BenchKit vs Sofa

BenchKit puts four everyday electronics calculations in one focused, offline iPhone app. RESISTOR CODES Decode 3, 4, 5, and 6-band axial resistors by tapping the bands on a drawn resistor, or SMD codes (3-digit, 4-digit, EIA-96, R notation). See the tolerance range, IEC marking code, and standard E-series match, with a warning when a reading is probably reversed. PCB TRACE WIDTH Estimate minimum internal or external copper trace width from current, copper weight, and allowed temperature rise, in millimeters and mils, or the current a given width can carry. Results outside the IPC-2221 chart range are flagged as extrapolations. VOLTAGE DROP Voltage drop, voltage at the load, power lost in the wiring, and the share of supply that reaches the load. Enter the round-trip resistance, or wire gauge (AWG or mm²), length, and conductor temperature. VOLTAGE DIVIDER Ideal unloaded output voltage, divider current, per-resistor dissipation, output resistance, and what an optional load does to the output. Or enter a target voltage and get the closest E24/E96 resistor pairs with their worst-case output. Type values the way engineers write them: 4k7, 2R2, 100m, 3V3; the keyboard has keys for the letters. No account. No ads. No analytics. No network connection. English, Simplified Chinese, and Japanese. BenchKit is a quick estimation tool. Always verify production designs against component datasheets, applicable standards, simulation, and physical validation.

The worst part of a smart TV is typing on it. Sofa fixes exactly that — and now it puts your photos and files on the big screen too. Sofa is a remote built around your phone's keyboard: open the Type sheet, write "that show with the chess prodigy," and it lands straight in the TV's search box. No more spelling passwords one arrow-press at a time. NEW: SHOW ON TV - Put photos, videos, PDFs, documents and slides from your iPhone on the TV, full screen - Show the same thing on several TVs at once — pick all your TVs or just a few - Works with Apple TV and AirPlay TVs — and many Samsung and LG sets receive content straight from Sofa, with no Apple TV or Screen Mirroring at all - Only what you pick appears — never your notifications or other apps - Swipe through your photos and scroll documents on your phone; the TVs follow - Zoom in, turn portrait pages sideways to fill the screen, and pause the TV while you look for the next thing - Slideshow mode, and open any file in Sofa from Files, Mail or the share sheet WHAT'S IN THE REMOTE - A real keyboard for every TV text field — searches, emails, passwords - Three input styles: classic D-pad, swipe trackpad, and a number pad with channel up/down - Launch streaming apps in one tap — Netflix, YouTube, Disney+, Prime Video and more - On Roku, the full channel grid with real icons - Volume, mute, power, playback, info and back - Power on from your phone: Sofa saves your TV's power-on address by itself the first time it connects — nothing to type - Rooms: save every TV in the house with a friendly name and switch with a tap - A connection log in Settings, so you can see exactly what's happening if a TV won't respond - A built-in Demo TV so you can try every screen before you're home - Speaks your language: 40+ languages, switch anytime in Settings — no restart SET UP IN A MINUTE An animated guide walks you through it: same Wi-Fi, allowing Sofa on the TV, and switching on your TV's network wake-up setting — with the exact menu path for Samsung, LG, Roku and Vizio. NEW: SOFA ON APPLE WATCH - The basics on your wrist: a big D-pad and OK, back, home, play/pause, mute and power - Turn the Digital Crown for volume - Switch between your TVs right from the watch WORKS WITH ROKU, SAMSUNG, LG & VIZIO - Roku TVs and streaming players — no pairing needed - Samsung Smart TVs (2016 and newer, plus 2014–15 models) - LG webOS TVs - Vizio SmartCast TVs Samsung, LG and Vizio ask for a one-time approval on the TV screen the first time Sofa connects — then it just works, and reconnects automatically when the TV comes back on. FREE, THAT'S IT No subscription. No ads. No "premium" upsell. The remote apps charging $40 a year for a keyboard are the reason Sofa exists — Sofa is free and complete. PRIVATE BY DESIGN Sofa talks directly to your TV on your home network, and your photos and files go straight from your iPhone to your TV — nothing is uploaded, and there's no account. Sofa sends anonymous usage stats (never your TV names, network addresses, what you type or what you show) so we can fix what breaks; turn them off anytime in Settings. TRADEMARKS Netflix, YouTube, Disney+, Prime Video, Roku, Samsung, LG, Vizio, Apple TV and other names are trademarks of their owners. Sofa is an independent app — it isn't affiliated with, sponsored by or endorsed by any TV maker or streaming service, and it uses their names and icons only to show which TVs and apps it can control. Privacy policy: https://allthingsn.com/apps/sofa/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/