Comparison

Stellarvox vs jAmp Doubler

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

Head to head
About

Stellarvox

Design immersive ambient soundscapes with a hybrid reverb and artificial space designer. Create lush textures, deep spaces, and whispering backgrounds for electronic, experimental, and sound design projects. Offers intuitive controls and inspiring presets for quick, high-quality results.

Highlights
  • Hybrid reverb with artificial space designer
  • Algorithmic reflections tail processing
  • Dynamic timbre changes over time
  • Geometry and dimension control
  • Factory presets and random feature
  • MIDI learn support
  • Standalone and AUv3 module
Features
Read full description

Hybrid reverb with an artificial space designer, combining it with algorithmic reflections tail processing, is ideal to creating immersive ambience of deep spaces, lush atmospheric textures or stunning whispering backgrounds in your ambient, electronic, experimental and sound design projects. Unlike traditional algorithmic reverbs, Stellarvox constructs a complex model of a vast resonant sound spaces with choice of geometry, dimensions and tonal structure of the space, along with a unique feature that dynamically change the timbre of reflections over the reverberation time. The second algorithmic reverb allows you to prolong and blur reflections, adding extra dimensions to the sound space. Easy-to-use controls on a single screen, along with optimally designed parameters that always give great results, make insignificant the peculiarity of that kind of reverbs, when the model creates with a little delay after changing it. Factory presets and the random feature will give you a starting point of inspiration and allow you to get a quick result where you need just to slightly tweak the parameters to align with your idea. This application is great for ambient projects, it can create mesmerizing atmosphere from single infrequent sounds of various instruments, or giving a beautiful and deep backgrounds to sharp sequences in electronics, as well as for any experimental projects that require unusual, deep and rich sound ambience. Stellarvox 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). Stellarvox works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, with supports Audiobus host app. On MacOS, Stellarvox can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. Stellarvox has a built-in detailed description of all parameters also available as PDF file on the application site. Sound demo: https://www.youtube.com/watch?v=TEtZfvLtJy8 https://www.youtube.com/watch?v=FqCYa1tp2Qw You can find more information on Stellarvox and other audio apps at: https://motion-soundscape.blogspot.com

About

jAmp Doubler

This audio plugin creates a stereo effect by introducing a subtle delay to one audio channel. It offers precise control over the delay time and can be managed via MIDI. Ideal for enhancing mono audio sources with a wider soundstage.

Highlights
  • Stereo widening effect
  • Adjustable delay time (0-50 microseconds)
  • MIDI control
  • AUv3 plugin format
  • Enhances mono audio
Features
Read full description

Doubler is an AUv3 plugin that adds stereo effect by delaying the right channel wrt the left channel. The delay is controlled by the central knob and goes from 0 microseconds to 50 microseconds. It is possible to control this plugin via MIDI.

Screenshots

Stellarvox3 screens
jAmp Doubler1 screens

Verdict

The call

The clearest difference is price: jAmp Doubler at Free against Stellarvox's $11.99. jAmp Doubler also leads on update cadence (every 9 days vs every 5 months). On rating, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

jAmp Doubler is free to download; Stellarvox costs $11.99 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 — 5.0 for Stellarvox against 5.0 for jAmp Doubler. Both are backed by a comparable volume of ratings — 11 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Stellarvox ships an update every 5 months, jAmp Doubler every 9 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Stellarvox versus jAmp Doubler: the parameters behind the verdict, then further details
ParameterStellarvoxjAmp Doubler
Price$11.99Free — better
Rating5.0 (11 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11 — better4
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.014.0 — better
Further details — not scored
Size4 MB6 MB
Age rating4+4+
DeveloperIgor VasilievJan Maes

Customer experience

Stellarvox

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

jAmp Doubler

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stellarvox

No in-app purchases

None

jAmp Doubler

No in-app purchases

Questions

Is Stellarvox free?
Stellarvox costs $11.99, with no in-app purchases.
Is jAmp Doubler free?
jAmp Doubler is free to download, with no in-app purchases.
Which has better reviews, Stellarvox or jAmp Doubler?
Stellarvox and jAmp Doubler are both rated 5.0 out of 5 on the App Store, from 11 and 4 ratings respectively.
Do Stellarvox or jAmp Doubler have ads?
Neither Stellarvox nor jAmp Doubler shows ads.
Which is updated more often, Stellarvox or jAmp Doubler?
Stellarvox ships an update every 5 months, and jAmp Doubler every 9 days. Most recently, Stellarvox was updated on October 24, 2026 and jAmp Doubler on October 12, 2026.

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