Bumbly Synthesizer vs Keys
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
Keys
Turn your mobile device into a versatile MIDI master keyboard. Connect wirelessly to musical instruments and DAWs to control virtual instruments and enhance your music production and live performances.
- Transform device into MIDI master keyboard
- Connect to musical devices
- Send MIDI notes and CC
- Control virtual instruments
- MIDI over Bluetooth
- Customizable MIDI mapping
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Transform your iPad or iPhone into a powerful Midi Master Keyboard with our app! Our app allows you to connect to any musical device and send Midi notes and Midi CC, making your mobile device a versatile tool for music production and live performance. Whether you're a professional musician or just starting out, our app offers a simple and intuitive interface to help you create, control, and perform music. With our app, you can easily connect to your digital audio workstation (DAW), synthesizers, and other musical devices to control virtual instruments and bring your musical ideas to life. Our app also supports MIDI over Bluetooth, allowing you to connect wirelessly to your musical devices. Plus, with the ability to customize your Midi mapping, you can personalize your setup to fit your unique needs. Take your music production and performance to the next level with our Midi Master Keyboard app for iPad and iPhone. Download now and experience the power of mobile music making.
Screenshots
Verdict
The clearest difference is rating: Bumbly Synthesizer at 3.0 against Keys's 1.0. Bumbly Synthesizer also leads on price ($3.99 vs $5.99) and iOS requirement (15.0 vs 17.0). Keys's advantage is update cadence (every 10 months vs every 41 months). 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
Bumbly Synthesizer costs $3.99 and Keys $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Bumbly Synthesizer holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Bumbly Synthesizer ships an update every 41 months, Keys every 10 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.
| Parameter | Bumbly Synthesizer | Keys |
|---|---|---|
| Price | $3.99 — better | $5.99 |
| Rating | 3.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 41 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 105 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | POGPALE Labs Inc. | LittleCodeShop.com |
Customer experience
Bumbly Synthesizer
Keys
In-app purchases
Bumbly Synthesizer
No in-app purchases
Keys
No in-app purchases









