# iSyn Poly vs Sunrizer synth

The clearest difference is price: iSyn Poly at $0.99 against Sunrizer synth's $12.99. iSyn Poly also leads on iOS requirement (8.0 vs 10.3). Sunrizer synth's advantage is rating (4.7 vs 4.3) and review sentiment (88% vs 64%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

iSyn Poly costs $0.99 and Sunrizer synth $12.99 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 4.3. That said, the two scores are not equally well evidenced: Sunrizer synth has 183 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 64% of iSyn Poly's written reviews are positive against 88% of Sunrizer synth's.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | iSyn Poly | Sunrizer synth |
| --- | --- | --- |
| Price | **$0.99** | $12.99 |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/isyn-poly/id443141370/reviews) | **[4.7 (183 ratings)](https://appshunter.io/ios/app/sunrizer-synth/id443663267/reviews)** |
| Number of ratings | 4 | **183** |
| Positive reviews | 64.0% of reviews | **87.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Paid | Paid |
| Size | 19 MB | 28 MB |
| Requires iOS | **8.0** | 10.3 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### iSyn Poly

[App page](https://appshunter.io/ios/app/isyn-poly/id443141370)

Create electronic music with three virtual analog synthesizers and a drum machine. Features a full sequencer for arranging songs and live editing capabilities. Supports external MIDI keyboards for enhanced control.

**Highlights:** Three programmable virtual analog synthesizers, Sample playback drum machine with 17 kits, Full-featured four-track sequencer, Gesture-oriented user interface for live editing, Support for CoreMIDI compatible hardware keyboards, Global effects unit with phaser, flanger, chorus, and delay

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iSyn Poly free?

iSyn Poly costs $0.99, with no in-app purchases.

### Is Sunrizer synth free?

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

### Which has better reviews, iSyn Poly or Sunrizer synth?

Sunrizer synth is rated higher. iSyn Poly averages 4.3 out of 5 from 4 ratings, while Sunrizer synth averages 4.7 from 183 ratings.

### Do iSyn Poly or Sunrizer synth have ads?

Neither iSyn Poly nor Sunrizer synth shows ads.

### Which is updated more often, iSyn Poly or Sunrizer synth?

iSyn Poly ships an update every 6 months, and Sunrizer synth every 6 months. Most recently, iSyn Poly was updated on September 25, 2026 and Sunrizer synth on October 13, 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.*