Comparison

iSequence HD vs iDousyn

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iSequence HD

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
Read full description

iSequence is a long-running iPad music app appreciated for its speed, simplicity, and distinctive workflow. Build beats, melodies, and arrangements with an intuitive 8-track sequencer with 32-step patterns, shape sounds with its sampler, and mix everything with flexible DSP effects. Whether you are sketching loops or building full tracks, iSequence keeps music creation direct and hands-on. FAST, FLUID WORKFLOW Create patterns, record parts in real time, and edit them without interrupting playback. Switch between tracks, instruments, step sequencing, and automation as you build your song. iSequence is built for sketching ideas quickly, jamming with loops, and arranging complete tracks in a simple, focused environment. INSTRUMENTS • 160 built-in instruments, including acoustic sounds, drum kits, pads, leads, sweeps, and ambient textures • Additional sound banks available in the BankShop • Play with the on-screen piano keyboard or drum pads • Create custom instruments with the built-in sampler • Supports CoreMIDI and MIDI instruments REAL-TIME RECORDING AND AUTOMATION • Record notes as you play • Change tracks and instruments during playback • Use the metronome and slowdown mode for easier recording • Record parameter changes in real time STEP SEQUENCER • 8 tracks with FX curve editing • 32 steps per row / pattern • Instruments are not tied to tracks, allowing flexible sequencing and layering • Edit notes with the piano keyboard, drum pads, and other controls • Adjust note duration, panning, velocity, and gliss • Copy, paste, move, and transpose patterns and selections • Arrange patterns into full song structures MIXER AND EFFECTS • Adjust tempo, master volume, and shuffle • Mute, solo, and set levels for each track • Route tracks to 5 configurable effect channels • Includes Filter, Reverb, Flanger, Delay, Ring Modulator, EQ, Lo-Fi Crusher, Live Looper, and Distortion SAMPLER • Import, record, or paste samples to build custom instruments • Edit loop points, ADSR envelope, and sample mapping • Slice loops and synchronize them to tempo automatically FILE SHARING • Export songs as HSQ, MIDI, or WAV • Import samples and presets • Copy tracks to the audio clipboard • Import HSQ songs

About

iDousyn

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
Read full description

iDousyn transforms your iPhone and iPad into a premium sampler, synthesizer, and AUv3 plugin built for professional music production, beat making, and sound design. Powered by a massive dual-layer rompler engine, it delivers a touch-optimized workflow to create studio-quality music anywhere. Seamlessly integrating as a high-performance AUv3 Audio Unit, iDousyn is the perfect companion for Logic Pro for iPad, GarageBand, Cubasis, AUM, Loopy Pro, and other leading iOS DAWs. Whether you are producing EDM, making hip hop beats, scoring cinematic soundtracks, or designing ambient soundscapes, iDousyn gives you the ultimate sonic palette. Chord Sequencer & Harmony Engine • Ultimate Inspiration: Instantly browse, audition, and map over 432 chord variations and 100 global musical scales directly to your pads—no advanced music theory required. • Timeline Sequencer: Drag and drop your custom chords into the new visual timeline. Program rests, set loop lengths, and let the zero-latency lookahead scheduler play your progressions with perfect tempo synchronization. • Dynamic Performance: 10 customizable Chord Pads featuring intelligent strumming, dual MIDI keyboards, and assignable key ranges with real-time Neon Glow visual feedback. Dual-Layer Synthesis & DSP Effects • True Dual-Layer Rompler: Stack and blend two independent sample oscillators. Fine-tune with octave, semitone, cents, pan, and level controls for massive, evolving textures. • Studio-Grade FX Chain: Shape your tone with multi-mode filters, a parametric EQ, and fully automatable AUv3 effects including Reverb, Delay, Chorus, Flanger, Phaser, Compressor, and Limiter. Massive Sound Library & iCloud Sync • 1,100+ Premium Samples: An expansive built-in soundbank featuring heavy basses, lush synth pads, sharp leads, drum kits, acoustic guitars, and orchestral strings. • Smart Presets: Create unlimited custom patches. Your library is safely backed up with automatic, silent background iCloud Drive synchronization across all your Apple devices. Pro Recording & Export • Lossless Audio & MIDI: Record your live sessions directly within the app and export high-fidelity FLAC, WAV, AIFF, CAF, or M4A audio files, as well as full MIDI sequences. • AudioShare Integration: Instantly route your bounces to your favorite audio editors. • Background Audio: Keep your sequences running and your MIDI controllers active even while switching between apps. Designed for modern producers, beat makers, live performers, and synth enthusiasts, iDousyn brings desktop-class virtual instruments right to your fingertips.

Screenshots

iDousyn4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 6 level
iSequence HD versus iDousyn: the parameters behind the verdict, then further details
ParameteriSequence HDiDousyn
PriceFree — better$5.99
Rating4.2 (33 ratings)4.2 (161 ratings) — better
Positive reviews76.6% of reviews — better34.1% of reviews
Number of ratings33161 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPadiPhone, iPad — better
Requires iOS15.6 — better26.0
Further details — not scored
Size156 MB1.2 GB
Age rating4+4+
DeveloperBeepStreetJorge Lozada

Customer experience

iSequence HD

All ratings32 ratings
Positive78.1%
Neutral0.0%
Negative21.9%
Written reviews222 reviews
Positive76.6%
Neutral9.0%
Negative14.4%

iDousyn

All ratings159 ratings
Positive78.6%
Neutral2.5%
Negative18.9%
Written reviews44 reviews
Positive34.1%
Neutral6.8%
Negative59.1%

User reviews

iSequence HD

From 33 App Store ratings

What we love

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

Room to improve

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

iDousyn

From 161 App Store ratings

What we love

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

Room to improve

  • 🐛 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

Bugs and requests

iSequence HD

Reported bugs

4 issues
  • 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

6 requests
  • 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
Show 1 more
  • Ability to save and load full projects

iDousyn

Reported bugs

15 issues
  • App crashes immediately
  • Full version displays full-page ads
  • Ads appear on the front page
  • New update has ads
  • Implemented trackers
Show 10 more
  • iDousyn Lite works, this one does not
  • App does not open
  • MIDI input timing issues
  • Sound crash sometimes
  • Long delay between external MIDI and sound
  • Sluggish keyboard
  • Sluggish interface
  • Glide is always on
  • Scrolling menu is hard to use
  • Sliders on scrolling menu

Requested features

10 requests
  • Adaptive Crasher (AUV3, Adaptive Cubasis and Zenbeats)
  • AUV3 support
  • Audiobus compatibility
  • MIDI IN for better keyboard control
  • Background audio option
Show 5 more
  • Reset button
  • Fix sound crash
  • Improve interface contrast
  • Make panel brighter
  • Allow turning off glide

In-app purchases

8 purchases

iSequence HD

One-time8
  • Funny farm bank$1.99
  • Chiptunes bank$1.99
  • Acoustic bank$2.99
Show 5 more
  • Electro/house bank$2.99
  • Trance waves$2.99
  • Loops vol.1$2.99
  • Loops vol.2$2.99
  • Beat elements bank$2.99
1 purchases

iDousyn

One-time1
  • Unlock ProFree

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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