Comparison

Stellr vs spaceVerb

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

Head to head
About

Stellr

Create deep, ethereal ambiance with a pitch-shifter, dual delays, and reverb. Explore sonic possibilities with 15 presets, randomization, and parameter automation. Enhance your music with a new dimension of sound.

Highlights
  • Pitch shifter with fine-tuning or semitone snap
  • Two independent delays for complex feedback
  • LFO modulation and various reverb types
  • Pre-gain and dry/wet level control
  • Audio Unit Extension, Audiobus, Inter-App Audio support
  • 15 built-in presets with import/export
  • Realtime frequency spectrum visualizer
Features
Read full description

Stellr is a pitch-shifter/delay/reverb sound processor aimed to recreate the classic shimmer effect. It makes deep ethereal ambiance on top of your sound, providing you with a wide variety of sonic possibilities. Add a new dimension to your music. The effect features 20 ready to use presets which can be shared between devices as well as randomize button for endless variations. When loaded as Audio Unit effect, all parameters can be automated via host app. Stellr main features: – Pitch shifter which can be fine-tuned or snapped to semitone – Two separate delays for creating a complex feedback effect – LFO modulation and different types of reverb – Set pre-gain and dry/wet levels – Audio Unit Extension support – 20 built-in presets – Low-pass and High-pass filters – Ability to save and randomize parameters – Import and export of user presets – Realtime frequency spectrum visualizer

About

spaceVerb

This audio effect module offers a versatile stereo reverb with 14 distinct spaces, from conventional rooms and halls to unique environments like caves and mausoleums. It provides in-depth controls for shaping the reverb, including EQ and master settings, and supports cross-platform preset sharing. It functions as a standalone app or an AUv3 plugin for various host applications.

Highlights
  • 14 distinct reverb spaces
  • In-depth sound sculpting controls
  • 3-band EQ section
  • Preset manager with save/share
  • AUv3 plugin compatibility
  • Standalone app functionality
Features
Read full description

spaceVerb multi-mode stereo reverb module. spaceVerb will both seamlessly blend your projects together, offering a creative unique touch to your audio. spaceVerb offers a versatile selection of 14 different spaces, each with their own unique sonic characteristic, providing you with a broad spectrum of sounds to enhance your projects. Whether you’re after conventional reverb sounds like rooms and halls or unique spaces like a cave or mausoleum. Unlock the full sonic potential of each space with in-depth controls; Mix, Dampening, Ducking, Left/Right Repeats and Decay. Their three band EQ Section (Low, Mid, and High), and master controls (Master Volume & Pan). 30 Factory Presets included with the ability to save and share cross platform presets. All parameters including the current screen in view offer automation for full control in your sessions. Includes stand alone and AUv3 plug-in instance for use in all of your favorite host applications like Cubasis, AUM, Garageband, and many more! Compatible for both iPhone and iPad. Features - 14 Plate Reverb Models; ranging from early/vintage styles to creatively inspiring and modern/futuristic - Over 16 In-depth controls to sculpt your reverbs, including: Pre Delay, Decay, Damping, Repeat Speed, Ducking, and more! - Built-in 3-band EQ section for additional sonic character control - Preset Manager with Save, Save As, Rename, and Delete functionality - Over 20 Factory presets, including both Send and Insert styles - Cross-platform support: presets can be shared between iOS and macOS & Windows - AUv3 compatible with your favorite AU Host apps such as Garageband, AUM, Cubasis, and more! Spaces: Booth - Step into a professional-grade, intimate studio ambiance, meticulously designed for enhancing vocal clarity or introducing a subtle sense of space to your sound. Guitar Room - Immerse yourself in a professionally crafted, close-quarters atmosphere, tailored to improve vocal clarity or infuse a subtle sense of space into your sound. Drum Room - Experience the precision of a compact, intimate studio setting, perfect for refining vocal clarity or introducing a subtle sense of space into your sound. Live Room - Drench your audio in the expansive atmosphere of a well-appointed studio space, tailored for accommodating intricate soundscapes and elevating your compositions. Hall - Reveal an acoustically perfected space, ideal for professional piano performances and sound experimentation. Cathedral - Craft divine soundscapes suited for professional choral arrangements and ethereal compositions in a studio setting. Mausoleum - A solemn and spacious mausoleum. Its marble-clad surroundings create a subtle, haunting ambiance. Stairwell - Discover a less conventional space, where a multitude of reflections comes together to create a unique ambiance, gently guiding your sound to fresh and understated places. Cave - Immerse your signal in the enigmatic, atmospheric character of a massive cave-like space, adding a unique depth to your projects. Garage - Send our audio to a close-quarters space with highly reflective surfaces, offering a very distinct sound.

Screenshots

Stellr2 screens
spaceVerb4 screens

Verdict

The call

The clearest difference is rating: spaceVerb at 4.2 against Stellr's 3.4. spaceVerb also leads on update cadence (every 8 months vs every 40 months). On price, ratings volume, ads and in-app purchases 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

Stellr costs $4.99 and spaceVerb $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

spaceVerb holds the better App Store score, 4.2 against 3.4. Both are backed by a comparable volume of ratings — 9 and 5 respectively.

UpkeepUpdate frequency

Stellr ships an update every 40 months, spaceVerb every 8 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Stellr versus spaceVerb: the parameters behind the verdict, then further details
ParameterStellrspaceVerb
Price$4.99$4.99
Rating3.4 (9 ratings)4.2 (5 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings9 — better5
Update frequencyEvery 40 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size26 MB74 MB
Age rating4+4+
DeveloperBACKPULLVER SOFTWARE LTD OODOSC Audio

Customer experience

Stellr

All ratings9 ratings
Positive55.6%
Neutral11.1%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

spaceVerb

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stellr

No in-app purchases

None

spaceVerb

No in-app purchases

Questions

Is Stellr free?
Stellr costs $4.99, with no in-app purchases.
Is spaceVerb free?
spaceVerb costs $4.99, with no in-app purchases.
Which has better reviews, Stellr or spaceVerb?
spaceVerb is rated higher. Stellr averages 3.4 out of 5 from 9 ratings, while spaceVerb averages 4.2 from 5 ratings.
Do Stellr or spaceVerb have ads?
Neither Stellr nor spaceVerb shows ads.
Which is updated more often, Stellr or spaceVerb?
Stellr ships an update every 40 months, and spaceVerb every 8 months. Most recently, Stellr was updated on October 19, 2026 and spaceVerb on October 24, 2026.

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