Comparison

Kleverb vs BLEASS Flanger

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

Head to head
About

Kleverb

This app offers a high-quality algorithmic reverb effect with an intuitive interface. It allows for detailed simulation of various room acoustics and includes features like modulation and a ducker for precise sound shaping. Suitable for diverse musical genres.

Highlights
  • Algorithmic reverb effect
  • Room size selection (SMALL, MEDIUM, LARGE)
  • Selectable filters on reflections
  • Wet signal modulation
  • Damping and diffusion parameters
  • Integrated ducker with sidechain
  • Standalone app and AUv3 plugin
Read full description

Kleverb is a high quality algorithmic reverb effect. An intuitive UI combined with a carefully calibrated network of filters and delays makes this a powerful effect useful in any context; all from acoustic jazz to EDM. With three different room size setups (SMALL, MEDIUM, LARGE), selectable filter on both early and late reflections, modulation, damping, diffusion and much more (see below) almost any kind of room can be simulated. There’s also a ducker included that uses the dry signal as sidechain. Very useful to keep vocals or other solo instruments distinct even when they’re soaking wet. The 64 factory presets covers most of the Kleverb features. Features: • Room size selection. • Filters with selectable type on both early and late reflections. • Wet signal modulation. • Damping filter. • Diffusion and Stereo Spread parameters. • Decay time between 0 and 25 seconds. • Pre delay parameter. • Ducker (compressor), with dry signal as sidechain. • Early / Late signal mix parameter. • Wet and Dry signal level parameters. Full documentation available inside the app or at https://klevgrand.se/download/kleverb-docs/ Kleverb works both as a standalone app and as an AUv3 plugin. Feedback or suggestions? Drop us a line at support(at)klevgrand.se or @klevgrand on Twitter

About

BLEASS Flanger

This audio effect app provides a modern take on classic flanging, offering flexible modulation sources, an envelope generator, and beat synchronization. It allows for complex and evolving timbral movement within your sound, with intuitive controls and efficient CPU usage.

Highlights
  • Flexible LFOs
  • Envelope generator
  • Beat synchronization
  • Variable modulation routing
  • Multi-mode input filter
  • Stereo width control
Read full description

BLEASS Flanger harnesses the sonic characteristics of classic flanger effects and brings them fully up-to-date with a pair of flexible LFOs, variable modulation routing, an envelope generator and beat synchronisation. Classic flangers are a delay-based effect, and modulate the delay time to create the distinctive, repetitive flanged sound. But with BLEASS Flanger, multiple modulation sources are combined to create detailed, complex and evolving timbral movement within your sound. The addition of an envelope generator, which is triggered by the incoming signal, adds an additional dimension to the flanger effect, making it sensitive to the dynamics and nuances of your performances. The second LFO can take the sonic possibilities further still, with the option for it to modulate the delay’s feedback strength or stereo width. The tonal character of the effect can be controlled easily thanks to the multi-mode input filter, whilst the ability to synchronise the LFOs to the beat of your music allows you to explore completely new rhythmic and evolving effects. BLEASS’ trademark interface design ensures this powerful collection of tools are both easy and fun to work with, so you can harness their sonic versatility without ever hindering your musical creativity. And with super-efficient CPU usage, and compatibility with all major hosts and DAWs on desktop, iPad or iPhone, BLEASS Flanger is the only flanger you will ever need. More information on https://www.bleass.com/flanger/

Screenshots

BLEASS Flanger3 screens

Verdict

The call

The clearest difference is price: BLEASS Flanger at $6.99 against Kleverb's $19.99. BLEASS Flanger also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 88%). Kleverb's advantage is update cadence (every 4 months vs every 31 months). On ratings volume, 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

Kleverb costs $19.99 and BLEASS Flanger $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Flanger holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 13 and 13 respectively. Written reviews point the same way: 88% of Kleverb's written reviews are positive against 100% of BLEASS Flanger's.

UpkeepUpdate frequency

Kleverb ships an update every 4 months, BLEASS Flanger every 31 months. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Kleverb versus BLEASS Flanger: the parameters behind the verdict, then further details
ParameterKleverbBLEASS Flanger
Price$19.99$6.99 — better
Rating4.8 (13 ratings)5.0 (13 ratings) — better
Positive reviews87.5% of reviews100.0% of reviews — better
Number of ratings1313
Update frequencyEvery 4 months — betterEvery 31 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.011.0 — better
Further details — not scored
Size22 MB27 MB
Age rating4+4+
DeveloperKlevgrand Produkter ABBLEASS

Customer experience

Kleverb

All ratings13 ratings
Positive92.3%
Neutral7.7%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

BLEASS Flanger

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kleverb

No in-app purchases

None

BLEASS Flanger

No in-app purchases

Questions

Is Kleverb free?
Kleverb costs $19.99, with no in-app purchases.
Is BLEASS Flanger free?
BLEASS Flanger costs $6.99, with no in-app purchases.
Which has better reviews, Kleverb or BLEASS Flanger?
BLEASS Flanger is rated higher. Kleverb averages 4.8 out of 5 from 13 ratings, while BLEASS Flanger averages 5.0 from 13 ratings.
Do Kleverb or BLEASS Flanger have ads?
Neither Kleverb nor BLEASS Flanger shows ads.
Which is updated more often, Kleverb or BLEASS Flanger?
Kleverb ships an update every 4 months, and BLEASS Flanger every 31 months. Most recently, Kleverb was updated on October 24, 2026 and BLEASS Flanger on October 24, 2026.

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