Developmental (FEDC-informed)
SoundSphere
A soundscape creation tool that transforms heightened auditory sensitivity into a creative strength
▶ Play it nowBuilt for sittings of about 20 minutes on the screen. That is our design budget, not a measurement.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, asks, and patiently scaffolds learning. On-device AI personalizes the mentor's responses to your kid's progress — never connecting to a server, never collecting data.
Mentored by Hush
#81C784 SoundSphere lets you build your own calming or energizing soundscapes by mixing sounds together. Track how you are feeling with four energy colours, then discover which sound combinations help you focus, relax, or get energized. It is your personal sound studio!
Characters who teach
Meet the cast
SoundSphere's characters each teach one part of how sound works. Wave explains pitch, Bloom shows how a sound starts, holds, and fades, Layer explains why a violin and a flute sound different, Ring shows how a room changes a sound, and Tune builds new sounds from those pieces. Drum, Sigh, Amp, Hone, and Vibe cover rhythm, silence, loudness, focused listening, and resonance. Hush is the mentor who guides them.
Wave
Frequency — the pitch axis; high-frequency sounds vibrate fast, low-frequency sounds vibrate slow
Read chapter →
Bloom
Envelope — the attack / sustain / decay / release shape of a sound (how it begins, holds, and fades)
Read chapter →
Layer
Timbre — the overtone fingerprint that makes a violin sound like a violin and a flute sound like a flute (even at the same pitch)
Read chapter →
Ring
Space — reverb, echo, and room ambience (how the same sound feels different in a bathroom vs a stadium vs a forest)
Read chapter →
Tune
Synthesis — how primitive sound-elements (frequencies + envelopes + layers + space) combine to build entirely new sounds
Read chapter →
Drum
Rhythm / pulse / tempo
Read chapter →
Sigh
Silence / rest / negative space
Read chapter →
Amp
Loudness / amplitude / dynamics
Read chapter →
Hone
Selective attention / filtering
Read chapter →
Vibe
Resonance / sympathetic vibration
Read chapter →
Browse all chapters → · What's distributed-narrative methodology? →
What's inside
Building Soundscapes
Browse the sound library and pick sounds you like -- rain, ocean waves, birds, gentle music, and many more. Drag them onto your mixing board and adjust the volu
Energy-colour check-in
Before and after using a soundscape, check in with how you are feeling. Are you in Blue energy (slow, tired), Green energy (calm, ready), Yellow energy (wiggly, s
Saving and Scheduling
Save your favorite soundscapes and give them names like "Homework Focus" or "Bedtime Calm." You can even set up a schedule so the right soundscape is ready when
Mentored by Hush — on-device AI, no data leaves the device.
How SoundSphere handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ Free — no ads, no in-app purchases
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ No chat with strangers — play-together rooms use a short code and preset emotes, never typed messages
SoundSphere runs on ForgeKit — the open-source Swift Package Manager framework that powers every Spark & Anvil app. ForgeKit ensures consistent accessibility, COPPA compliance, and design language across the portfolio, so your kid's progress and preferences feel coherent across every app they touch.
Coming to the App Store
SoundSphere is in active development. Email us to hear when it ships — no marketing, no spam, just a one-shot launch announcement.
Email me at launch
