Comparison

Kleverb vs BTS FX

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

BTS FX

This audio effect plugin offers a versatile multi-effect suite for music production. It features a bitcrusher, distortion, reverb with a freeze function, and a limiter, all controllable within compatible DAWs.

Highlights
  • Bitcrusher with adjustable rate and bit
  • Distortion module with various algorithms
  • Reverb module with freeze function
  • Brick-wall limiter
  • Oversampling module (2x, 4x, 8x)
  • Stereo/Mode processing
  • Parameter randomizer
Features
Read full description

BTS FX emerges as a dynamic multi-effect plugin, incorporating a diverse set of modules. Available on as Auv3 audio effect or can be loaded in IAA. App requires compatible Auv3 or IAA host (DAW) to load an effect. Among its Main features are: Pre/Post Moog Ladder Filter Bitcrusher with adjustable Rate and Bit controls Distinctive Distortion Module offering various reshaping algorithms. The plugin boasts a lush Reverb Module with a unique Freeze function , complemented by a Brick-wall Limiter Module and convenient Input/Output Gain adjustments. Additionally the Oversampling module provides 2x, 4x, and 8x factors, featuring both polyphase allpass IIR and FIR versions with latency compensation. Further enhancing its capabilities, BTS includes Stereo/Mode processing and a Parameter Randomiser for added creative exploration. Preset Manager, etc.

Screenshots

BTS FX2 screens

Verdict

The call

The clearest difference is price: BTS FX at $9.99 against Kleverb's $19.99. BTS FX also leads on update cadence (every 2 days vs every 4 months) and rating (5.0 vs 4.8). Kleverb's advantage is ratings volume (13 vs 3). On ads, in-app purchases, monetization model and iOS requirement 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 BTS FX $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BTS FX holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 13 and 3 respectively.

UpkeepUpdate frequency

Kleverb ships an update every 4 months, BTS FX every 2 days. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Kleverb versus BTS FX: the parameters behind the verdict, then further details
ParameterKleverbBTS FX
Price$19.99$9.99 — better
Rating4.8 (13 ratings)5.0 (3 ratings) — better
Positive reviews87.5% of reviews—
Number of ratings13 — better3
Update frequencyEvery 4 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.012.0 — better
Further details — not scored
Size22 MB25 MB
Age rating4+4+
DeveloperKlevgrand Produkter ABDmytro Kiro

Customer experience

Kleverb

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

BTS FX

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kleverb

No in-app purchases

None

BTS FX

No in-app purchases

Questions

Is Kleverb free?
Kleverb costs $19.99, with no in-app purchases.
Is BTS FX free?
BTS FX costs $9.99, with no in-app purchases.
Which has better reviews, Kleverb or BTS FX?
BTS FX is rated higher. Kleverb averages 4.8 out of 5 from 13 ratings, while BTS FX averages 5.0 from 3 ratings.
Do Kleverb or BTS FX have ads?
Neither Kleverb nor BTS FX shows ads.
Which is updated more often, Kleverb or BTS FX?
Kleverb ships an update every 4 months, and BTS FX every 2 days. Most recently, Kleverb was updated on November 2, 2026 and BTS FX on October 25, 2026.

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