# iSequence HD vs iDousyn

The clearest difference is price: iSequence HD at Free against iDousyn's $5.99. iSequence HD also leads on review sentiment (77% vs 34%) and iOS requirement (15.6 vs 26.0). iDousyn's advantage is ratings volume (161 vs 33). On rating, update cadence, ads and in-app purchases there is nothing between them.

iSequence HD is free to download; iDousyn costs $5.99 up front. iSequence HD sells 8 one-off in-app purchases and iDousyn sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.2 for iSequence HD against 4.2 for iDousyn. Both are backed by a comparable volume of ratings — 33 and 161 respectively. Written reviews are what separate them: 77% of iSequence HD's written reviews are positive against 34% of iDousyn's.

iSequence HD ships an update every 3 months, iDousyn every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | iSequence HD | iDousyn |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.2 (33 ratings)](https://appshunter.io/ios/app/isequence-hd/id369873168/reviews) | **[4.2 (161 ratings)](https://appshunter.io/ios/app/idousyn/id421852860/reviews)** |
| Number of ratings | 33 | **161** |
| Positive reviews | **76.6% of reviews** | 34.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 156 MB | 1.2 GB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Jorge Lozada](https://appshunter.io/developer/421852863) |

## 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


### iDousyn

[App page](https://appshunter.io/ios/app/idousyn/id421852860)

This app transforms your device into a professional music production tool. It features a sample-based synthesizer with dual-layer sampling, advanced filters, and a professional effects chain. Create immersive sounds and build captivating tracks with an intuitive interface and extensive sound library.

**Highlights:** Dual-layer sampling, Advanced filters and EQ, Professional effects chain, Creative chord pads, MIDI mastery, Expansive sound library

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | Free | one-time |

**What reviewers like**

- 👍 Good clean sounds
- 👍 Simple to use
- 👍 Low CPU usage
- 👍 Sounds great
- 👍 Great piano and strings app

**What reviewers complain about**

- 🐛 Ads pop up making it unplayable
- 🐛 Full version still displays full-page ads
- 🐛 Ads appear on the front page
- 🐛 Ads are annoying
- 🐛 Totally unusable product

**Reported bugs**

- App crashes immediately
- Full version displays full-page ads
- Ads appear on the front page
- New update has ads
- Implemented trackers

**Requested features**

- Adaptive Crasher (AUV3, Adaptive Cubasis and Zenbeats)
- AUV3 support
- Audiobus compatibility
- MIDI IN for better keyboard control
- Background audio option


## Frequently asked questions

### Is iSequence HD free?

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

### Is iDousyn free?

iDousyn costs $5.99, and also offers in-app purchases.

### Which has better reviews, iSequence HD or iDousyn?

iDousyn is rated higher. iSequence HD averages 4.2 out of 5 from 33 ratings, while iDousyn averages 4.2 from 161 ratings.

### Do iSequence HD or iDousyn have ads?

Neither iSequence HD nor iDousyn shows ads.

### Which is updated more often, iSequence HD or iDousyn?

iSequence HD ships an update every 3 months, and iDousyn every 2 months. Most recently, iSequence HD was updated on November 1, 2026 and iDousyn on November 1, 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.*