Comparison

BLEASS Flanger vs TB Lowtone

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

TB Lowtone

This app is an innovative bass synthesizer and AUv3 plugin that uses loudness-domain harmonic synthesis for deeper, more consistent bass sounds. It features multiple oscillators, modulation options, and built-in effects, plus an AI randomizer for creating new patches.

Highlights
  • Loudness-domain harmonic synthesis
  • 3 analog-simulated oscillators
  • Voltage-controlled noise synthesizer
  • AI randomizer for patch generation
  • Extended LFOs and ADSR envelope
  • Pro quality effects (reverb, chorus, delay)
  • AUv3 plugin support
Currently charting
Read full description

TB Lowtone is an innovative bass synthesizer app and AUv3 plug-in featuring three analog-simulated, voltage-controlled oscillators with a large variety of waveform algorithms, continuous pulse-width modulation (PWM), Frequency Modulation (FM) and oscillator hard sync, complemented by a voltage-controlled noise synthesizer, parameter modulation a re-designed non-linear voltage controlled filter. TB Lowtone is the world's first bass synthesizer featuring loudness-domain harmonic synthesis, creating deeper, more consistent and production-ready bass sounds compared to conventional synthesizers operating in the (linear) amplitude domain. TB Lowtone also features an AI randomizer that generates new patches with a single click, and which learns from the patches you have already created to generate new, personalized patches! Loudness-domain synthesis Loudness perception of tones and harmonics is known to be highly non-linear and intricately frequency and level dependent. Equal loudness contours, or Fletcher-Munson curves demonstrate this drastic effect for sine tones, which is especially relevant for low frequencies. The loudness of a synthesizer bass note, and all its individual harmonics, will therefore depend strongly on what note you play on your synth's keyboard. To overcome the resulting inconsistencies in loudness and timbre, TB Lowtone features innovative, loudness-domain synthesis algorithms that adjust each harmonic individually to compensate for loudness deviations across frequency. Modulation and FX TB Lowtone provides two extended low-frequency oscillators (X-LFOs) featuring a wide range of waveforms. The LFOs can be beat and key synced, with a configurable onset delay and a specific number of cycles to run. In addition, a conventional ADSR envelope with configurable onset delay is provided. To top if all off, a gate editor designed to quickly put together modern production modulation patterns is available as well to modulate a range of VCO, VCN and VCF parameters. Reverb, chorus, and delay effects and a high-quality peak limiter are provided to produce production-ready sounds. Features: - 3 VCOs plus a VCN featuring a wide range of waveform algorithms - All VCOs support hard sync, pulse-width modulation (PWM) and frequency modulation (FM) - Lots of filter types for spectral shaping - 2 LFOs, one extra envelope and a gate editor for parameter modulation - Pro quality effects (reverb, chorus, delay, peak limiter) - Unique loudness domain synthesis algorithms - A smart randomiser that learns from your patches - AUv3 with resizable UI and dozens of color themes to choose from - Preset management including import and export options - Undo, redo, A/B switching 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

BLEASS Flanger3 screens
TB Lowtone2 screens

Verdict

The call

The clearest difference is rating: BLEASS Flanger at 5.0 against TB Lowtone's 4.4. BLEASS Flanger also leads on price ($3.99 vs $9.99) and review sentiment (100% vs 85%). TB Lowtone's advantage is update cadence (every 3 months vs every 31 months) and chart position (#189 vs unranked). 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 Flanger costs $3.99 and TB Lowtone $9.99 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 4.4. Both are backed by a comparable volume of ratings — 13 and 14 respectively. Written reviews point the same way: 100% of BLEASS Flanger's written reviews are positive against 85% of TB Lowtone's.

UpkeepUpdate frequency

BLEASS Flanger ships an update every 31 months, TB Lowtone every 3 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 5 level
BLEASS Flanger versus TB Lowtone: the parameters behind the verdict, then further details
ParameterBLEASS FlangerTB Lowtone
Price$3.99 — better$9.99
Rating5.0 (13 ratings) — better4.4 (14 ratings)
Positive reviews100.0% of reviews — better84.6% of reviews
Number of ratings1314 — better
Update frequencyEvery 31 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#189 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size27 MB13 MB
Age rating4+4+
DeveloperBLEASSToneBoosters

Customer experience

BLEASS Flanger

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

TB Lowtone

All ratings14 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews13 reviews
Positive84.6%
Neutral15.4%
Negative0.0%

In-app purchases

None

BLEASS Flanger

No in-app purchases

None

TB Lowtone

No in-app purchases

Questions

Is BLEASS Flanger free?
BLEASS Flanger costs $3.99, with no in-app purchases.
Is TB Lowtone free?
TB Lowtone costs $9.99, with no in-app purchases.
Which has better reviews, BLEASS Flanger or TB Lowtone?
BLEASS Flanger is rated higher. BLEASS Flanger averages 5.0 out of 5 from 13 ratings, while TB Lowtone averages 4.4 from 14 ratings.
Do BLEASS Flanger or TB Lowtone have ads?
Neither BLEASS Flanger nor TB Lowtone shows ads.
Which is updated more often, BLEASS Flanger or TB Lowtone?
BLEASS Flanger ships an update every 31 months, and TB Lowtone every 3 months. Most recently, BLEASS Flanger was updated on November 7, 2026 and TB Lowtone on November 3, 2026.

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