# iSequence HD vs iSyn Poly

The clearest difference is price: iSequence HD at Free against iSyn Poly's $0.99. iSequence HD also leads on review sentiment (77% vs 64%) and ratings volume (33 vs 4). iSyn Poly's advantage is in-app purchases (none vs 8) and iOS requirement (8.0 vs 15.6). On rating, update cadence, ads and device support there is nothing between them.

iSequence HD is free to download; iSyn Poly costs $0.99 up front. iSequence HD sells 8 one-off in-app purchases. iSyn Poly asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for iSequence HD against 4.3 for iSyn Poly. That said, the two scores are not equally well evidenced: iSequence HD has 33 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 77% of iSequence HD's written reviews are positive against 64% of iSyn Poly's.

iSequence HD ships an update every 3 months, iSyn Poly every 6 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | iSequence HD | iSyn Poly |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.2 (33 ratings)](https://appshunter.io/ios/app/isequence-hd/id369873168/reviews) | **[4.3 (4 ratings)](https://appshunter.io/ios/app/isyn-poly/id443141370/reviews)** |
| Number of ratings | **33** | 4 |
| Positive reviews | **76.6% of reviews** | 64.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 156 MB | 19 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Harry Gohs](https://appshunter.io/developer/382428644) |

## What reviewers say

### iSequence HD

[App page](https://appshunter.io/ios/app/isequence-hd/id369873168)

Create professional music on your iPad with an intuitive 8-track sequencer, a vast library of instruments, and flexible mixing with DSP effects. Record, edit, and arrange loops, beats, and melodies in real-time, controlling every aspect of your music project.

**Highlights:** 8-track sequencer, 160+ built-in instruments, Custom instrument sampler, Real-time recording and automation, Step sequencer and FX editor, Flexible mixer with DSP effects, Wi-Fi file sharing

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Funny farm bank | $1.99 | one-time |
| Chiptunes bank | $1.99 | one-time |
| Acoustic bank | $2.99 | one-time |
| Electro/house bank | $2.99 | one-time |
| Trance waves | $2.99 | one-time |
| Loops vol.1 | $2.99 | one-time |
| Loops vol.2 | $2.99 | one-time |
| Beat elements bank | $2.99 | one-time |

**What reviewers like**

- 🚀 Powerful sequencer
- 👍 Intuitive interface
- 🎨 Great sound quality
- 💰 Good value for money
- 🎶 Excellent for music creation

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔇 Limited audio export options
- 🔒 Lack of Audiobus/Inter-App Audio support
- 🔢 Limited track count
- 🔀 Difficulty with time signatures and polyrhythms

**Reported bugs**

- Crashes on startup or during use
- Issues with sample loading and playback
- Inconsistent behavior with certain features
- Compatibility problems with newer iOS versions

**Requested features**

- Expanded track count
- More effects and sound design capabilities
- Audiobus and Inter-App Audio integration
- Improved sample import and management
- Support for more time signatures and rhythms


### 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


## Frequently asked questions

### Is iSequence HD free?

iSequence HD is free to download, with in-app purchases available.

### Is iSyn Poly free?

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

### Which has better reviews, iSequence HD or iSyn Poly?

iSyn Poly is rated higher. iSequence HD averages 4.2 out of 5 from 33 ratings, while iSyn Poly averages 4.3 from 4 ratings.

### Do iSequence HD or iSyn Poly have ads?

Neither iSequence HD nor iSyn Poly shows ads.

### Which is updated more often, iSequence HD or iSyn Poly?

iSequence HD ships an update every 3 months, and iSyn Poly every 6 months. Most recently, iSequence HD was updated on October 23, 2026 and iSyn Poly on October 23, 2026.

---

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