Comparison

Bumbly Synthesizer vs SimplyLowPass

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

Head to head
About

Bumbly Synthesizer

Create unique sounds by drawing waveforms or using motion controls. This app offers a versatile synthesizer with customizable touch interfaces and a sequencer for composing music.

Highlights
  • Draw custom sound waves
  • Customizable touch interfaces (ribbon, piano, guitar)
  • Sequencer for drawing music playback
  • Motion control for sound expression
  • Wingbeat-inspired sound generation
  • Adjustable synthesizer parameters
Features
Read full description

- Draw the sound waves you want to hear in Bumbly Synthesizer. - Play music with customizable touch interfaces like ribbon, piano, guitar, and more. - Draw lines on the sequencer and hear your music play back exactly the way you drew it. - Tilt your device and express music through your body movements. 1. Synthesizer - Bumbly Synthesizer makes sound by simulating the movement of the wings of insects. - Draw single-cycle waveforms inspired by how insects (bees, mosquitoes, flies) create airflow with their wings, or sketch classic waveforms to hear them in action. - You can modify sound using pitch modulation of wings, pitch variation between two wings, wing size filter, room reverb and amplitude envelope. - Experiment with the synthesizer parameters and enjoy interesting sound variations. 2. Musical Instrument - Use Bumbly as a musical instrument. - Play music with 6 customizable sound panels. - Customize size, position, pitch range, velocity control(on/off), horizontal/vertical, continuous/discrete pitch, appearance(grid,note names) of sound panels. - Make familiar instruments (piano, guitar) or your own creative instrument. 3. Sequencer - Draw lines on the sequencer grid. - Bumbly will play what you draw. 4. Motion Mode - You can play Bumbly using your movements. - Tilt the device to control the pitch and create the sounds you want. * Bumbly has 6 monophonic sound generators. Make harmony (polyphonic sound) using multiple generators. * We recommend using device speakers or wired earphones. Bumbly Synthesizer: https://www.pogpalelabs.com/bumbly User Manual: https://www.pogpalelabs.com/bumbly-manual

About

SimplyLowPass

This app provides a simple yet fast low-pass audio filter. It offers control over cutoff frequency and resonance, functioning as an AUv3 app extension for use in compatible music production hosts. It serves as a delivery mechanism and demonstration for the filter.

Highlights
  • Low-pass audio filter
  • Cutoff frequency control
  • Resonance factor control
  • AUv3 app extension
  • Compatible with music hosts
Features
Read full description

A simple but fast low-pass filter with control over cutoff frequency and resonance factor. The filter exists in an AUv3 app extension so it is available for use in any host app that supports AudioUnit components such as AUM or Cubasis or GarageBand. This app is just a delivery mechanism for the AUv3 app extension and a demo of how it works.

Screenshots

Bumbly Synthesizer4 screens
SimplyLowPass2 screens

Verdict

The call

The clearest difference is rating: SimplyLowPass at 5.0 against Bumbly Synthesizer's 3.0. SimplyLowPass also leads on update cadence (every 3 weeks vs every 41 months) and price ($0.99 vs $3.99). 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

Bumbly Synthesizer costs $3.99 and SimplyLowPass $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SimplyLowPass holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Bumbly Synthesizer ships an update every 41 months, SimplyLowPass every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 7 level
Bumbly Synthesizer versus SimplyLowPass: the parameters behind the verdict, then further details
ParameterBumbly SynthesizerSimplyLowPass
Price$3.99$0.99 — better
Rating3.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 41 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better16.6
Further details — not scored
Size105 MB5 MB
Age rating4+4+
DeveloperPOGPALE Labs Inc.Brad Howes

In-app purchases

None

Bumbly Synthesizer

No in-app purchases

None

SimplyLowPass

No in-app purchases

Questions

Is Bumbly Synthesizer free?
Bumbly Synthesizer costs $3.99, with no in-app purchases.
Is SimplyLowPass free?
SimplyLowPass costs $0.99, with no in-app purchases.
Which has better reviews, Bumbly Synthesizer or SimplyLowPass?
SimplyLowPass is rated higher. Bumbly Synthesizer averages 3.0 out of 5 from 1 ratings, while SimplyLowPass averages 5.0 from 1 ratings.
Do Bumbly Synthesizer or SimplyLowPass have ads?
Neither Bumbly Synthesizer nor SimplyLowPass shows ads.
Which is updated more often, Bumbly Synthesizer or SimplyLowPass?
Bumbly Synthesizer ships an update every 41 months, and SimplyLowPass every 3 weeks. Most recently, Bumbly Synthesizer was updated on November 3, 2026 and SimplyLowPass on November 7, 2026.

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