Bumbly Synthesizer vs RasterFX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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- 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
RasterFX
This app is a playable modular multi-effects processor for music creation. It allows users to build complex audio effect chains, modulate any control with various sources, and perform patches live. Visualizers provide real-time feedback on sound changes.
- Modular multi-effects processor
- Build custom effect chains
- Modulate any control
- Live performance features
- Real-time visualizers
- Record and share audio
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Make any sound move. RasterFX is a playable modular multi-effects processor for iPhone and iPad. Use it standalone with a microphone, an imported audio file or built-in signals — or load it as an AUv3 audio effect in AUM, GarageBand, Logic Pro for iPad, Loopy Pro, Cubasis and other Audio Unit hosts. BUILD YOUR EFFECT CHAIN Choose from Filter, Delay, Drive, Reverb, Grain, Repeat, Motion and Dynamics. Arrange up to six plates in series or split them into parallel A/B paths. Reorder the chain and the sound changes with it. MODULATE ANY CONTROL Patch LFOs, envelope followers, random and chaos sources, step sequencers, MIDI, macros, the XY pad or device tilt to any control. Create up to 16 modulation lines, with live arcs showing exactly how the sound is moving. PERFORM THE PATCH Morph between four snapshots on the XY pad. Turn eight macros. Hold four momentary throws for stutter, sweep, reverse and freeze. RasterFX is built to be played with one hand, not programmed and left alone. GENERATE, LOCK, EVOLVE Nudge a patch, reshape it or roll a new one. Lock the parts you want to keep, undo any result and save the seeds worth returning to. Evolve lets the patch drift over time while staying anchored to the sound you chose. SEE WHAT YOU HEAR Every effect has its own live visualizer. The CRT and halftone interface makes filters, delay taps, grains, dynamics and modulation visible without turning the screen into a wall of meters. RECORD THE RESULT Record the processed output to WAV, rename takes and share them from the app. FREE TO START. PRO ONCE. Free includes all eight effects, all modulation sources, every factory preset, three plates, four modulation lines and 60-second recordings. No ads, account, watermark or reduced audio quality. RasterFX Pro is a one-time purchase — not a subscription. It unlocks six plates, 16 modulation lines, split routing, XY snapshot morphing, Evolve, A/B compare, unlimited recording length and your own saved presets. Your saved sound always plays back exactly as created, even if it uses Pro features; Free limits editing, never playback. Made for headphones, late at night.
Screenshots
Verdict
The clearest difference is price: RasterFX at Free against Bumbly Synthesizer's $3.99. RasterFX also leads on rating (5.0 vs 3.0). Bumbly Synthesizer's advantage is in-app purchases (none vs 1) and chart position (#193 vs unranked). On ratings volume, ads 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
RasterFX is free to download; Bumbly Synthesizer costs $3.99 up front. RasterFX sells 1 one-off in-app purchase. Bumbly Synthesizer asks for nothing beyond the download.
RasterFX holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Bumbly Synthesizer | RasterFX |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 41 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | #193 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 105 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | POGPALE Labs Inc. | Chih Han Lin |
Customer experience
Bumbly Synthesizer
RasterFX
In-app purchases
Bumbly Synthesizer
No in-app purchases
RasterFX
- RasterFX Pro$3.99
Questions
Is Bumbly Synthesizer free?
Is RasterFX free?
Which has better reviews, Bumbly Synthesizer or RasterFX?
Do Bumbly Synthesizer or RasterFX have ads?
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