PhaseX covers three classic phaser modes in a 6.7MB footprint. Phase 90 delivers the sweeping, dramatic movement useful for electric pianos and leads. Phase 45 is more subtle and less dominant — well suited to adding organic motion without the effect overtaking the core instrument tone. Uni-Vibe brings a rotary-like throb, gentler and more musical, closely associated with classic rock and funk applications. All three modes are accessible via a single toggle, and the controls stay minimal enough to dial in a useful sound within a few seconds.
The standout technical feature is the stereo phasing and vibrato mode. Standard chorus and flanger effects introduce transient smearing because they rely on short delays — that smearing blurs the attack of drums, basses, and plucked instruments. PhaseX’s stereo vibrato produces wide stereo imaging and pitch movement without touching the attack transient. The result is stereo width you can apply to punchy sources without losing the initial hit. The app runs on iOS 17.6+ and iPadOS 17.6+, works offline, and collects no user data.
Key features:
- Phase 90 Mode: Classic sweeping phaser movement
- Phase 45 Mode: Subtle phasing with less effect dominance
- Uni-Vibe Mode: Rotary-style vintage throb
- Stereo Phasing/Vibrato: Wide stereo imaging without transient smearing
- 6.7MB footprint, offline-first, no data collection
- Requires iOS 17.6 / iPadOS 17.6 or later
App price: $5.99
