PhaseThree vs AltiSpace 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PhaseThree
This app meticulously recreates the sound and quirks of a vintage dual phaser unit. It offers both original six-stage and modern twelve-stage phasing options, with advanced control over modulation sources and cross-platform preset management.
- Vintage dual phaser emulation
- Six-stage and twelve-stage phasing options
- Vactrol response modeling
- Expression pedal parameter control
- Cross-platform preset manager
- Vector-based resizable UI
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PhaseThree is a detailed model of the MuTron Bi-Phase, with all the lovely sound of that unit (along with its foibles and quirks.) It is worth noting that, due to aging factors, no two Bi-Phase hardware units sound alike; we found the best and most tuneful one we could lay our hands on, bought it for a faintly ridiculous price, and took it apart to see what made it tick. Like you do. The result is a painstaking digital copy of the original unit, down to the unique sweep of its LFOs. With the latest version, we have departed from the original and added 12-stage phasors in addition to the six-stage versions found in the hardware units. (We feel that 12-stage phasors have a more modern sound that people expect in a current phasor, and that the six-stage versions in the original were somewhat lacking to the modern palette.) Features » Standalone (with Inter-App Audio) and AudioUnit V3 versions included. » Perfect model of the original Bi-Phase, down to the response of the vactrols. » The unobtanium Bi-Phase expression pedal is modeled as a separate parameter, for control by your favorite modulation source. » 12-stage phasor option for each channel, in addition to the original 6-stage phasors. » XML-based cross-platform preset manager, with copy and paste. (You can even move presets between the iOS version and the desktop version with Handoff.) » Entirely vector-based resizable high-resolution user interface.
AltiSpace 2
This app offers advanced convolution reverb with realistic acoustic simulations and famous hardware device presets. It allows users to import their own impulse responses and provides extensive controls for EQ, gating, modulation, and more to shape unique sounds.
- Import custom impulse response files
- Library of famous hardware reverb presets
- Advanced EQ, gate, and ducking controls
- Modulation and pitch shifting effects
- MIDI controller support
- Stereo and mono input processing
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AltiSpace is a convolution reverb app with advanced controls that provides realistic sounding natural acoustic space or the most famous reverb devices for any track or mix. A convolution reverb takes a captured sample (called an impulse response) from a real-world space or hardware and uses this to digitally simulate the reverberation of that space or device down to the last detail and nuance. Because it is sampled, not synthesized, convolution reverb is known for its stunning realism, and it is widely considered to be the best type of reverb. However, unlike the more common algorithmic reverbs, convolution reverbs usually does not have much control over the reverberation process. But AltiSpace, in addition to the ability to load your own impulse response files and a built-in library of real reverb device presets, has advanced settings such as EQ, gate, ducking, modulation and more. You can change the original impulse response parameters to something completely new and then save it as a new preset. This app has an easy-to-use user interface, where all the main controls are located on the single screen, and it is ready to use right out of the box, even without additional settings. And at the same time, you can easily change the parameters of the impulse responses from the built-in library to create your own sound. App features: Ability to import your own impulse response files. A large built-in library of presets from the most famous hardware reverbs. Convenient preset manager with the ability to group and search presets. Presets can be marked as favorites for display in the favorites group. Supports MIDI controllers (also Bluetooth) with learn or manually assign mode. Reverb can work with a stereo or mono input and convert it to stereo. Add dynamic noise before reverb for a more natural sound. The gate allows you to turn on the reverb when the threshold is exceeded. The ducking allows you to turn off the reverb when the threshold is exceeded. Sets the minimum reverb level for Gate and Ducking modes. Equalizer with high and low cut filters in chain before or after reverb. Changing the time (length) of the current impulse response. Possibility to set a fade out point for a smooth end of the impulse response. Sets the pre-delay time of the signal before reverb. Experimental feature to change the pitch of the impulse response. Amplifying early or late reflections. Adjusts the stereo image before the reverb. Haas effect for adding stereo space to a mono signal. Sets the depth and frequency of modulation the signal before reverb. Mixing dry / wet signal and adjusting the output level. Four-channel mode for better stereo ambience. Input and output level meters. Indicators of possible input clipping for standalone. Prevents any output clipping for standalone. Built-in full description of all controls. Demo: https://www.youtube.com/watch?v=WBHxgjkGCoU https://www.youtube.com/watch?v=GLNi9wHaGew https://www.youtube.com/watch?v=A3RPopor9gI AltiSpace is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). AltiSpace works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, and supports Audiobus. On MacOS, AltiSpace can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. AltiSpace has a built-in detailed description of all parameters also available as PDF file on the application site. You can find more information on AltiSpace and other creative audio apps at: https://motion-soundscape.blogspot.com
Screenshots
Verdict
PhaseThree and AltiSpace 2 both sit at 4.6 stars, but that hides the real split: 100% of PhaseThree's written reviews are positive against 78% of AltiSpace 2's. PhaseThree also leads on price ($4.99 vs $7.99) and iOS requirement (9.3 vs 13.4). AltiSpace 2's advantage is chart position (#197 vs unranked). On rating, ratings volume, 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
PhaseThree costs $4.99 and AltiSpace 2 $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for PhaseThree against 4.7 for AltiSpace 2. Both are backed by a comparable volume of ratings — 14 and 29 respectively. Written reviews are what separate them: 100% of PhaseThree's written reviews are positive against 78% of AltiSpace 2's.
| Parameter | PhaseThree | AltiSpace 2 |
|---|---|---|
| Price | $4.99 — better | $7.99 |
| Rating | 4.6 (14 ratings) | 4.7 (29 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 77.8% of reviews |
| Number of ratings | 14 | 29 — better |
| Update frequency | — | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #197 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 13.4 |
| Further details — not scored | ||
| Size | 9 MB | 227 MB |
| Age rating | 4+ | 4+ |
| Developer | Audio Damage, Inc. | Igor Vasiliev |
Customer experience
PhaseThree
AltiSpace 2
In-app purchases
PhaseThree
No in-app purchases
AltiSpace 2
No in-app purchases









