# iSequence HD vs Core Synth HD

The clearest difference is review sentiment: iSequence HD at 77% against Core Synth HD's 31%. iSequence HD also leads on rating (4.2 vs 3.4) and ratings volume (33 vs 5). Core Synth HD's advantage is iOS requirement (8.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. iSequence HD sells 8 one-off in-app purchases and Core Synth HD sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

iSequence HD holds the better App Store score, 4.2 against 3.4. That said, the two scores are not equally well evidenced: iSequence HD has 33 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 77% of iSequence HD's written reviews are positive against 31% of Core Synth HD's.

iSequence HD ships an update every 3 months, Core Synth HD every 4 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | iSequence HD | Core Synth HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (33 ratings)](https://appshunter.io/ios/app/isequence-hd/id369873168/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/core-synth-hd/id446631941/reviews) |
| Number of ratings | **33** | 5 |
| Positive reviews | **76.6% of reviews** | 30.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 156 MB | 10 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Core Engine Apps](https://appshunter.io/developer/382236096) |

## 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


### Core Synth HD

[App page](https://appshunter.io/ios/app/core-synth-hd/id446631941)

Create music with a powerful monophonic synthesizer for iPad. Explore dual oscillators, customizable filters, and an arpeggiator. Save your custom sounds and enhance your live performances with intuitive controls.

**Highlights:** Dual overlapping oscillators, Four wave patterns, Low Pass Filter with ADSR, Volume Envelope Shaper (ADSR), Arpeggiator with multiple modes, Save unlimited patches

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version Upgrade | $1.99 | one-time |

**What reviewers like**

- 👍 Good for learning basics
- 🎶 Nice retro sound emulation
- 💰 Great value for free/low cost
- 🎹 All controls visible
- 💡 Simple and clear interface

**What reviewers complain about**

- 🔇 No sound issues
- 🔇 Sound stopped working
- 🔇 No sound after purchase
- 🔇 No sound on specific iOS versions
- 🐛 Glitching/microclicks

**Reported bugs**

- No sound on iPad Pro
- No sound on iOS 12
- No sound since last update
- Program doesn't start after update
- Ad blocks view

**Requested features**

- Add MIDI support
- Add Audiobus support
- Add recording with copy/paste
- Add sine wave for sub basses
- Add polyphony option


## Frequently asked questions

### Is iSequence HD free?

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

### Is Core Synth HD free?

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

### Which has better reviews, iSequence HD or Core Synth HD?

iSequence HD is rated higher. iSequence HD averages 4.2 out of 5 from 33 ratings, while Core Synth HD averages 3.4 from 5 ratings.

### Do iSequence HD or Core Synth HD have ads?

Neither iSequence HD nor Core Synth HD shows ads.

### Which is updated more often, iSequence HD or Core Synth HD?

iSequence HD ships an update every 3 months, and Core Synth HD every 4 months. Most recently, iSequence HD was updated on October 23, 2026 and Core Synth HD on October 20, 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.*