Comparison

nils 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

nils

This real-time audio effect machine offers bitcrush, delay, and gain for distortion. It functions as a sampler and looper, allowing for lo-fi sound manipulation for both beginners and professionals. Supports Audiobus and various audio inputs.

Highlights
  • Real-time audio effects
  • Bitcrush, delay, gain
  • Sampler functionality
  • Minimalistic looper
  • Audiobus support
  • Export audio
Features
Read full description

..:: || NEW || AudioBus Support || ::.. Real time bitcrush, sampler and looper. Nils is a real time sound effect machine with a minimalistic looper. It comes with bitcrush, delay and gain for distortion. As input you can use the internal microphone, your earpods or accessories like iRig. Can also be used as a sampler, by holding the delay buffer and changing its phase. Lo-fi looping for both beginners and professionals. +++ Audiobus (input/effects/output). +++ Real time. +++ Bitchrush. +++ Sample rate (1 Hz - 44100 Hz). +++ Delay. +++ Hold delay buffer. +++ Play delay buffer. +++ Gain (goes up to 11). +++ Limiter. +++ Tape looper. +++ Export (email, soundcloud, MAPI audio copy).

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
Currently charting
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

nils4 screens
AltiSpace 24 screens

Verdict

The call

The clearest difference is price: nils at $1.99 against AltiSpace 2's $7.99. nils also leads on iOS requirement (8.0 vs 13.4). AltiSpace 2's advantage is chart position (#187 vs unranked). 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

nils costs $1.99 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 — 4.8 for nils against 4.7 for AltiSpace 2. Both are backed by a comparable volume of ratings — 13 and 29 respectively. Written reviews are what separate them: 72% of nils's written reviews are positive against 78% of AltiSpace 2's.

UpkeepUpdate frequency

nils ships an update every 5 weeks, AltiSpace 2 monthly. The most recent releases landed on September 25, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 8 level
nils versus AltiSpace 2: the parameters behind the verdict, then further details
ParameternilsAltiSpace 2
Price$1.99 — better$7.99
Rating4.8 (13 ratings) — better4.7 (29 ratings)
Positive reviews72.2% of reviews77.8% of reviews — better
Number of ratings1329 — better
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#187 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better13.4
Further details — not scored
Size8 MB227 MB
Age rating4+4+
DeveloperErik SigthIgor Vasiliev

Customer experience

nils

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews18 reviews
Positive72.2%
Neutral5.6%
Negative22.2%

AltiSpace 2

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

In-app purchases

None

nils

No in-app purchases

None

AltiSpace 2

No in-app purchases

Questions

Is nils free?
nils costs $1.99, with no in-app purchases.
Is AltiSpace 2 free?
AltiSpace 2 costs $7.99, with no in-app purchases.
Which has better reviews, nils or AltiSpace 2?
nils is rated higher. nils averages 4.8 out of 5 from 13 ratings, while AltiSpace 2 averages 4.7 from 29 ratings.
Do nils or AltiSpace 2 have ads?
Neither nils nor AltiSpace 2 shows ads.
Which is updated more often, nils or AltiSpace 2?
nils ships an update every 5 weeks, and AltiSpace 2 monthly. Most recently, nils was updated on September 25, 2026 and AltiSpace 2 on September 19, 2026.

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