FM Playground vs SEPBLOOM LABS
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
FM Playground
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FM Playground is an educational app designed for learning and experimenting with FM synthesis (Frequency Modulation Synthesis). Developed as part of the "2025 Swift Sound - Creative Coding for Computer Musicians" project at MARTE Lab, Department of Multimedia, Dongguk University, by Yeonho Kim, Taejun Kim, Seoyul Son, and Sookyung Yoon, with guidance from Gwangyu Lee. The app features multiple interactive views where users can manipulate sound in real time using touch gestures and iPhone sensors (gyroscope, compass, etc.). Key Features: - What is FM Synthesis?: Learn the fundamentals of FM synthesis with an interactive view. Adjust sliders to hear real-time modulation effects and explore complex timbres. - Gesture-based control of timbre, frequency, and volume across various interactive views. - Open-source code available for study, experimentation, and expansion.
SEPBLOOM LABS
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SEPBLOOM LABS brings images, sound and touch into one quiet creative space. Import an image or create a short text composition. Explore a continuous particle field with orbit, zoom, attraction and depth. Choose organic motion presets or fluid textures from the MOTION panel. Import your own music to drive breathing, curls and flowing movement. Song analysis guides gradual transitions into floating particles during energetic passages, then back toward the image as the music settles. PLAY turns the canvas into an instrument. Choose a sound, root and scale, then play the multitouch keyboard. Shape expression with vertical finger movement, explore chords, or adjust envelope, filter, LFO and space. Felt, Clear and Dream offer different starting points. Record particle videos with imported music or your live performance, then preview, share or save them to Photos. Light and dark themes keep the focus on your work. Works locally on iPhone and iPad. No account is required. Music files are supplied by you; use content you have permission to share. AI music generation is not included in this release.
Screenshots
Verdict
The clearest difference is iOS requirement: SEPBLOOM LABS at 17.0 against FM Playground's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | FM Playground | SEPBLOOM LABS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 19 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Gwangyu Lee | YU ZHANG |
In-app purchases
FM Playground
No in-app purchases
SEPBLOOM LABS
No in-app purchases
Questions
Is FM Playground free?
Is SEPBLOOM LABS free?
Do FM Playground or SEPBLOOM LABS have ads?
Which is updated more often, FM Playground or SEPBLOOM LABS?
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