apeFilter vs AltiSpace 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
apeFilter
This app offers advanced audio equalization with up to 36 peak filters and spectral grid compilers for precise sound sculpting. It supports various audio input methods and includes effects like reverb and delay.
- 36 Peak Filters
- Spectral Grid Compilers
- AudioUnit V3 & Inter-App Audio Support
- Built-in Stereo Sampler
- ClassicVerb and Delay FX
- MIDI Control
Read full descriptionHide full description
apeFilter is a sophisticated Equaliser, the DSP is based on the Biquad/Cascade filters, very fast! The graphical interaction provides a great tool to design an extremely precise and smooth frequency response by directly manipulating up to 36 Peaks Filters. The Spectral Grid compilers increase the complexity and coherence between the filters bandwidth space. You can create your pitch space by the way of four different criteria of construction by determining a pitches grid: Fibonacci, Harmonic, Geometric and Scalar. Use apeFilter for sculpt your sound through the embedded sampler or LIve from Audiobus or Inter-Audio-App Input. Among the FX chain, an amazing ClassicVerb is available. + AudioUnit V3 (FX) + Inter-App Audio (FX) + Audiobus (Full) + Ableton Link + Audio Interface support + Microphone input + 72 Peak Filters for Spectral Grid Compilers + 4 Spectral Grid Compilers: Fibonacci, Harmonic, Geometric and Scalar + 6 Common Filters: Lowpass, Hipass, Bandpass, Notch, Lowshelf, Hishelf + MIDI Note On/Off messages, for playing Filters Frequency and Filters Peaks Gain + Audiobus and Inter-App Audio support (sender and FX) + Built In Stereo Sampler with varispeed + Control Manager LFO for Parameters + Midibus, Virtual Midi and Network: 14 bit NRPN controllers + File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy + Snapshot Presets Morphing Pad + Post Fx Chain: Stereo Delay, Amazing ClassicVerb and Dynamic compressor/expander
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
Read full descriptionHide full description
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
apeFilter and AltiSpace 2 both sit at 4.8 stars, but that hides the real split: 100% of apeFilter's written reviews are positive against 78% of AltiSpace 2's. apeFilter also leads on chart position (#184 vs unranked). AltiSpace 2's advantage is update cadence (monthly vs every 2 months) and iOS requirement (13.4 vs 17.0). On price, rating, ratings volume and ads 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
apeFilter costs $7.99 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 — 4.8 for apeFilter against 4.7 for AltiSpace 2. Both are backed by a comparable volume of ratings — 33 and 30 respectively. Written reviews are what separate them: 100% of apeFilter's written reviews are positive against 78% of AltiSpace 2's.
apeFilter ships an update every 2 months, AltiSpace 2 monthly. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.
| Parameter | apeFilter | AltiSpace 2 |
|---|---|---|
| Price | $7.99 | $7.99 |
| Rating | 4.8 (33 ratings) — better | 4.7 (30 ratings) |
| Positive reviews | 100.0% of reviews — better | 77.8% of reviews |
| Number of ratings | 33 — better | 30 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #184 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 18 MB | 227 MB |
| Age rating | 4+ | 4+ |
| Developer | apeSoft | Igor Vasiliev |
Customer experience
apeFilter
AltiSpace 2
In-app purchases
apeFilter
No in-app purchases
AltiSpace 2
No in-app purchases









