Comparison

BLEASS Peaks vs Evil Otto

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

Head to head
About

BLEASS Peaks

This app transforms sound filtering into a playable musical instrument. Create complex filter responses with up to 32 peaks and animate them using MIDI input and a comprehensive modulation system. It offers a flexible effects section for further sound sculpting.

Highlights
  • Multi-peak bell-style filter engine
  • Up to 32 resonant peaks/notches
  • MIDI playable filter
  • Eight simultaneous filter voices
  • Comprehensive modulation system (LFOs, envelopes)
  • Five-slot effects section
  • Real-time visualization
Read full description

BLEASS Peaks turns filtering into a fully playable musical experience. Built around a powerful multi-peak bell-style filter engine, it lets you shape and animate sound in ways that go far beyond traditional effects. Create rich filter responses with up to 32 resonant peaks or notches, and sculpt their distribution, width, and behavior with intuitive controls. Everything is designed to be both immediate and deep, so you can quickly dial in a sound and push it into more experimental territory. Switch to MIDI mode and Peaks reveals its true potential. The filter becomes an instrument you can play, with frequency controlled directly from incoming notes. With up to eight simultaneous filter voices, you can turn rhythms into harmonies, add movement to static sounds, or create evolving textures that follow your performance. A comprehensive modulation system brings constant motion and life to your sound. 3 LFOs, envelopes, macros, and MIDI sources can be freely assigned to parameters, making it easy to build subtle movement or complex, reactive behaviors. BLEASS Peaks also includes a flexible effects section with five processing slots, allowing you to shape and enhance your sound further with distortion, dynamics, delay, and filtering. Every stage can be modulated, opening the door to deeply expressive and evolving effects. Despite its depth, Peaks remains fast, fluid, and intuitive to use. Its responsive interface, real-time visualization, and performance-ready controls make it equally at home in the studio or on stage. From precise tonal shaping to bold, animated transformations, BLEASS Peaks gives you a new way to hear and perform your sound. Optimized for iOS, it delivers high performance, low CPU usage, and a smooth, touch-friendly workflow built for modern music production. BLEASS Peaks Plugin is also available for Desktop. More information about BLEASS Peaks on www.bleass.com/peaks

About

Evil Otto

This audio effect applies simultaneous upward and downward compression across three frequency bands for detailed sound. It offers precise control over audio dynamics and includes features like sidechain input and real-time metering.

Highlights
  • Three-band OTT compression
  • Precise control parameters
  • Sidechain input for rhythmic effects
  • Real-time metering per band
  • Factory and user presets
  • Cross-platform preset compatibility
Features
Read full description

Evil Otto is a multiband OTT (Over-The-Top) compressor that applies simultaneous upward and downward compression across three frequency bands. The result is dense, hyper-detailed audio where peaks are controlled and quiet details are pushed forward — a sound heard across modern electronic music, pop, and hip-hop production. Features -- Three-Band OTT Compression Evil Otto splits your signal into low, mid, and high frequency bands and applies independent upward and downward compression to each. Quiet details come up, peaks come down, and each band can be tuned separately. -- Precise Control Without Complexity Fifteen parameters give you everything you need and nothing you don't: Depth, Time, independent Down and Up amounts, per-band thresholds, per-band output levels, and input/output gain. -- Sidechain Input Route an external signal to duck the compressed output for rhythmic pumping effects. A dedicated Listen mode lets you monitor the sidechain signal to verify routing. -- Real-Time Metering Nine meters show input levels, gain reduction, and output levels per band. The center meters display both downward compression and upward expansion relative to the threshold, so you can see exactly what the compressor is doing. -- Factory Presets Includes a library of starting points across a range of applications. Save and recall your own presets with the built-in preset browser. -- Cross-Platform Compatible User presets created on iOS work on macOS, Windows, and Linux. Sessions created in GarageBand or Logic on iOS will open the desktop version on macOS.

Screenshots

BLEASS Peaks4 screens
Evil Otto1 screens

Verdict

The call

The clearest difference is review sentiment: BLEASS Peaks at 100% against Evil Otto's 50%. BLEASS Peaks also leads on rating (5.0 vs 4.5). Evil Otto's advantage is price ($4.99 vs $14.99). 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

BLEASS Peaks costs $14.99 and Evil Otto $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Peaks holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 100% of BLEASS Peaks's written reviews are positive against 50% of Evil Otto's.

Scorecard3 real differences · 6 level
BLEASS Peaks versus Evil Otto: the parameters behind the verdict, then further details
ParameterBLEASS PeaksEvil Otto
Price$14.99$4.99 — better
Rating5.0 (2 ratings) — better4.5 (4 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings24 — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size27 MB60 MB
Age rating4+4+
DeveloperBLEASSAudio Damage, Inc.

Customer experience

BLEASS Peaks

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Evil Otto

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

BLEASS Peaks

No in-app purchases

None

Evil Otto

No in-app purchases

Questions

Is BLEASS Peaks free?
BLEASS Peaks costs $14.99, with no in-app purchases.
Is Evil Otto free?
Evil Otto costs $4.99, with no in-app purchases.
Which has better reviews, BLEASS Peaks or Evil Otto?
BLEASS Peaks is rated higher. BLEASS Peaks averages 5.0 out of 5 from 2 ratings, while Evil Otto averages 4.5 from 4 ratings.
Do BLEASS Peaks or Evil Otto have ads?
Neither BLEASS Peaks nor Evil Otto shows ads.

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