Pro averages 4.6 from 154 ratings.

### Do FRMS or Tera Pro have ads?

Neither FRMS nor Tera Pro shows ads.

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

FRMS ships an update every 2 months, and Tera Pro every 5 days. Most recently, FRMS was updated on November 11, 2026 and Tera Pro on November 11, 2026.

---

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