Comparison

Stereo Delay vs TB Reverb

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

Head to head
About

Stereo Delay

This audio unit plugin creates natural-sounding stereo delays with unique panning that expands stereo width without sounding repetitive. It features filters and a mixing matrix for dynamic echo placement, ideal for adding depth to music.

Highlights
  • Unique stereo panning matrix
  • Natural, moving stereo echo
  • Low-cut and hi-cut filters
  • Feedback control
  • LFO controlled pan
  • Requires host app
Features
Read full description

Blue Mangoo Stereo Delay is designed to be the go-to app a for simple, musically tasteful delay effect. The most unique feature is the way it handles panning of delayed echoes in the stereo field. Most stereo delays set different delay times for the left and right channels, resulting in the famous ping-pong effect. The problem with the ping-pong stereo delay sound is that it's too extreme, and our ears quickly tire of hearing the same pattern of left-then-right delay repeated hundreds of times. This plugin does it differently. Instead of setting delay taps at different times panned hard left or right, it always keeps the same delay time setting for both the left and right channels, but it has a unique mixing matrix controlling the feedback between the left and right channels so that each time the echo repeats, it appears in a new place in the stereo field. This is different from a simple panning delay, because older echoes and newer ones can simultaneously appear at different positions in the stereo field. The result is a very natural stereo echo that expands the stereo width of the sound but doesn't sound repetitive or electronic. It's constantly moving and changing. The wet signal output has low-cut and hi-cut filters. The hi-cut filter tones down the harshness of the delay and makes it sound like natural echoes. The low-cut is especially useful for applying delay without making things sound muddy. At extreme settings the low cut can achieve a lo-fi telephone like delay sound. The signal flow diagram is as follows: Filters => LFO controlled pan => Stereo Delay Lines => Mixing matrix => Feedback to Delay Lines The dry signal (not shown above) bypasses the entire effect. The key difference between this and other delays is the mixing matrix, which is similar to the ones used in feedback delay network reverb effects to mix between multi-channel delays without changing the volume of the sound. It is the matrix (not the LFO) that creates the illusion that the signal has moved to a different location in the stereo field each time it repeats through the delays. *** THIS IS AN AUDIO UNIT ONLY EFFECT. IT REQUIRES A HOST APP SUCH AS AUM, Audiobus, GarageBand, OR Cubasis. IT DOES NOT RUN AS A STANDALONE APP. ***

About

TB Reverb

This professional audio plug-in offers studio-grade reverberation with extensive customization options. It features real-time processing, advanced modulation, and dynamic effects for creative sound design. Compatible with AUv3 hosts, it provides a flexible workflow for musicians and producers.

Highlights
  • Studio-grade reverberation with early reflections
  • Extensive parameter control (room size, width, density, etc.)
  • Integrated LFO for parameter modulation
  • Compression, ducking, and gating effects
  • Shimmer reverb module
  • Real-time spectrum analyzer and equalizer
  • Reverb freeze option
Read full description

ToneBoosters Reverb is a studio-quality, professional reverberation AUv3 plug-in with an unrivalled workflow, unlimited creative use and a gorgeous, functional user interface. With its close to a hundred adjustable parameters, the integrated LFO for parameter modulation, integrated compression and gating, and its shimmer reverb module it is by far the most flexible and configurable reverb on iOS. The ToneBoosters Reverb app captures the microphone input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Reverb will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Studio-grade reverberation including early reflections - The same professional sound as the acclaimed desktop version - Full control over room size, width, density, depth, mass - Integrated spectrum analyser showing direct and reverb simultaneously - Integrated equalizer to shape the reverberation character - Ability to modify reverberation time across frequency - Compression, ducking and gating for dynamic reverberation effects - Flexible, beat-synced LFO that can modulate almost everything! - Dual pitch-shift shimmer module for out-of-this-world reverberation - Reverb freeze option - Random parameter option to change the core reverb sound on the spot - Eco mode for lower CPU load on complex projects - Program manager with shared programs between stand-alone, IAA and AUv3 instances - Undo/redo, and A/B comparison - Color themes for the user interface - Max screen support in Garageband - Optimised for iPad and compatible with iPhone and iPod Touch Compatibility Please note that given the large flexibility and number of parameters that can be modified with this reverb, the use of an Apple pencil or stylus is highly recommended for smaller devices such as iPhone and iPod touch. What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

Screenshots

Stereo Delay4 screens
TB Reverb4 screens

Verdict

The call

The clearest difference is price: Stereo Delay at $2.99 against TB Reverb's $8.99. Stereo Delay also leads on iOS requirement (10.3 vs 13.0). TB Reverb's advantage is review sentiment (94% vs 75%) and update cadence (every 2 months vs every 6 months). On rating, ads, in-app purchases and monetization model 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

Stereo Delay costs $2.99 and TB Reverb $8.99 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 Stereo Delay against 4.8 for TB Reverb. That said, the two scores are not equally well evidenced: TB Reverb has 55 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 75% of Stereo Delay's written reviews are positive against 94% of TB Reverb's.

UpkeepUpdate frequency

Stereo Delay ships an update every 6 months, TB Reverb every 2 months. The most recent releases landed on September 30, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Stereo Delay versus TB Reverb: the parameters behind the verdict, then further details
ParameterStereo DelayTB Reverb
Price$2.99 — better$8.99
Rating4.8 (5 ratings) — better4.8 (55 ratings)
Positive reviews75.0% of reviews94.3% of reviews — better
Number of ratings555 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.3 — better13.0
Further details — not scored
Size2 MB12 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedToneBoosters

Customer experience

Stereo Delay

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

TB Reverb

All ratings54 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews35 reviews
Positive94.3%
Neutral0.0%
Negative5.7%

In-app purchases

None

Stereo Delay

No in-app purchases

None

TB Reverb

No in-app purchases

Questions

Is Stereo Delay free?
Stereo Delay costs $2.99, with no in-app purchases.
Is TB Reverb free?
TB Reverb costs $8.99, with no in-app purchases.
Which has better reviews, Stereo Delay or TB Reverb?
Stereo Delay is rated higher. Stereo Delay averages 4.8 out of 5 from 5 ratings, while TB Reverb averages 4.8 from 55 ratings.
Do Stereo Delay or TB Reverb have ads?
Neither Stereo Delay nor TB Reverb shows ads.
Which is updated more often, Stereo Delay or TB Reverb?
Stereo Delay ships an update every 6 months, and TB Reverb every 2 months. Most recently, Stereo Delay was updated on September 30, 2026 and TB Reverb on October 24, 2026.

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