Split Flap vs NerDie

Turn any screen into a beautiful split-flap display. Split Flap brings the iconic look and sound of mechanical departure boards to your iPhone, iPad, Mac, and Apple TV — all with one purchase. MODES FOR EVERY MOMENT Clock — A stunning flip clock with custom timezone support. Watch the minutes roll over with satisfying mechanical sound. Custom Message — Type anything and watch it flip into place letter by letter. Perfect for welcome signs, desk displays, or storefront messaging. Quotes — Load up your favorite quotes and let them rotate automatically. Drag to reorder, sync across devices with iCloud, and let inspiration find you throughout the day. Now Playing — See what's playing on your screen in real time. Song title and artist flip into view as your music changes. (iOS and macOS) Timer — Countdown from preset durations (5 to 60 minutes) or count up with the stopwatch. Large, bold digits you can read from across the room. Paint — Create pixel art directly on the board. A creative canvas with a retro twist. DESIGNED FOR EVERY SCREEN Works beautifully on iPhone, iPad, Mac, and Apple TV. Each platform is purpose-built — not a lazy port. Apple TV uses the Siri Remote for effortless navigation, Mac supports desktop pinning and a screen saver, and iOS includes home screen widgets. LOOK AND FEEL Choose from 7 color themes: Classic Yellow, Amber, Green, Blue, Red, Purple, and White. The Confetti theme randomizes tile colors for a playful twist. 10+ flip patterns (spiral, matrix, snake, and more) control how the board reveals new content. SOUNDS THAT SATISFY Three built-in sound themes — Mechanical, Typewriter, and Soft — each synthesized to match the rhythm of the animation. Every clack fires at the exact midpoint of each tile flip, just like a real board. WIDGETS Add a flip clock, daily quote, custom message, or countdown timer to your home screen or lock screen. Choose your color theme and appearance right from the widget editor. Five widget types — each designed for a specific purpose. ONE PURCHASE. EVERY PLATFORM. Split Flap is a one-time purchase that unlocks premium features across iPhone, iPad, Mac, and Apple TV through Universal Purchase. No subscriptions. No ads. Just a beautiful display. Built with SwiftUI. Syncs settings and quotes via iCloud. Runs natively on every Apple platform.

NerDie is an 8-bit noise machine for iPad and iPhone: four oscillators, four LFOs, a summing tree with eight algorithms, a resonant low-pass filter and a one-bar sequencer. Thirty-two registers, integer arithmetic, mono output — the sound of a chip rather than a picture of one. The engine runs in whole numbers at a fixed chip rate. Overflow, wrap and quantisation are not added afterwards to make it sound old: they are the signal itself. It runs on its own or as an AUv3 instrument on a MIDI track in any host that loads them, in portrait and in landscape. THE MACHINE • 4 oscillators, 16 waveforms each, 19 to 1350 Hz • 4 LFOs, 8 shapes, moving pitch or volume — free-running in Hz, or multipliers of the clock up to x128 with the phase reset on every tick • 3 summing topologies x 3 nodes x 8 algorithms: addition, overflow, subtraction, ring modulation, XOR, FM and wave-shaping — 1,536 ways to add four voices together • 8-bit resonant low-pass filter that self-oscillates at the top of its travel • One-bar sequencer with overdub, recorded finer than a sixteenth-note grid, driven by the internal clock, the host transport or MIDI clock • 32 registers on 8 pages of 4 pots, with optional hardware-style pot pickup • Four chip rates — 15625, 31250, 62500, 78125 Hz — and three outputs: RAW, CLEAN, TAPE TWO KINDS OF ACCIDENT CHAOS throws every register at once, the way the machine does, and sometimes lands on silence. RND builds a whole patch, renders it and measures it before handing it over, so it always makes a sound. UNDO brings back what you had. MADE FOR GLASS Drag a knob up and down for the coarse move and sideways for the fine one, eight times slower, without lifting your finger. Long press to type a value in its real unit - Hz, ms, %, the name of a waveform - to reset it, or to assign a MIDI CC with MIDI Learn. Double tap for the default. Two knobs turn at once, and the four pads are played with as many fingers as you like. Pinch the panel up to 250% and drag it around; the top bar and the value strip never scale, so the preset name and the register you are turning stay readable at any zoom. MPE The four oscillators become four MPE voices. Press, slide, strike and bend pass through a matrix that decides what each one moves — tuning, level, waveform, LFO depth, filter cutoff — with a response curve per gesture. Controllers reach the app over Bluetooth or a Camera Connection Kit, and reach the AUv3 through its host. THREE FACES The pixel panel with its four pots and page buttons; the matrix, with all 32 registers on screen at once; and a photograph of the circuit with the controls mounted on it. PRESETS 45 factory presets in nine folders — Bass, Drones, FX, Glitch, Melodic, Noise, Rhythms, Sequenced, Init — installed on the first run. The ones you save live in the Files app under On My iPad / NerDie / Presets, so you can copy them out or drop new ones in. The .ner format is identical to the desktop version and travels in both directions. Presets saved inside a host are there when you open the app on its own. NO ACCOUNT, NO SUBSCRIPTION, NO ADS Buy it once. There is nothing to activate, nothing to sign in to, and nothing is collected. NerDie is an independent project, modelled on the behaviour of the SOMA Laboratory Rumble of Ancient Times. It is not affiliated with or endorsed by SOMA Laboratory, and no firmware, artwork, font or layout of the original is used in this product.