MainframePunch

VERSION 2.0 — Cards can be punched directly in the MainframePunch iMessage extension. Quick Punch cards and ready-made cards all carry authentic keypunch audio — thirteen clacks sampled from a real IBM Hollerith machine — and the sound travels with the card, so the person receiving it hears the punches too, not just you. CARDS THAT PUNCH THEMSELVES Every card now starts blank and fills in as the beam sweeps from column one to the end, settling into the finished card. What used to be a silent still is now a small performance. QUICK PUNCH, REBUILT Punch a card without ever leaving the conversation: Realistic Custom Card — classic manila stock Mid-Century Color Card — period-correct pastels A dozen ready-made cards for when you're in a hurry EXTENDED HOLLERITH ENCODING The zone punches for letters J through Z have been corrected to match ANSI X3.26. If you punched a card in an earlier version, the holes are now exactly what an IBM 029 would have produced. Special characters have been added! A BRIGHTER CONSOLE Warmer phosphor green throughout, a live scrolling prompt on the message line, and a new attract loop on the console when the machine is idle. FREE TO DOWNLOAD, WITH OPERATOR ACCESS MainframePunch is now free. Punching cards in iMessage is free and stays that way. Everything — including Full Reel exports and stacked decks — is unlimited for your first fourteen days, after which reel exports are covered by an Operator subscription ($2.99/month or $19.99/year, each with a free trial). IF YOU ALREADY BOUGHT MAINFRAMEPUNCH You keep everything. Your original purchase grants permanent Operator access automatically — no subscription, no action needed, no charge. Thank you for backing this thing early. UNDER THE HOOD Rebuilt on Expo SDK 54 and React Native 0.81 for iOS 26, with a rewritten audio engine and faster, more reliable reel exports.