Pendoly vs Sound Generator Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pendoly
This app transforms pendulum swings into musical compositions. Choose from various instrument sounds or create your own unique harmonies. Experience the blend of physics and music with high-quality, recorded instruments.
- Pendulum-driven music generation
- Customizable harmonies
- Multiple high-quality instrument sounds
- Physics-based composition
- Hand-recorded instruments
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Pendoly turns the gentle swing of pendulums into music. Pick a flavour, and let gravity do the composing — or dive in and craft your own harmonies. Oh, and the instruments? A Steinway grand, a vintage Rhodes, a Celesta, a Marimba and a Vibraphone, all hand-recorded.
Sound Generator Lab
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Design your sound freely. Your fingertips become the instrument. This app is a professional-grade synthesizer that combines simplicity with powerful sound-shaping capabilities. It covers the essentials of sound synthesis, featuring four basic waveforms-Sine, Square, Sawtooth, and Triangle-along side LFO modulation and panning controls. With the real-time oscilloscope, you can edit your sounds while "seeing" them move. Key Features: - Four Basic Waveforms: Seamlessly switch between Sine, Square, Sawtooth, and Triangle waves. - Real-time Oscilloscope: Visualize your sound instantly. Experience waveform changes as they happen. - Precision Frequency Control: Intuitive slider adjustments combined with a numeric text input for exact, Hz-level tuning. - LFO Modulation Unit: Adjust Frequency and Depth to add vibrato or create unique modulation effects. - Stereo Panner: Control the spatial positioning of your sound to create immersive width. - Responsive Piano Keyboard: A piano layout optimized for any screen size, ensuring a comfortable playing experience. Recommended For: - Those who want to learn the basics of synthesizer sound design. - Creators looking to easily generate original sound effects (SE). - Musicians seeking a tool for quick musical inspiration. - Anyone who wants to play a high-quality synth on their smartphone without needing physical hardware. Download now and step into the world of infinite sound creation.
Screenshots
Verdict
The clearest difference is price: Sound Generator Lab at Free against Pendoly's $3.99. Pendoly's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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
Sound Generator Lab is free to download; Pendoly costs $3.99 up front. Sound Generator Lab sells 1 one-off in-app purchase. Pendoly asks for nothing beyond the download.
Pendoly ships an update every 2 months, Sound Generator Lab every 5 weeks. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.
| Parameter | Pendoly | Sound Generator Lab |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 30 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Caroline Siegers | akira ohmachi |
In-app purchases
Pendoly
No in-app purchases
Sound Generator Lab
- Remove Ads$1.99









