Comparison

BLEASS Flanger vs Know the Notes

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

Head to head
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/

About

Know the Notes

Features
Read full description

Unlock your musical potential with Know the Notes, the ultimate ear training companion for musicians of all levels. Whether you're a beginner learning to identify notes or an advanced player refining your pitch, our app offers a responsive simple to use practice environment. Realistic Audio Experience Forget static, low-quality samples. Know Your Notes uses advanced real-time audio synthesis to generate sounds instantly. Piano: Rich, synthesized piano tones. Guitar: Plucked strings using the Karplus-Strong algorithm. Tone: Pure sine waves for focused frequency training. Practice Mode: Freely explore notes on an interactive keyboard with immediate visual feedback. Track your streaks and improve at your own pace. Quiz Mode: Test your skills with customizable quizzes. Choose your quiz length and difficulty. Delayed Feedback enhances real ear-training exams by hiding results until the end of the quiz. Customizable and Learning Difficulty Control: Toggle sharps and flats (black keys) to match your skill level. Settings: Adjust quiz lengths and feedback styles to suit your learning preference. Stop guessing and start knowing. Download Know Your Notes and tune your ear today!

Screenshots

BLEASS Flanger3 screens
Know the Notes3 screens

Verdict

The call

The clearest difference is update cadence: Know the Notes at fortnightly against BLEASS Flanger's every 31 months. Know the Notes also leads on price ($1.99 vs $3.99). BLEASS Flanger's advantage is iOS requirement (11.0 vs 15.1). On ads, in-app purchases and device support 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 Flanger costs $3.99 and Know the Notes $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BLEASS Flanger ships an update every 31 months, Know the Notes fortnightly. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
BLEASS Flanger versus Know the Notes: the parameters behind the verdict, then further details
ParameterBLEASS FlangerKnow the Notes
Price$3.99$1.99 — better
Rating5.0 (13 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings13 — better—
Update frequencyEvery 31 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size27 MB26 MB
Age rating4+4+
DeveloperBLEASSDAVID MAYR LERNER

In-app purchases

None

BLEASS Flanger

No in-app purchases

None

Know the Notes

No in-app purchases

Questions

Is BLEASS Flanger free?
BLEASS Flanger costs $3.99, with no in-app purchases.
Is Know the Notes free?
Know the Notes costs $1.99, with no in-app purchases.
Do BLEASS Flanger or Know the Notes have ads?
Neither BLEASS Flanger nor Know the Notes shows ads.
Which is updated more often, BLEASS Flanger or Know the Notes?
BLEASS Flanger ships an update every 31 months, and Know the Notes fortnightly. Most recently, BLEASS Flanger was updated on November 7, 2026 and Know the Notes on November 5, 2026.

Other comparisons