AUFX vs Xequence 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AUFX
This app offers a versatile stereo dynamics processor with advanced features like a noise gate, compressor/expander, and limiter. It allows for a wide range of audio manipulation, from subtle adjustments to extreme effects, with external side-chain capabilities and high-quality DSP.
- Stereo dynamics processor
- Noise gate
- Compressor/expander
- External side-chain input
- Lookahead limiter
- High quality 32-bit DSP
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A highly tweakable stereo dynamics processor with noise gate, compressor/expander with external side-chain input, and limiter/clipper. From subtle compression, extreme pumping, to maximum loudness! This app is part of the AUFX series, a collection of simple and powerful audio effect apps. • High quality 32-bit DSP engine. • Compressor/expander with optional lookahead buffer. • Allows negative ratios for pumping/cancellation effects. • Hard or soft knee with adjustable radius. • Built-in side-chain low/high cut filters with monitor toggle. • External side-chain input through Inter-App Audio or Audiobus. • Built-in noise gate. • Brick-wall lookahead limiter. • Hard/soft clipper. • Supports "parallell compression". • RMS/Peak envelope followers with attack, release and hold time. • Switchable between Linear and Logarithmic mode. • Automatic makeup gain. • Stereo link on/off. • Process hardware input/output, or other apps through Inter-App Audio or Audiobus (input/filter/output slots supported). • Save, load and share user presets. • Supports Audiobus 2 state saving. • Comes with several bundled presets. • Fully MIDI controllable, including Virtual MIDI. • Background Audio. • Record the result directly in app. • Email recordings or export to AudioShare audio document manager app. • Access user presets and recordings through iTunes File Sharing.
Xequence 2
A powerful MIDI sequencer, editor, and controller for digital music production on iPhone and iPad. It offers a desktop-class editing experience, robust import/export, and advanced features like MPE support and Ableton Link.
- MIDI sequencer, editor, arranger, and controller
- Desktop-class editing experience
- Robust MIDI file import/export
- MPE support with per-note editing
- Scale support in editors and keyboard
- Ableton Link and Audiobus 3 integration
- Advanced clip-based arranger
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This app is targeted at digital music production enthusiasts & professionals. Xequence is a comprehensive, fast & reliable MIDI sequencer, editor, arranger & controller for iPhone & iPad. Providing a desktop-class editing experience, it is the perfect centerpiece for a hardware studio, or for apps like AUM & Audiobus 3 to create a modular mobile music production environment. HIGHLIGHTS: - Efficient & fast User Interface for an amazing editing workflow - Robust MIDI File Import & Export (notes, controllers, program changes, etc.) - Extensive support for MPE (In-App Purchase) with per-note expression data editing - Support for scales everywhere (keyboard, pianoroll, etc.) - Over 70 included scales in 10 categories - MIDI Time Stretching in all editors - Best-in-class MIDI timing and clock output - Full Ableton Link 3 support - Full Audiobus 3 support - MIDI In & Thru with re-channelization & re-routing - MIDI Sync Master (Clock/Start/Stop/Continue/SPP) to sync other DAWs & sequencers to Xequence, e.g. to use audio tracks, or external drum machines. Several options for compatibility ARRANGER: - Unlimited Clips - Unlimited Tracks - Unlimited Sub Tracks per Track - 64 Undo/Redo steps - Flexible grid - Per-track non-destructive Swing & MIDI Delay - Linked Clips / Clones (editing the original changes all copies) - Powerful clip-based, per-track independent looping - Program changes - Selection tools: Marquee/Rectangle, Same Track, Same Instrument, Linked Clips, Invert, etc. - Editing tools: Create Copy, Create Linked Copy, Unlink, Split, Join, Convert loops to clips, etc. - Global clipboard, even between projects - Movement/Trimming Handles at screen edges for efficient editing PIANOROLL EDITOR: - 256 Undo/Redo steps - Scale-awareness ("folding") - Relative or absolute grid (move by grid increments or snap to nearest grid lines) - Live MIDI previews of all edits - Selection tools: Box, Same Note, Same Key, Same Beat Position, Invert, etc. - Editing tools: Copy, Legato, Quantize, Quantize Ends, Octave +/-, Flip H/V (mirror), Fill clip with selection, etc. - Smart Draw mode: Touch to create, touch again to delete, drag up/down to transpose, drag left/right to change length - Global clipboard, even between projects - Configurable "ghost" overlays - Note velocities quickly adjustable via a handle, or editable like controllers, see below: CONTROLLER EDITOR: - 256 Undo/Redo steps - Selection tools: Box, Same Beat Position, Invert - Selection modes: Add & Replace - Editing tools: Copy, Reduce, Quantize, Compress/Expand, Flip H/V (mirror), Ramp (various curves), Fill clip with selection - Smart Draw mode - Note Velocities can be shown as controllers and edited with the same tools - Configurable vertical grid & value entry KEYBOARD / CONTROLLER: - Scale-aware, very playable single or dual keyboards - Glide support - Adjustable key width - Velocity emulation (via vertical position) - Drum maps and pads, fully editable, 40+ factory maps - Touch ribbons for live control - Controllers can be moved by sliding (ribbon), device rotation (up to three axes at once), like a button (sustain pedal, "trance gates"), or by touching the keys at different vertical positions. All highly configurable. INSTRUMENTS: - Unlimited Instruments (MIDI configurations for devices / apps) - Up to 150controller slots per Instrument - Optional support for (N)RPNs (In-App Purchase) - Loading & Saving of instruments for re-use in other projects, 40+ factory presets included (In-App Purchase) - Compatible with virtually ALL apps and class-compliant MIDI interfaces VARIOUS: - Audio or MIDI Metronome - Note chasing (notes play even when playback starts in the middle) - Controller chasing - Perfect song looping, no dropouts/jitter at loop points - Supports any time signature/BPM (fixed per song) - Includes PolyHymnia, an advanced Generative Music module - Light and Dark themes Please report any issues via our website, we provide quick and comprehensive support!
Screenshots
Verdict
The clearest difference is price: AUFX at $4.99 against Xequence 2's $19.99. AUFX also leads on in-app purchases (none vs 1) and iOS requirement (9.0 vs 14.2). Xequence 2's advantage is update cadence (every 2 weeks vs every 5 months) and rating (4.6 vs 4.3). On ratings volume, ads and device support 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
AUFX costs $4.99 and Xequence 2 $19.99 up front. Xequence 2 sells 1 one-off in-app purchase. AUFX asks for nothing beyond the download.
Xequence 2 holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 32 and 65 respectively. Written reviews point the same way: 66% of AUFX's written reviews are positive against 78% of Xequence 2's.
AUFX ships an update every 5 months, Xequence 2 every 2 weeks. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.
| Parameter | AUFX | Xequence 2 |
|---|---|---|
| Price | $4.99 — better | $19.99 |
| Rating | 4.3 (32 ratings) | 4.6 (65 ratings) — better |
| Positive reviews | 65.8% of reviews | 77.8% of reviews — better |
| Number of ratings | 32 | 65 — better |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 14.2 |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Kymatica AB | Alexander Ewering |
Customer experience
AUFX
Xequence 2
Bugs and requests
AUFX
Not enough reviews yet to summarise bugs or requests.
Xequence 2
Reported bugs
4 issues- No sound for some users
- Auto-save failed, lost work
- Exported MIDI out of sync
- Controller values not resetting properly
Requested features
5 requests- AUV3 support
- Tempo and time signature changes mid-song
- MIDI control for transport (start/stop)
- SysEx support
- Always visible Metronome button
In-app purchases
AUFX
No in-app purchases
Xequence 2
- Enhanced Pack$4.99









