This effect is often described as having numbers "travel magically" from one device to another. The best part is that the entire effect is designed to be very easy to perform, requiring no accomplice and no heavy memory work. The app also includes a detailed video tutorial explaining the full routine and subtleties to reinforce the effect.
: Performers can secretly switch between a completely functional, normal calculator mode and the rigged routine mode right in front of the audience without changing screens.
The R-Digit app, developed by Benjamin Vianney and distributed by Magie Factory, is a paid application available exclusively for iOS devices. At its core, the app is a digital prop that allows a magician to secretly take control of a spectator's iPhone calculator. From there, the performer can make numbers vanish from the spectator's phone and appear on their own, move digits around on the display, and perform other "increasingly impossible things". It’s important to note that the app is designed for professional and amateur magicians who understand the importance of keeping a secret and is clearly for entertainment purposes only.
At its core, R-Digit allows numbers to travel magically from a spectator’s mobile calculator to yours, creating increasingly impossible effects right before their eyes. Whether you are a professional magician looking to add a fresh, tech‑savvy piece to your repertoire or an amateur enthusiast eager to amaze friends and family, R-Digit offers a wide field of magical possibilities grounded in a deceptively simple premise.
| Specification | Details | |---|---| | | Benjamin Vianney (Magie Factory) | | Platform | iOS (iPhone, iPad, iPod touch, Apple Vision) | | Price | $34.99 USD (pricing varies by region) | | File Size | Approximately 15 MB | | Minimum OS | iOS 13.0 or later | | Latest Version | 1.8.1 (March 20, 2026) | | Category | Entertainment / Utilities | | Age Rating | 4+ | | Languages | English, French | | In‑App Purchases | LED Travel ($11.99 USD), Digits Peek ($9.99 USD) |
At its core, the is a next-generation digital toolkit designed to transform how you interact with numbers on your mobile device. Unlike standard calculator apps that merely perform basic arithmetic, R Digit Magic leverages advanced algorithms to offer "smart computation." The "R" stands for "Real-time" and "Recursive," hinting at its ability to learn from your input patterns and provide predictive solutions.
Never just pull out your phone and say, "Look at this trick." Integrate the phone naturally. Say, "Let's use the calculator to keep this completely fair."
Do not perform multiple phone tricks in a single set, as this hints that the device is gimmicked.
The app allows you to set custom trigger modes and delays, giving you full control over the timing of the reveal.
: Spend time in the settings menu configuring custom time delays. This allows you to tuck your phone away or create a physical separation from the devices before the numbers visually jump, making the illusion look completely hands-off.
“I would save it for when you’re showing someone a trick who you are unlikely to see again (i.e., someone who is unlikely to see you perform a trick using your phone again).”
– You can switch between calculator mode and routine mode right in front of your audience, whenever you want. The transition is invisible to onlookers, allowing you to move seamlessly from a normal calculator into your performance.