Stellarvox vs jAmp Doubler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- Stereo widening effect
- Adjustable delay time (0-50 microseconds)
- MIDI control
- AUv3 plugin format
- Enhances mono audio
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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
Verdict
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
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.
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.
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.
| Parameter | Stellarvox | jAmp Doubler |
|---|---|---|
| Price | $11.99 | Free — better |
| Rating | 5.0 (11 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 — better | 4 |
| Update frequency | Every 5 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Igor Vasiliev | Jan Maes |
Customer experience
Stellarvox
jAmp Doubler
In-app purchases
Stellarvox
No in-app purchases
jAmp Doubler
No in-app purchases









