Comparison

rrarrow vs AltiSpace 2

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

Head to head
About

rrarrow

Create experimental audio effects with extended feedback capabilities. This modular noise machine offers a simplified interface for fast assembly and flexible connectivity, allowing you to control processing parameters with the audio signal itself.

Highlights
  • Modular audio effect processing
  • Extended feedback capabilities
  • 20 audio processing blocks
  • Built-in audio recorder
  • MIDI controller support
  • Audiobus and Inter-App Audio support
  • Background audio playback
Features
Read full description

rrarrow is the experimental noise machine / modular audio effect for the iOS featuring extended feedback capabilities. Key features: - Simplicity. The interface is simplified for faster assembly and more flexible connectivity — you can assemble your effect very fast and control all the processing parameters with the audio signal! - Feedback capabilities. You can add feedbacks to the audio chain to get some chaotic noise sounds . - 20 blocks for audio processing: - Sine generator. Basic oscillator with sine waveform - Saw and square oscillators - Signal multiplier - Delay - Frequency shifter - Envelope follower - “Lorenz attractor” - Quantizer - Sample-and-hold - Reverb - Special Lowpass filter - Clipper - Nonlinear shaper (for self-oscillating circuit) - two special waveshaping modules with “fold” and “wrap” distortion blocks that work with audiofiles: - lookup table. Loads up to 10 seconds of audiofile to be used as nonlinear transfer function - Players with/without interpolation and speed control - "scrub" block for semi-random granular file playback - Built-in audio recorder. Share the audio file to other applications or AudioShare. - MIDI support! Assign MIDI controllers to all faders. Supports network midi and has a virtual MIDI in. - Audiobus support. Now you can stream live audio directly to other Audiobus-compatible apps! See http://audiob.us for more information. Works as input and filter. - Audiobus state saving support - Inter-App Audio support - Background audio support: enabled when connected to Audiobus and user switchable otherwise. The 'background audio" switch is located in app's "settings" page iPad2/iPhone4S or newer is recommended for complex presets this app is optimized for iPad and iPhone 5 To get started please watch the tutorial videos on the website and read the user guide inside the app

About

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.

Highlights
  • 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
Features
Read 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

rrarrow3 screens
AltiSpace 24 screens

Verdict

The call

The clearest difference is price: rrarrow at $3.99 against AltiSpace 2's $7.99. AltiSpace 2's advantage is iOS requirement (13.4 vs 15.6). On rating, review sentiment, ratings volume and update cadence 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

rrarrow costs $3.99 and AltiSpace 2 $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for rrarrow against 4.7 for AltiSpace 2. Both are backed by a comparable volume of ratings — 19 and 29 respectively. Written reviews are what separate them: 81% of rrarrow's written reviews are positive against 78% of AltiSpace 2's.

UpkeepUpdate frequency

rrarrow ships an update every 4 weeks, AltiSpace 2 monthly. The most recent releases landed on September 28, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
rrarrow versus AltiSpace 2: the parameters behind the verdict, then further details
ParameterrrarrowAltiSpace 2
Price$3.99 — better$7.99
Rating4.6 (19 ratings)4.7 (29 ratings) — better
Positive reviews81.3% of reviews — better77.8% of reviews
Number of ratings1929 — better
Update frequencyEvery 4 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.613.4 — better
Further details — not scored
Size29 MB227 MB
Age rating4+4+
DeveloperAlexey NadzharovIgor Vasiliev

Customer experience

rrarrow

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews16 reviews
Positive81.3%
Neutral6.3%
Negative12.5%

AltiSpace 2

All ratings29 ratings
Positive93.1%
Neutral3.4%
Negative3.4%
Written reviews18 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

In-app purchases

None

rrarrow

No in-app purchases

None

AltiSpace 2

No in-app purchases

Questions

Is rrarrow free?
rrarrow costs $3.99, with no in-app purchases.
Is AltiSpace 2 free?
AltiSpace 2 costs $7.99, with no in-app purchases.
Which has better reviews, rrarrow or AltiSpace 2?
AltiSpace 2 is rated higher. rrarrow averages 4.6 out of 5 from 19 ratings, while AltiSpace 2 averages 4.7 from 29 ratings.
Do rrarrow or AltiSpace 2 have ads?
Neither rrarrow nor AltiSpace 2 shows ads.
Which is updated more often, rrarrow or AltiSpace 2?
rrarrow ships an update every 4 weeks, and AltiSpace 2 monthly. Most recently, rrarrow was updated on September 28, 2026 and AltiSpace 2 on October 13, 2026.

Other comparisons