# Sunrizer synth vs iSEM Synthesizer

The clearest difference is rating: Sunrizer synth at 4.7 against iSEM Synthesizer's 4.1. Sunrizer synth also leads on review sentiment (88% vs 74%) and device support (3 vs 1). iSEM Synthesizer's advantage is price ($9.99 vs $12.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Sunrizer synth costs $12.99 and iSEM Synthesizer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sunrizer synth holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 183 and 61 respectively. Written reviews point the same way: 88% of Sunrizer synth's written reviews are positive against 74% of iSEM Synthesizer's.

Sunrizer synth ships an update every 6 months, iSEM Synthesizer every 5 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Sunrizer synth | iSEM Synthesizer |
| --- | --- | --- |
| Price | $12.99 | **$9.99** |
| Rating | **[4.7 (183 ratings)](https://appshunter.io/ios/app/sunrizer-synth/id443663267/reviews)** | [4.1 (61 ratings)](https://appshunter.io/ios/app/isem-synthesizer/id673921187/reviews) |
| Number of ratings | **183** | 61 |
| Positive reviews | **87.8% of reviews** | 73.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Size | 28 MB | 80 MB |
| Requires iOS | **10.3** | 12.1 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Arturia](https://appshunter.io/developer/549089551) |

## What reviewers say

### Sunrizer synth

[App page](https://appshunter.io/ios/app/sunrizer-synth/id443663267)

This virtual analog synthesizer offers a rich, warm sound with advanced features like SuperSaw emulation and morphing parameter control. It integrates seamlessly with MIDI hardware and sequencers, providing a professional-grade sound design experience on iOS.

**Highlights:** SuperSaw sound emulation, Dual filters with configurable routing, Morph Group for parameter control, CoreMidi and background audio support, Multi-mode oscillator multiplication, Microtuning support

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

**In-app purchases:** none

**What reviewers like**

- 🎨 Exceptional sound quality
- 👍 Intuitive and easy-to-use interface
- 🎹 Powerful and flexible synth engine
- 💡 Excellent preset library
- 🎚️ Comprehensive modulation and effects

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🔌 Compatibility issues with certain DAWs
- 🔇 Limited audio export options
- 🧭 Confusing preset management

**Reported bugs**

- Synth freezes when loading certain presets
- Inconsistent behavior when using multiple instances
- Graphical issues on newer iPad models

**Requested features**

- Improved MIDI integration and control
- Expanded arpeggiator and sequencing capabilities
- More advanced sound design tools
- Ability to save custom tunings


### iSEM Synthesizer

[App page](https://appshunter.io/ios/app/isem-synthesizer/id673921187)

This app is a touch-based emulation of the classic 1974 Oberheim SEM synthesizer, known for its warm analog sounds. It offers a wide range of sonic possibilities, from fat basses to lively leads, and includes over 500 preset sounds.

**Highlights:** Classic Oberheim SEM emulation, Two oscillators with PWM, 12dB/oct multi-mode filter, Added LFO, Noise, Sub oscillator, Arpeggiator, Portamento, Polyphonic playability, 500+ preset sounds, MIDI and AudioUnit v3 support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎹 Fantastic sound quality
- 💯 Faithful to the original Oberheim SEM
- 🎨 Versatile sound design capabilities
- 🎚️ Intuitive and responsive interface
- 🔊 Rich, warm, and analog-like tones

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🔌 Poor integration with DAWs and MIDI controllers
- 🕰️ Slow preset loading times
- 🔇 Limited modulation options compared to hardware
- 🤔 Uninspiring factory presets

**Reported bugs**

- Preset loading issues
- MIDI connectivity problems
- Unexpected crashes when switching between presets
- Envelopes causing clicks and pops in some patches
- Unresponsive controls when used as an AUv3

**Requested features**

- Add MIDI program change support
- Improve preset management and organization
- Implement a global tuning option
- Enhance MIDI mapping and automation capabilities
- Provide more comprehensive AUv3 support


## Frequently asked questions

### Is Sunrizer synth free?

Sunrizer synth costs $12.99, with no in-app purchases.

### Is iSEM Synthesizer free?

iSEM Synthesizer costs $9.99, with no in-app purchases.

### Which has better reviews, Sunrizer synth or iSEM Synthesizer?

Sunrizer synth is rated higher. Sunrizer synth averages 4.7 out of 5 from 183 ratings, while iSEM Synthesizer averages 4.1 from 61 ratings.

### Do Sunrizer synth or iSEM Synthesizer have ads?

Neither Sunrizer synth nor iSEM Synthesizer shows ads.

### Which is updated more often, Sunrizer synth or iSEM Synthesizer?

Sunrizer synth ships an update every 6 months, and iSEM Synthesizer every 5 months. Most recently, Sunrizer synth was updated on October 13, 2026 and iSEM Synthesizer on October 15, 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.*