Oiled Black Walnut
Warm, woody fundamental resonance with calm, settled damping.
Handcrafted iOS Utility · 48 kHz Modal Synthesis
A Real Wooden Dice Cup,
Tuned by Physics
Missing physical dice on board-game night, rolling tabletop RPG checks, or craving the warm knock of rounded bone dice inside oiled black walnut? Pick up your iPhone and shake—or double-tap inside the bowl.
- Zero Audio Samples · Live 48 kHz Synth
- Flip-to-Cover Lock & Smooth Peek
- Offline · No Ads · Zero Tracking
SIGNATURE MOMENTS
Choreographed Around Real Table Instincts
No cluttered RPG spreadsheets or noisy buttons. Shake to roll, snap downward to settle, flip face-down to lock, and slide up to peek.
48 KHZ MODAL ACOUSTIC SYNTHESIS
Six Handcrafted Vessels. Zero Recorded Loops.
Instead of replaying canned MP3 clips, every wall strike, floor scrape, rim flick, and die-on-die click excites a 4-mode resonant cavity filter bank in real time.
Aged Moso Bamboo
Lively, articulate bamboo transient with brisk rebound.
Stitched Saddle Leather
Velvety, hushed leather absorption ideal for late-night parlour tables.
Vintage Red Bakelite
Bright mid-century club timbre with lively kinetic bounce.
Turned Brushed Brass
Lathe-turned heavy brass vessel with shimmering harmonic sustain.
Ice-Crackle Celadon
Luminous porcelain ring paired with delicate crackled jade glaze.
BUILT FOR FOLDABLE IPHONE DUO
Native Hardware Postures on iPhone Duo
Built directly on SwiftUI onHingeChange and crease-division geometry so folding the hardware controls the 3D cup.
L-Shape Tabletop Privacy Shield
Fold iPhone Duo half-open on the table: the flat lower half keeps the 3D brass cup covered to opponents while the upright upper screen forms a stitched leather Private Shield showing your secret sum and hand. Closing locks your roll; cracking 12°–90° lifts the 3D lid degree by degree.
7.6" Crease-Aware Canvas & Thumb Tray
Unfold flat to shift the top leather pull-tab clear of the center fold crease while anchoring a vertical recessed dice tray along the right bezel—right under your thumb.
SYSTEM & PRIVACY
Strictly Offline. Stays on Your iPhone.
Crafted purely as a tactile utility for family board games, RPGs, and everyday decisions—with zero gambling mechanics, virtual chips, or analytics.
Home & Lock Screen Widgets + Siri
Roll dice or cycle dice counts right from interactive iOS Home Screen and Lock Screen widgets, or trigger rolls hands-free via Siri and the Action Button.
Zero Data Collection
No accounts, no cloud servers, no ad networks, and no analytics SDKs. Motion sensor readings stay strictly in volatile memory to drive real-time rigid-body physics.
Try Before You Buy · One-Time Unlock
Walnut & Bamboo cups, Bone & Ivory dice, and 1–5 dice are free forever—plus 3 complimentary trial rolls on every Pro material. Optional one-time Rattle Pro unlock, zero subscriptions.
TRANSPARENT PRICING
Generous Free Tier. One-Time Pro Unlock.
No subscriptions, no recurring charges, and never an interrupting paywall mid-roll.
Free Forever
$0 · Always Free- Oiled Black Walnut (740 Hz) & Aged Bamboo (620 Hz) handcrafted cups
- Patina Bone & Ivory dice styles, rolling 1 to 5 dice simultaneously
- Full flip-to-cover lock, upward peek gesture, sum & parlour hand breakdown
- Interactive Home/Lock Screen widgets, Siri Shortcuts & 3 free Pro trial rolls
Rattle Pro
$3.99 · One-Time Lifetime Unlock- Unlock Saddle Leather, Vintage Bakelite, Brushed Brass & Crackled Celadon cups
- Unlock Mirror Obsidian (gold pips) & Baltic Amber collector dice
- Expand simultaneous cup capacity up to 10 dice for full-table play
- Unlock iPhone Duo Private Shield roll history strip + Apple ID Restore Purchases