RPN vs Chessconnect

RPN-25 CE is a photo-realistic simulation of Hewlett-Packard's highly popular scientific calculator HP-25 for the iPhone. Produced from August 1975 through 1978, it was the "Squash" member of the second-generation HP calculators known as the "Woodstock" series. It was also the first programmable calculator costing less than $200. RPN-25 CE simulates the HP-25C version released in July 1976. Its major improvement in that update was "Continuous Memory". While the simulator works just like the original calculator, a number of carefully designed extensions make it massively more powerful. Features: • Photo-realistic look • Programmable (99 or 999 steps), subroutines, conditional loops, branching • Insert and delete steps with automatic address correction • 15 user-defined function keys of up to 6 characters each, redefinable under program control • Programmable text messages • Program Auto-Start option upon loading • 100 symbolic labels • 100 visible registers, "non-volatile", with unrestricted store/recall arithmetic • 100 flags, visible at a glance • Single-step constants • Program comments • Program library with more than 150 programs pre-installed • More than 270 functions and operations not available on the HP-25 • 100 sounds built-in • Much faster than the original • "Live" register view supporting user interaction (run/stop, single-stepping) • "Live" stack view • Thousands separator (optional) • High-contrast display (optional) • Selectable pause length (up to a day) • Program listing view with program title and description • Program library view • Store, name and retrieve any number of programs • Sharing: Files, iCloud Drive, e-mail, AirDrop, Dropbox, copy, paste, print • Import and run RPN-32 CE and GO-25 programs • Run a large number of HP-41 programs with little or no changes • Clock display (AM/PM or 24h) • Supports Dark Mode Calculator functions: • Statistics, including clearing statistics registers only • Factorial for arbitrary arguments • Trigonometric functions (degrees, radians, grads) • Polar/rectangular conversions • Inverse, square root, logarithm, exponential, Pi • Percentage • Storage arithmetic (store and recall) • Extended stack operations • Low-battery warning • Sound alerts • ..and many, many more Details: cuveesoft.ch/rpn25

Great news for iOS users! The Chessconnect app is now available, bringing the most popular browser extension for electronic chess boards directly to your mobile device. Just like the acclaimed Chrome extension, the Chessconnect iOS app lets you seamlessly connect your smart chessboard to top platforms like Chess.com, Lichess.org, Noctie.ai, and Chessiverse.com. Now, you can enjoy the authentic feel of a physical board combined with the power of online play, anywhere you go! Why You'll Love the Chessconnect iOS App: Play Anywhere: Connect your electronic chessboard to your iOS phone or tablet for an unmatched portable chess experience. 100% Free: Get all the great features of Chessconnect without any cost or hidden fees. Seamless Integration: Enjoy direct, legal connections to leading chess sites using their official APIs. Extensive Board Support: Compatible with almost all electronic chess boards that are equipped with Bluetooth LE. Full Online Features: Play against bots or human opponents, participate in live tournaments, solve puzzles, and dive into studies – all from your physical board. Enhanced Gameplay: Benefit from features like optional move delay, sound or speech announcements, and move/time display on compatible chess clocks. Chess960 Support: Enjoy full support for Chess960 (Fischer Random Chess). Download the Chessconnect iOS app today and elevate your game! (Please note: DGT's electronic chess boards require the Chessconnect adapter for DGT and iOS. See here for more information: https://chessconnect.de/#chessconnect-adapter)